./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL --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 ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:57:56,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:57:56,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:57:56,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:57:56,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:57:56,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:57:56,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:57:56,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:57:56,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:57:56,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:57:56,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:57:56,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:57:56,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:57:56,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:57:56,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:57:56,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:57:56,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:57:56,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:57:56,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:57:56,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:57:56,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:57:56,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:57:56,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:57:56,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:57:56,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:57:56,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:57:56,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:57:56,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:57:56,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:57:56,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:57:56,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:57:56,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:57:56,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:57:56,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:57:56,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:57:56,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:57:56,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:57:56,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:57:56,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:57:56,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:57:56,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:57:56,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:57:56,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:57:56,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:57:56,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:57:56,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:57:56,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:57:56,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:57:56,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:57:56,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:57:56,626 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:57:56,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:57:56,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:57:56,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:57:56,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:57:56,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:57:56,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:57:56,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:57:56,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:57:56,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:57:56,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:57:56,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:57:56,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:57:56,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:57:56,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:57:56,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:57:56,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:57:56,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:57:56,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:57:56,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:57:56,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:57:56,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:57:56,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:57:56,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:57:56,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:57:56,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:57:56,635 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2021-11-19 04:57:56,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:57:56,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:57:56,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:57:56,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:57:56,993 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:57:56,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-19 04:57:57,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/c17fa639c/78dca2c78c6b4657a39c7954c5cead7b/FLAGa355729f0 [2021-11-19 04:57:57,600 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:57:57,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-19 04:57:57,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/c17fa639c/78dca2c78c6b4657a39c7954c5cead7b/FLAGa355729f0 [2021-11-19 04:57:57,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/c17fa639c/78dca2c78c6b4657a39c7954c5cead7b [2021-11-19 04:57:57,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:57:57,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:57:57,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:57:57,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:57:57,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:57:57,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:57" (1/1) ... [2021-11-19 04:57:57,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72db1087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:57, skipping insertion in model container [2021-11-19 04:57:57,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:57" (1/1) ... [2021-11-19 04:57:57,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:57:57,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:57:58,223 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-19 04:57:58,226 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:57:58,240 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:57:58,311 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-19 04:57:58,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:57:58,328 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:57:58,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58 WrapperNode [2021-11-19 04:57:58,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:57:58,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:57:58,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:57:58,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:57:58,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,417 INFO L137 Inliner]: procedures = 18, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-19 04:57:58,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:57:58,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:57:58,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:57:58,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:57:58,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:57:58,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:57:58,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:57:58,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:57:58,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (1/1) ... [2021-11-19 04:57:58,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:57:58,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:57:58,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:57:58,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:57:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 04:57:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:57:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:57:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:57:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:57:58,708 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:57:58,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:57:58,971 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:57:58,978 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:57:58,978 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 04:57:58,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:58 BoogieIcfgContainer [2021-11-19 04:57:58,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:57:58,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:57:58,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:57:58,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:57:58,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:57" (1/3) ... [2021-11-19 04:57:58,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad58d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:58, skipping insertion in model container [2021-11-19 04:57:58,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:58" (2/3) ... [2021-11-19 04:57:58,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad58d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:58, skipping insertion in model container [2021-11-19 04:57:58,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:58" (3/3) ... [2021-11-19 04:57:58,990 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2021-11-19 04:57:58,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:57:58,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:57:59,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:57:59,057 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 [2021-11-19 04:57:59,058 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:57:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-19 04:57:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 04:57:59,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:59,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:57:59,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:59,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-19 04:57:59,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:59,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801352779] [2021-11-19 04:57:59,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:59,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:59,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:59,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801352779] [2021-11-19 04:57:59,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801352779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:59,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:59,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:57:59,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286681511] [2021-11-19 04:57:59,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:59,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:57:59,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:57:59,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:57:59,323 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-19 04:57:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:59,342 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-19 04:57:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:57:59,344 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 [2021-11-19 04:57:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:59,354 INFO L225 Difference]: With dead ends: 56 [2021-11-19 04:57:59,354 INFO L226 Difference]: Without dead ends: 26 [2021-11-19 04:57:59,357 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 [2021-11-19 04:57:59,362 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-19 04:57:59,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:57:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-19 04:57:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-19 04:57:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-11-19 04:57:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-19 04:57:59,429 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-19 04:57:59,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:59,456 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-19 04:57:59,456 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) [2021-11-19 04:57:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-19 04:57:59,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:57:59,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:59,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:57:59,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:57:59,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-19 04:57:59,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:59,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855327878] [2021-11-19 04:57:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:59,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:57:59,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:57:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:57:59,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:57:59,692 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:57:59,696 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:57:59,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:57:59,716 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 04:57:59,721 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:57:59,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:59 BoogieIcfgContainer [2021-11-19 04:57:59,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:57:59,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:57:59,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:57:59,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:57:59,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:58" (3/4) ... [2021-11-19 04:57:59,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:57:59,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:57:59,774 INFO L158 Benchmark]: Toolchain (without parser) took 1829.93ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 59.3MB in the beginning and 103.9MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:57:59,775 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:57:59,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.52ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 70.5MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:57:59,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.10ms. Allocated memory is still 98.6MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:57:59,777 INFO L158 Benchmark]: Boogie Preprocessor took 76.16ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 67.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:57:59,778 INFO L158 Benchmark]: RCFGBuilder took 479.82ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 54.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:57:59,779 INFO L158 Benchmark]: TraceAbstraction took 785.33ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 53.9MB in the beginning and 104.9MB in the end (delta: -51.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:57:59,779 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 103.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:57:59,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.52ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 70.5MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.10ms. Allocated memory is still 98.6MB. Free memory was 70.5MB in the beginning and 68.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.16ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 67.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 479.82ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 54.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 785.33ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 53.9MB in the beginning and 104.9MB in the end (delta: -51.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 103.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 142]: 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 129, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] 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; [L45] static const double zero = 0.0; VAL [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, two54_log=18014398509481984, zero=0] [L137] double x = 0.0 / 0.0; [L138] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481987, 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, two54_log=18014398509481984, x=18014398509481987, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481987, hx=-1, 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, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481987, hx=-1, 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, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481987, hx=-1, 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, lx=1, two54_log=18014398509481984, x=18014398509481987, zero=0] [L138] RET, EXPR __ieee754_log(x) [L138] double res = __ieee754_log(x); [L141] CALL, EXPR isnan_double(res) [L129] return x != x; VAL [\old(x)=18014398509481986, \result=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, two54_log=18014398509481984, x=18014398509481986, zero=0] [L141] RET, EXPR isnan_double(res) [L141] COND TRUE !isnan_double(res) [L142] reach_error() VAL [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, res=18014398509481986, two54_log=18014398509481984, x=18014398509481987, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 39 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, 39 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=29occurred 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 [2021-11-19 04:57:59,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL --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 ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:58:02,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:58:02,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:58:02,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:58:02,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:58:02,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:58:02,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:58:02,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:58:02,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:58:02,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:58:02,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:58:02,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:58:02,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:58:02,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:58:02,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:58:02,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:58:02,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:58:02,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:58:02,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:58:02,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:58:02,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:58:02,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:58:02,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:58:02,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:58:02,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:58:02,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:58:02,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:58:02,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:58:02,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:58:02,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:58:02,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:58:02,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:58:02,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:58:02,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:58:02,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:58:02,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:58:02,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:58:02,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:58:02,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:58:02,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:58:02,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:58:02,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:58:02,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:58:02,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:58:02,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:58:02,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:58:02,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:58:02,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:58:02,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:58:02,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:58:02,649 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:58:02,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:58:02,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:58:02,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:58:02,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:58:02,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:58:02,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:58:02,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:58:02,653 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:58:02,653 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:58:02,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:58:02,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:58:02,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:58:02,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:58:02,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:58:02,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:58:02,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:58:02,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:58:02,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:58:02,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:58:02,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:58:02,657 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:58:02,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:58:02,657 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:58:02,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:58:02,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:58:02,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:58:02,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:58:02,659 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2021-11-19 04:58:03,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:58:03,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:58:03,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:58:03,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:58:03,059 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:58:03,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-19 04:58:03,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/dcc1407b9/6d0a8df748f3457d8160af2ee8ccce2f/FLAG9c89b67de [2021-11-19 04:58:03,746 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:58:03,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2021-11-19 04:58:03,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/dcc1407b9/6d0a8df748f3457d8160af2ee8ccce2f/FLAG9c89b67de [2021-11-19 04:58:04,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/data/dcc1407b9/6d0a8df748f3457d8160af2ee8ccce2f [2021-11-19 04:58:04,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:58:04,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:58:04,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:58:04,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:58:04,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:58:04,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78613d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04, skipping insertion in model container [2021-11-19 04:58:04,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:58:04,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:58:04,417 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-19 04:58:04,429 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:58:04,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:58:04,495 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_693633c5-fff5-4bb8-b5ec-eb918d40fe21/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2021-11-19 04:58:04,496 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:58:04,529 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:58:04,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04 WrapperNode [2021-11-19 04:58:04,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:58:04,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:58:04,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:58:04,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:58:04,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,584 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2021-11-19 04:58:04,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:58:04,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:58:04,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:58:04,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:58:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:58:04,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:58:04,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:58:04,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:58:04,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (1/1) ... [2021-11-19 04:58:04,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:58:04,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:58:04,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:58:04,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:58:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:58:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-19 04:58:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-19 04:58:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:58:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:58:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 04:58:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:58:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:58:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 04:58:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:58:04,844 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:58:04,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:58:28,060 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:58:28,066 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:58:28,067 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 04:58:28,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:28 BoogieIcfgContainer [2021-11-19 04:58:28,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:58:28,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:58:28,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:58:28,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:58:28,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:58:04" (1/3) ... [2021-11-19 04:58:28,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:28, skipping insertion in model container [2021-11-19 04:58:28,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:04" (2/3) ... [2021-11-19 04:58:28,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:28, skipping insertion in model container [2021-11-19 04:58:28,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:28" (3/3) ... [2021-11-19 04:58:28,080 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2021-11-19 04:58:28,086 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:58:28,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:58:28,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:58:28,154 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 [2021-11-19 04:58:28,154 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:58:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-19 04:58:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 04:58:28,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:58:28,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:58:28,188 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:58:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:58:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-11-19 04:58:28,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:58:28,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383365798] [2021-11-19 04:58:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:58:28,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:58:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:58:28,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:58:28,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:58:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:58:29,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 04:58:29,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:58:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:29,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:58:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:29,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:58:29,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383365798] [2021-11-19 04:58:29,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383365798] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:58:29,797 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:58:29,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 04:58:29,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534585979] [2021-11-19 04:58:29,800 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:58:29,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:58:29,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:58:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:58:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:58:29,842 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 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) [2021-11-19 04:58:29,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:58:29,863 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-11-19 04:58:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:58:29,866 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 [2021-11-19 04:58:29,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:58:29,876 INFO L225 Difference]: With dead ends: 56 [2021-11-19 04:58:29,877 INFO L226 Difference]: Without dead ends: 26 [2021-11-19 04:58:29,880 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 [2021-11-19 04:58:29,885 INFO L933 BasicCegarLoop]: 39 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, 39 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 [2021-11-19 04:58:29,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:58:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-19 04:58:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-19 04:58:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-11-19 04:58:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-11-19 04:58:29,918 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-11-19 04:58:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:58:29,919 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-11-19 04:58:29,920 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) [2021-11-19 04:58:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-19 04:58:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:58:29,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:58:29,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:58:29,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:58:30,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:58:30,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:58:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:58:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-11-19 04:58:30,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:58:30,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539997484] [2021-11-19 04:58:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:58:30,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:58:30,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:58:30,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:58:30,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:58:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:58:31,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:58:31,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:58:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:32,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:58:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:33,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:58:33,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539997484] [2021-11-19 04:58:33,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539997484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:58:33,226 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:58:33,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:58:33,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480389908] [2021-11-19 04:58:33,226 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:58:33,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:58:33,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:58:33,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:58:33,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:58:33,229 INFO L87 Difference]: Start difference. First operand 26 states and 36 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) [2021-11-19 04:58:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:58:33,243 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-11-19 04:58:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:58:33,243 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 [2021-11-19 04:58:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:58:33,245 INFO L225 Difference]: With dead ends: 31 [2021-11-19 04:58:33,245 INFO L226 Difference]: Without dead ends: 26 [2021-11-19 04:58:33,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:58:33,247 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:58:33,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2021-11-19 04:58:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-19 04:58:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-19 04:58:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 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) [2021-11-19 04:58:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-11-19 04:58:33,255 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2021-11-19 04:58:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:58:33,256 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-11-19 04:58:33,256 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) [2021-11-19 04:58:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-19 04:58:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:58:33,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:58:33,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:58:33,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:58:33,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:58:33,492 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:58:33,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:58:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2021-11-19 04:58:33,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:58:33,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373091158] [2021-11-19 04:58:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:58:33,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:58:33,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:58:33,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:58:33,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:58:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:58:33,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 04:58:33,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:58:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:35,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:58:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:58:39,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:58:39,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373091158] [2021-11-19 04:58:39,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373091158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:58:39,620 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:58:39,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:58:39,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461529920] [2021-11-19 04:58:39,621 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:58:39,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:58:39,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:58:39,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:58:39,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:58:39,623 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:58:42,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:58:49,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:58:52,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:58:54,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:58:56,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:58:58,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:01,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:03,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:05,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:07,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:09,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:11,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:14,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:16,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:18,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:20,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:22,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:24,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:26,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:28,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:30,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:59:30,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:59:30,916 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-11-19 04:59:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:59:30,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 04:59:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:59:30,918 INFO L225 Difference]: With dead ends: 36 [2021-11-19 04:59:30,918 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 04:59:30,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:59:30,921 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:59:30,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 107 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 21 Unknown, 0 Unchecked, 50.6s Time] [2021-11-19 04:59:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 04:59:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-19 04:59:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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) [2021-11-19 04:59:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-11-19 04:59:30,929 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2021-11-19 04:59:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:59:30,930 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-11-19 04:59:30,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:59:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-11-19 04:59:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 04:59:30,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:59:30,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:59:30,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:59:31,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:59:31,140 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:59:31,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:59:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-11-19 04:59:31,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:59:31,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148926503] [2021-11-19 04:59:31,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:59:31,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:59:31,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:59:31,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:59:31,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:59:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:59:32,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:59:32,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:59:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:59:33,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:59:40,746 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log_~x#1| |c_ULTIMATE.start___ieee754_log_~x#1|) c_~zero~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from false [2021-11-19 05:00:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:00:02,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:00:02,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148926503] [2021-11-19 05:00:02,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148926503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:00:02,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:00:02,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 05:00:02,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163796436] [2021-11-19 05:00:02,057 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:00:02,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:00:02,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:00:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:00:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-11-19 05:00:02,059 INFO L87 Difference]: Start difference. First operand 26 states and 34 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) [2021-11-19 05:00:09,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:12,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:14,633 WARN L515 Checker$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 [] [2021-11-19 05:00:17,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:19,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:21,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:23,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:25,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:28,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:30,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:32,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:34,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:37,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:39,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:00:39,397 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2021-11-19 05:00:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:00:39,398 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 [2021-11-19 05:00:39,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:00:39,399 INFO L225 Difference]: With dead ends: 36 [2021-11-19 05:00:39,399 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 05:00:39,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2021-11-19 05:00:39,401 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:00:39,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 14 Unknown, 25 Unchecked, 36.2s Time] [2021-11-19 05:00:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 05:00:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-19 05:00:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2021-11-19 05:00:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-19 05:00:39,408 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2021-11-19 05:00:39,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:00:39,409 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-19 05:00:39,409 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) [2021-11-19 05:00:39,410 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-19 05:00:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:00:39,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:00:39,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:00:39,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:00:39,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:00:39,628 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:00:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:00:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash 464451163, now seen corresponding path program 1 times [2021-11-19 05:00:39,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:00:39,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665293757] [2021-11-19 05:00:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:00:39,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:00:39,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:00:39,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:00:39,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:00:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:39,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:00:39,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:00:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:00:41,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:00:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:00:46,681 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:00:46,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665293757] [2021-11-19 05:00:46,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665293757] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:00:46,682 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:00:46,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 05:00:46,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248037033] [2021-11-19 05:00:46,682 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:00:46,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:00:46,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:00:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:00:46,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2021-11-19 05:00:46,684 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-19 05:00:48,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:52,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:00:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:00:52,741 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2021-11-19 05:00:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:00:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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 17 [2021-11-19 05:00:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:00:53,309 INFO L225 Difference]: With dead ends: 47 [2021-11-19 05:00:53,309 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 05:00:53,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2021-11-19 05:00:53,311 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:00:53,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 2 Unknown, 11 Unchecked, 6.0s Time] [2021-11-19 05:00:53,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 05:00:53,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-19 05:00:53,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:00:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2021-11-19 05:00:53,318 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2021-11-19 05:00:53,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:00:53,318 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-11-19 05:00:53,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2021-11-19 05:00:53,319 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-19 05:00:53,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 05:00:53,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:00:53,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:00:53,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 05:00:53,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:00:53,522 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:00:53,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:00:53,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2124593878, now seen corresponding path program 1 times [2021-11-19 05:00:53,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:00:53,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929314394] [2021-11-19 05:00:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:00:53,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:00:53,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:00:53,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:00:53,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 05:00:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:00:53,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:00:53,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:00:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:00:55,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:00:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:00:57,400 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:00:57,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929314394] [2021-11-19 05:00:57,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929314394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:00:57,401 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:00:57,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 05:00:57,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142596446] [2021-11-19 05:00:57,401 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:00:57,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:00:57,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:00:57,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:00:57,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:00:57,412 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:00:57,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:00:57,593 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-11-19 05:00:57,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:00:57,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-19 05:00:57,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:00:57,595 INFO L225 Difference]: With dead ends: 26 [2021-11-19 05:00:57,595 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 05:00:57,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:00:57,597 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:00:57,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 4 Unchecked, 0.2s Time] [2021-11-19 05:00:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 05:00:57,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 05:00:57,599 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) [2021-11-19 05:00:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 05:00:57,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-11-19 05:00:57,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:00:57,600 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 05:00:57,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:00:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 05:00:57,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 05:00:57,604 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:00:57,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 05:00:57,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:00:57,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 05:00:59,269 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-11-19 05:00:59,269 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-11-19 05:00:59,269 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-11-19 05:00:59,270 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|)) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 05:00:59,270 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-11-19 05:00:59,270 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 05:00:59,270 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 05:00:59,270 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-11-19 05:00:59,271 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 05:00:59,271 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-11-19 05:00:59,271 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-11-19 05:00:59,271 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-11-19 05:00:59,272 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-11-19 05:00:59,272 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-11-19 05:00:59,272 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-11-19 05:00:59,272 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 05:00:59,272 INFO L854 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 05:00:59,273 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-11-19 05:00:59,273 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 144) no Hoare annotation was computed. [2021-11-19 05:00:59,273 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-11-19 05:00:59,273 INFO L854 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-11-19 05:00:59,274 INFO L854 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_~x#1|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_#res#1|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-19 05:00:59,274 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-11-19 05:00:59,274 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-11-19 05:00:59,274 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-19 05:00:59,274 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-11-19 05:00:59,274 INFO L861 garLoopResultBuilder]: At program point L146(lines 131 147) the Hoare annotation is: true [2021-11-19 05:00:59,275 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-11-19 05:00:59,275 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-19 05:00:59,278 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 05:00:59,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:00:59,287 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 05:00:59,292 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 05:00:59,297 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,302 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,302 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,303 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,303 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,304 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,304 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,305 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,305 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:00:59 BoogieIcfgContainer [2021-11-19 05:00:59,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:00:59,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:00:59,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:00:59,309 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:00:59,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:28" (3/4) ... [2021-11-19 05:00:59,313 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 05:00:59,327 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-19 05:00:59,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-19 05:00:59,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:00:59,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 05:00:59,359 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-19 05:00:59,360 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-19 05:00:59,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-19 05:00:59,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:00:59,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:00:59,392 INFO L158 Benchmark]: Toolchain (without parser) took 175293.40ms. Allocated memory is still 77.6MB. Free memory was 54.7MB in the beginning and 44.7MB in the end (delta: 10.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,393 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:00:59,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.34ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 56.0MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.95ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 53.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,395 INFO L158 Benchmark]: Boogie Preprocessor took 46.84ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,395 INFO L158 Benchmark]: RCFGBuilder took 23436.93ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 58.2MB in the end (delta: -6.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,396 INFO L158 Benchmark]: TraceAbstraction took 151235.32ms. Allocated memory is still 77.6MB. Free memory was 57.9MB in the beginning and 49.8MB in the end (delta: 8.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,396 INFO L158 Benchmark]: Witness Printer took 83.27ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 44.7MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:00:59,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.34ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 56.0MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.95ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 53.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.84ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 23436.93ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 58.2MB in the end (delta: -6.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 151235.32ms. Allocated memory is still 77.6MB. Free memory was 57.9MB in the beginning and 49.8MB in the end (delta: 8.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 83.27ms. Allocated memory is still 77.6MB. Free memory was 49.8MB in the beginning and 44.7MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 142]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 151.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 95.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 93.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 493 SdHoareTripleChecker+Invalid, 90.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 65 IncrementalHoareTripleChecker+Unchecked, 348 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 145 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 64 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 48.6s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 23 QuantifiedInterpolants, 925 SizeOfPredicates, 41 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 52]: Loop Invariant [2021-11-19 05:00:59,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 05:00:59,412 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 05:00:59,413 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant [2021-11-19 05:00:59,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant [2021-11-19 05:00:59,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 05:00:59,419 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-19 05:00:59,651 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-19 05:00:59,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693633c5-fff5-4bb8-b5ec-eb918d40fe21/bin/uautomizer-ZXIjhQolGL/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