./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8 --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 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:15:02,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:15:02,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:15:02,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:15:02,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:15:02,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:15:02,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:15:02,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:15:02,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:15:02,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:15:02,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:15:02,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:15:02,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:15:02,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:15:02,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:15:02,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:15:02,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:15:02,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:15:02,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:15:02,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:15:02,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:15:02,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:15:02,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:15:02,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:15:02,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:15:02,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:15:02,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:15:02,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:15:02,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:15:02,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:15:02,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:15:02,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:15:02,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:15:02,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:15:02,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:15:02,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:15:02,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:15:02,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:15:02,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:15:02,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:15:02,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:15:02,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:15:02,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:15:02,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:15:02,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:15:02,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:15:02,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:15:02,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:15:02,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:15:02,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:15:02,509 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:15:02,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:15:02,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:15:02,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:15:02,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:15:02,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:15:02,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:15:02,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:15:02,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:15:02,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:15:02,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:15:02,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:15:02,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:15:02,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:15:02,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:15:02,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:15:02,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:02,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:15:02,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:15:02,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:15:02,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:15:02,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:15:02,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:15:02,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:15:02,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:15:02,519 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2022-11-16 12:15:02,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:15:02,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:15:02,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:15:02,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:15:02,843 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:15:02,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2022-11-16 12:15:02,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/c0990bf4f/d918871307b643b185792da72034971d/FLAG7843ffc90 [2022-11-16 12:15:03,442 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:15:03,443 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2022-11-16 12:15:03,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/c0990bf4f/d918871307b643b185792da72034971d/FLAG7843ffc90 [2022-11-16 12:15:03,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/c0990bf4f/d918871307b643b185792da72034971d [2022-11-16 12:15:03,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:15:03,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:15:03,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:03,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:15:03,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:15:03,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:03" (1/1) ... [2022-11-16 12:15:03,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6c2aee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:03, skipping insertion in model container [2022-11-16 12:15:03,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:03" (1/1) ... [2022-11-16 12:15:03,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:15:03,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:15:04,128 WARN L229 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2022-11-16 12:15:04,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:04,143 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:15:04,185 WARN L229 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2022-11-16 12:15:04,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:04,200 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:15:04,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04 WrapperNode [2022-11-16 12:15:04,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:04,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:04,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:15:04,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:15:04,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,256 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 128 [2022-11-16 12:15:04,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:04,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:15:04,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:15:04,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:15:04,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:15:04,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:15:04,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:15:04,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:15:04,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (1/1) ... [2022-11-16 12:15:04,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:04,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:04,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:15:04,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:15:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:15:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:15:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:15:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 12:15:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:15:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 12:15:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:15:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:15:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:15:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:15:04,470 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:15:04,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:15:04,790 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:15:04,796 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:15:04,796 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:15:04,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:04 BoogieIcfgContainer [2022-11-16 12:15:04,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:15:04,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:15:04,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:15:04,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:15:04,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:15:03" (1/3) ... [2022-11-16 12:15:04,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b209154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:04, skipping insertion in model container [2022-11-16 12:15:04,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:04" (2/3) ... [2022-11-16 12:15:04,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b209154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:04, skipping insertion in model container [2022-11-16 12:15:04,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:04" (3/3) ... [2022-11-16 12:15:04,808 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2022-11-16 12:15:04,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:15:04,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:15:04,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:15:04,915 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17852b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:15:04,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:15:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:15:04,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:04,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:04,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1836594440, now seen corresponding path program 1 times [2022-11-16 12:15:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:04,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731942828] [2022-11-16 12:15:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:04,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:05,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:05,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731942828] [2022-11-16 12:15:05,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731942828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:05,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:05,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:15:05,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080924476] [2022-11-16 12:15:05,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:15:05,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:15:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:15:05,204 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:05,232 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2022-11-16 12:15:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:15:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:15:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:05,246 INFO L225 Difference]: With dead ends: 70 [2022-11-16 12:15:05,246 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 12:15:05,250 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:15:05,254 INFO L413 NwaCegarLoop]: 49 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, 49 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 [2022-11-16 12:15:05,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 12:15:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-16 12:15:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.4375) internal successors, (46), 32 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) [2022-11-16 12:15:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2022-11-16 12:15:05,294 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 9 [2022-11-16 12:15:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:05,294 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2022-11-16 12:15:05,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2022-11-16 12:15:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:15:05,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:05,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:05,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:15:05,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:05,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1551756373, now seen corresponding path program 1 times [2022-11-16 12:15:05,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:05,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098135051] [2022-11-16 12:15:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:05,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:05,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:05,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098135051] [2022-11-16 12:15:05,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098135051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:05,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:05,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:15:05,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998402765] [2022-11-16 12:15:05,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:05,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:15:05,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:15:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:05,630 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 12:15:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:05,664 INFO L93 Difference]: Finished difference Result 65 states and 88 transitions. [2022-11-16 12:15:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:05,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-11-16 12:15:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:05,666 INFO L225 Difference]: With dead ends: 65 [2022-11-16 12:15:05,666 INFO L226 Difference]: Without dead ends: 40 [2022-11-16 12:15:05,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:05,668 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:05,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-16 12:15:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2022-11-16 12:15:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 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) [2022-11-16 12:15:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2022-11-16 12:15:05,675 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 10 [2022-11-16 12:15:05,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:05,675 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-16 12:15:05,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 12:15:05,676 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2022-11-16 12:15:05,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:15:05,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:05,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:05,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:15:05,677 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:05,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:05,678 INFO L85 PathProgramCache]: Analyzing trace with hash 825574672, now seen corresponding path program 1 times [2022-11-16 12:15:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:05,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408050859] [2022-11-16 12:15:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:05,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:15:05,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:15:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:15:05,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:15:05,765 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:15:05,766 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:15:05,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:15:05,772 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:15:05,775 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:15:05,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:15:05 BoogieIcfgContainer [2022-11-16 12:15:05,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:15:05,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:15:05,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:15:05,802 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:15:05,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:04" (3/4) ... [2022-11-16 12:15:05,805 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:15:05,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:15:05,806 INFO L158 Benchmark]: Toolchain (without parser) took 1996.54ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 68.1MB in the beginning and 91.1MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,807 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 73.2MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:15:05,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.04ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 76.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.04ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,811 INFO L158 Benchmark]: Boogie Preprocessor took 45.99ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,812 INFO L158 Benchmark]: RCFGBuilder took 494.65ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 58.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,812 INFO L158 Benchmark]: TraceAbstraction took 1000.80ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 57.1MB in the beginning and 91.7MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:15:05,813 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 91.1MB in the end (delta: 653.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:15:05,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 73.2MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.04ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 76.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.04ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.99ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.65ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 58.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1000.80ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 57.1MB in the beginning and 91.7MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 91.1MB in the end (delta: 653.4kB). 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: 99]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = -1.0f / 0.0f; [L95] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=4294967304, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(x)=4294967304, hx=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L31] COND FALSE !(!((hx) < 0x7f800000L)) VAL [\old(x)=4294967304, hx=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L34] COND TRUE ((hx) == 0) [L35] return x; VAL [\old(x)=4294967304, \result=4294967304, hx=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L95] RET, EXPR __ieee754_sqrtf(x) [L95] float res = __ieee754_sqrtf(x); [L98] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=4294967304, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] [L98] RET, EXPR isnan_float(res) [L98] COND TRUE !isnan_float(res) [L99] reach_error() VAL [one_sqrt=1, res=4294967304, tiny_sqrt=1/1000000000000000000000000000000, x=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 93 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-11-16 12:15:05,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8 --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 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:15:08,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:15:08,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:15:08,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:15:08,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:15:08,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:15:08,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:15:08,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:15:08,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:15:08,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:15:08,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:15:08,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:15:08,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:15:08,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:15:08,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:15:08,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:15:08,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:15:08,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:15:08,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:15:08,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:15:08,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:15:08,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:15:08,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:15:08,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:15:08,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:15:08,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:15:08,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:15:08,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:15:08,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:15:08,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:15:08,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:15:08,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:15:08,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:15:08,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:15:08,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:15:08,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:15:08,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:15:08,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:15:08,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:15:08,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:15:08,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:15:08,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 12:15:08,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:15:08,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:15:08,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:15:08,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:15:08,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:15:08,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:15:08,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:15:08,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:15:08,274 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:15:08,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:15:08,275 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:15:08,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:15:08,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:15:08,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:15:08,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:15:08,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:15:08,276 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:15:08,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:15:08,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:15:08,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:15:08,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:15:08,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:15:08,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:15:08,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:15:08,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:15:08,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:15:08,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:08,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:15:08,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:15:08,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:15:08,281 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:15:08,282 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:15:08,282 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:15:08,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:15:08,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:15:08,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:15:08,283 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2022-11-16 12:15:08,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:15:08,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:15:08,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:15:08,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:15:08,729 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:15:08,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2022-11-16 12:15:08,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/a82309d85/dcbc9d9755b74111bb63a8101f4d0478/FLAGf6765d961 [2022-11-16 12:15:09,289 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:15:09,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2022-11-16 12:15:09,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/a82309d85/dcbc9d9755b74111bb63a8101f4d0478/FLAGf6765d961 [2022-11-16 12:15:09,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/data/a82309d85/dcbc9d9755b74111bb63a8101f4d0478 [2022-11-16 12:15:09,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:15:09,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:15:09,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:09,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:15:09,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:15:09,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fcaf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09, skipping insertion in model container [2022-11-16 12:15:09,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:15:09,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:15:09,931 WARN L229 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2022-11-16 12:15:09,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:09,969 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:15:10,031 WARN L229 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_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2022-11-16 12:15:10,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:10,049 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:15:10,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10 WrapperNode [2022-11-16 12:15:10,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:10,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:10,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:15:10,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:15:10,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,088 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2022-11-16 12:15:10,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:10,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:15:10,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:15:10,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:15:10,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:15:10,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:15:10,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:15:10,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:15:10,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (1/1) ... [2022-11-16 12:15:10,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:10,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:10,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:15:10,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:15:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:15:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:15:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:15:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-16 12:15:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:15:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:15:10,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:15:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-16 12:15:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:15:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:15:10,341 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:15:10,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:15:11,148 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:15:11,153 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:15:11,153 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:15:11,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:11 BoogieIcfgContainer [2022-11-16 12:15:11,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:15:11,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:15:11,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:15:11,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:15:11,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:15:09" (1/3) ... [2022-11-16 12:15:11,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f12d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:11, skipping insertion in model container [2022-11-16 12:15:11,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:10" (2/3) ... [2022-11-16 12:15:11,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f12d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:11, skipping insertion in model container [2022-11-16 12:15:11,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:11" (3/3) ... [2022-11-16 12:15:11,165 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2022-11-16 12:15:11,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:15:11,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:15:11,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:15:11,263 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c726103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:15:11,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:15:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:15:11,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:11,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:11,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2022-11-16 12:15:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:15:11,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213156292] [2022-11-16 12:15:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:11,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:11,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:15:11,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:15:11,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:15:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:11,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:15:11,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:11,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:15:11,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:15:11,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213156292] [2022-11-16 12:15:11,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213156292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:11,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:11,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:15:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629415887] [2022-11-16 12:15:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:11,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:15:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:15:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:15:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:15:11,654 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:11,679 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2022-11-16 12:15:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:15:11,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:15:11,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:11,690 INFO L225 Difference]: With dead ends: 64 [2022-11-16 12:15:11,691 INFO L226 Difference]: Without dead ends: 30 [2022-11-16 12:15:11,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:15:11,699 INFO L413 NwaCegarLoop]: 43 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, 43 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 [2022-11-16 12:15:11,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-16 12:15:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-16 12:15:11,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2022-11-16 12:15:11,742 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2022-11-16 12:15:11,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:11,742 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2022-11-16 12:15:11,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2022-11-16 12:15:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:15:11,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:11,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:11,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:11,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:11,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:11,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:11,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2022-11-16 12:15:11,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:15:11,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967504034] [2022-11-16 12:15:11,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:11,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:15:11,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:15:11,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:15:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:12,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:15:12,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:12,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:15:12,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:15:12,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967504034] [2022-11-16 12:15:12,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967504034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:12,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:12,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:12,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473114104] [2022-11-16 12:15:12,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:12,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:15:12,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:15:12,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:15:12,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:12,497 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-11-16 12:15:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:13,883 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2022-11-16 12:15:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:15:13,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 [2022-11-16 12:15:13,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:13,885 INFO L225 Difference]: With dead ends: 35 [2022-11-16 12:15:13,885 INFO L226 Difference]: Without dead ends: 30 [2022-11-16 12:15:13,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:15:13,887 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:13,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 123 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:15:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-16 12:15:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-16 12:15:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:13,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2022-11-16 12:15:13,892 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2022-11-16 12:15:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:13,902 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2022-11-16 12:15:13,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2022-11-16 12:15:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-11-16 12:15:13,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:15:13,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:13,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:13,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-16 12:15:14,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:14,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:14,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2022-11-16 12:15:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:15:14,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171978858] [2022-11-16 12:15:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:14,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:14,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:15:14,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:15:14,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:15:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:14,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:15:14,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:14,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:15:14,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:15:14,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171978858] [2022-11-16 12:15:14,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171978858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:14,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:14,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:15:14,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989911851] [2022-11-16 12:15:14,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:14,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:15:14,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:15:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:15:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:14,417 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:14,419 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2022-11-16 12:15:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:14,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:15:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:14,420 INFO L225 Difference]: With dead ends: 30 [2022-11-16 12:15:14,420 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:15:14,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:14,422 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:14,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-11-16 12:15:14,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:15:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:15:14,424 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) [2022-11-16 12:15:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:15:14,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-16 12:15:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:14,424 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:15:14,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:15:14,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:15:14,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:15:14,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:14,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:14,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:15:14,766 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-11-16 12:15:14,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:15:14,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:15:14,766 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2022-11-16 12:15:14,766 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2022-11-16 12:15:14,766 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2022-11-16 12:15:14,767 INFO L902 garLoopResultBuilder]: At program point L103(lines 86 104) the Hoare annotation is: true [2022-11-16 12:15:14,767 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2022-11-16 12:15:14,767 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2022-11-16 12:15:14,767 INFO L899 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2022-11-16 12:15:14,767 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2022-11-16 12:15:14,767 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2022-11-16 12:15:14,767 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-11-16 12:15:14,768 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2022-11-16 12:15:14,768 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2022-11-16 12:15:14,768 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2022-11-16 12:15:14,768 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2022-11-16 12:15:14,768 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:15:14,768 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2022-11-16 12:15:14,769 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2022-11-16 12:15:14,769 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2022-11-16 12:15:14,769 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2022-11-16 12:15:14,769 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2022-11-16 12:15:14,769 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2022-11-16 12:15:14,769 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2022-11-16 12:15:14,770 INFO L895 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2022-11-16 12:15:14,770 INFO L899 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2022-11-16 12:15:14,770 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-11-16 12:15:14,770 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2022-11-16 12:15:14,770 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:15:14,770 INFO L895 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2022-11-16 12:15:14,770 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2022-11-16 12:15:14,771 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2022-11-16 12:15:14,774 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 12:15:14,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:15:14,791 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,792 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,794 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,794 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,794 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,794 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,794 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,795 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,795 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,795 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,795 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,796 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,796 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,796 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,797 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,797 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,797 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,797 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,797 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,798 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,799 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,800 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,800 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,800 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,801 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,801 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,801 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,801 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,802 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,802 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,802 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,802 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,802 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:15:14 BoogieIcfgContainer [2022-11-16 12:15:14,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:15:14,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:15:14,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:15:14,804 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:15:14,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:11" (3/4) ... [2022-11-16 12:15:14,808 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:15:14,818 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 12:15:14,818 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-16 12:15:14,818 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:15:14,818 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:15:14,843 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x [2022-11-16 12:15:14,843 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x [2022-11-16 12:15:14,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:15:14,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:15:14,858 INFO L158 Benchmark]: Toolchain (without parser) took 5197.52ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 37.7MB in the beginning and 57.5MB in the end (delta: -19.8MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,858 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 58.7MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:15:14,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.94ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 41.1MB in the end (delta: -3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.70ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,859 INFO L158 Benchmark]: Boogie Preprocessor took 33.59ms. Allocated memory is still 58.7MB. Free memory was 39.1MB in the beginning and 37.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:15:14,860 INFO L158 Benchmark]: RCFGBuilder took 1032.56ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 37.5MB in the beginning and 63.0MB in the end (delta: -25.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,860 INFO L158 Benchmark]: TraceAbstraction took 3645.69ms. Allocated memory is still 81.8MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.7MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,861 INFO L158 Benchmark]: Witness Printer took 53.37ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 57.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:15:14,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 58.7MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.94ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 41.1MB in the end (delta: -3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.70ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.59ms. Allocated memory is still 58.7MB. Free memory was 39.1MB in the beginning and 37.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1032.56ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 37.5MB in the beginning and 63.0MB in the end (delta: -25.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3645.69ms. Allocated memory is still 81.8MB. Free memory was 62.2MB in the beginning and 60.5MB in the end (delta: 1.7MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Witness Printer took 53.37ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 57.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 77 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 100 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 168 SizeOfPredicates, 16 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2022-11-16 12:15:14,871 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,871 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,874 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,875 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,875 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 19]: Loop Invariant [2022-11-16 12:15:14,875 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,876 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,877 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,877 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,877 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,877 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,877 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,878 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,878 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,878 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,878 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-16 12:15:14,878 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 12:15:14,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a700cd9c-c6db-4ef6-96d1-c4b3449eac31/bin/uautomizer-tPACEb0tL8/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 Writing output log to file Ultimate.log Result: TRUE