./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:12,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:12,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:03:12,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:12,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:12,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:12,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:12,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:12,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:12,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:12,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:12,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:12,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:12,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:12,785 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:12,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:12,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:12,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:12,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:12,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:12,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:12,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:12,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:12,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:12,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:12,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:12,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:12,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:12,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:12,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:12,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:12,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:12,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:12,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:12,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:12,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:12,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:03:12,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:12,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:12,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:12,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:12,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:12,797 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2023-11-26 12:03:13,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:13,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:13,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:13,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:13,207 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:13,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-26 12:03:16,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:16,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:16,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-26 12:03:16,748 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/18ea52468/d20658046ce24003b10febff1760e6f4/FLAG9a69405dd [2023-11-26 12:03:16,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/18ea52468/d20658046ce24003b10febff1760e6f4 [2023-11-26 12:03:16,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:16,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:16,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:16,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:16,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:16,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:16" (1/1) ... [2023-11-26 12:03:16,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44efd588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:16, skipping insertion in model container [2023-11-26 12:03:16,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:16" (1/1) ... [2023-11-26 12:03:16,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:17,080 WARN L240 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-26 12:03:17,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:17,108 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:17,165 WARN L240 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-26 12:03:17,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:17,187 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:17,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17 WrapperNode [2023-11-26 12:03:17,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:17,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:17,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:17,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:17,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,271 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2023-11-26 12:03:17,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:17,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:17,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:17,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:17,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,298 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,320 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2023-11-26 12:03:17,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,333 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:17,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:17,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:17,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:17,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (1/1) ... [2023-11-26 12:03:17,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:17,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:17,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:17,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:03:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:03:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:03:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:03:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 12:03:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 12:03:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 12:03:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 12:03:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:03:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:03:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:03:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:03:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 12:03:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 12:03:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 12:03:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 12:03:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:03:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:03:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:03:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:03:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:17,592 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:17,594 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:17,964 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:17,992 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:17,993 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 12:03:17,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:17 BoogieIcfgContainer [2023-11-26 12:03:17,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:17,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:17,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:17,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:18,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:16" (1/3) ... [2023-11-26 12:03:18,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdfc54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:18, skipping insertion in model container [2023-11-26 12:03:18,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:17" (2/3) ... [2023-11-26 12:03:18,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdfc54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:18, skipping insertion in model container [2023-11-26 12:03:18,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:17" (3/3) ... [2023-11-26 12:03:18,003 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2023-11-26 12:03:18,024 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:18,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:03:18,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:18,084 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=LoopHeads, 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;@6bbaa2a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:18,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:03:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.6875) internal successors, (81), 49 states have internal predecessors, (81), 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) [2023-11-26 12:03:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:03:18,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:18,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:18,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:18,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1754991599, now seen corresponding path program 1 times [2023-11-26 12:03:18,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:18,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169667735] [2023-11-26 12:03:18,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:18,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:18,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:18,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169667735] [2023-11-26 12:03:18,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169667735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:18,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:18,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:18,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940268544] [2023-11-26 12:03:18,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:18,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:03:18,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:03:18,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:03:18,327 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.6875) internal successors, (81), 49 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2023-11-26 12:03:18,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:18,360 INFO L93 Difference]: Finished difference Result 99 states and 161 transitions. [2023-11-26 12:03:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:03:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 [2023-11-26 12:03:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:18,374 INFO L225 Difference]: With dead ends: 99 [2023-11-26 12:03:18,374 INFO L226 Difference]: Without dead ends: 48 [2023-11-26 12:03:18,377 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 [2023-11-26 12:03:18,381 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:18,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:03:18,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-26 12:03:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-26 12:03:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 47 states have internal predecessors, (71), 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) [2023-11-26 12:03:18,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 71 transitions. [2023-11-26 12:03:18,439 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 71 transitions. Word has length 11 [2023-11-26 12:03:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:18,440 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 71 transitions. [2023-11-26 12:03:18,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2023-11-26 12:03:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2023-11-26 12:03:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:03:18,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:18,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:18,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:18,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:18,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2141285760, now seen corresponding path program 1 times [2023-11-26 12:03:18,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:18,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211351837] [2023-11-26 12:03:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:18,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:18,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211351837] [2023-11-26 12:03:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211351837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:18,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:18,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:03:18,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323657786] [2023-11-26 12:03:18,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:18,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:03:18,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:18,671 INFO L87 Difference]: Start difference. First operand 48 states and 71 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-26 12:03:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:18,761 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2023-11-26 12:03:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:03:18,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-26 12:03:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:18,766 INFO L225 Difference]: With dead ends: 96 [2023-11-26 12:03:18,766 INFO L226 Difference]: Without dead ends: 57 [2023-11-26 12:03:18,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:18,768 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:18,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 176 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:03:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-26 12:03:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2023-11-26 12:03:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 51 states have internal predecessors, (75), 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) [2023-11-26 12:03:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2023-11-26 12:03:18,779 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 12 [2023-11-26 12:03:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:18,779 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2023-11-26 12:03:18,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-26 12:03:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2023-11-26 12:03:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 12:03:18,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:18,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:18,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:18,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:18,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:18,782 INFO L85 PathProgramCache]: Analyzing trace with hash 757082708, now seen corresponding path program 1 times [2023-11-26 12:03:18,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:18,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792785303] [2023-11-26 12:03:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:18,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:18,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:18,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:18,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:03:18,894 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:03:18,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:03:18,900 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 12:03:18,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:18,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-26 12:03:18,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:18 BoogieIcfgContainer [2023-11-26 12:03:18,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:18,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:18,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:18,929 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:18,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:17" (3/4) ... [2023-11-26 12:03:18,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:03:18,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:18,934 INFO L158 Benchmark]: Toolchain (without parser) took 2147.64ms. Allocated memory is still 176.2MB. Free memory was 146.9MB in the beginning and 88.9MB in the end (delta: 58.0MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,934 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:18,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.28ms. Allocated memory is still 176.2MB. Free memory was 146.2MB in the beginning and 135.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.48ms. Allocated memory is still 176.2MB. Free memory was 135.0MB in the beginning and 132.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,936 INFO L158 Benchmark]: Boogie Preprocessor took 64.52ms. Allocated memory is still 176.2MB. Free memory was 132.9MB in the beginning and 130.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,936 INFO L158 Benchmark]: RCFGBuilder took 646.80ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 129.3MB in the end (delta: 791.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,937 INFO L158 Benchmark]: TraceAbstraction took 931.94ms. Allocated memory is still 176.2MB. Free memory was 128.8MB in the beginning and 88.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-26 12:03:18,937 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 176.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:18,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.28ms. Allocated memory is still 176.2MB. Free memory was 146.2MB in the beginning and 135.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.48ms. Allocated memory is still 176.2MB. Free memory was 135.0MB in the beginning and 132.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.52ms. Allocated memory is still 176.2MB. Free memory was 132.9MB in the beginning and 130.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 646.80ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 129.3MB in the end (delta: 791.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 931.94ms. Allocated memory is still 176.2MB. Free memory was 128.8MB in the beginning and 88.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 176.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 93]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45. Possible FailurePath: [L88] double x = 0.0; [L89] CALL, EXPR round_double(x) [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; VAL [\old(x)=0, x=0] [L23] ieee_double_shape_type ew_u; [L24] EXPR ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] EXPR (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] EXPR (lsw) = ew_u.parts.lsw [L22-L27] { ieee_double_shape_type ew_u; ew_u.value = (x); (msw) = ew_u.parts.msw; (lsw) = ew_u.parts.lsw; } VAL [\old(x)=0, lsw=2146435073, msw=2146435072, x=0] [L28] EXPR msw & 0x7ff00000 VAL [\old(x)=0, lsw=2146435073, msw=2146435072, x=0] [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=0, exponent_less_1023=1024, lsw=2146435073, msw=2146435072, x=0] [L43] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=0, exponent_less_1023=1024, lsw=2146435073, msw=2146435072, x=0] [L44] COND TRUE exponent_less_1023 == 1024 [L45] return x + x; VAL [\old(x)=0, exponent_less_1023=1024, lsw=2146435073, msw=2146435072, x=0] [L89] RET, EXPR round_double(x) [L89] double res = round_double(x); [L92] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=6441402378, x=0] [L92] EXPR res == 0.0 && __signbit_double(res) == 0 [L92] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L93] reach_error() VAL [res=6441402378, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 136 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 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 [2023-11-26 12:03:18,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:21,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:21,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:03:21,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:21,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:21,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:21,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:21,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:21,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:21,876 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:21,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:21,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:21,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:21,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:21,880 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:21,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:21,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:21,883 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:21,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:21,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:21,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:21,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:21,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:21,887 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:03:21,887 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:03:21,888 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:03:21,888 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:21,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:21,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:21,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:21,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:21,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:21,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:21,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:21,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:21,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:21,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:21,897 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:03:21,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:03:21,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:21,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:21,899 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:21,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:21,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:21,900 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:03:21,901 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2023-11-26 12:03:22,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:22,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:22,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:22,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:22,377 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:22,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-26 12:03:25,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:25,951 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:25,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-26 12:03:25,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/729042f69/7974b09554e8469680f8093546392e3c/FLAGfe30ba51c [2023-11-26 12:03:25,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/data/729042f69/7974b09554e8469680f8093546392e3c [2023-11-26 12:03:25,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:25,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:26,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:26,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:26,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:26,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:25" (1/1) ... [2023-11-26 12:03:26,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30dce065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26, skipping insertion in model container [2023-11-26 12:03:26,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:25" (1/1) ... [2023-11-26 12:03:26,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:26,317 WARN L240 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-26 12:03:26,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:26,346 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:26,415 WARN L240 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_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-26 12:03:26,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:26,450 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:26,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26 WrapperNode [2023-11-26 12:03:26,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:26,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:26,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:26,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:26,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,532 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2023-11-26 12:03:26,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:26,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:26,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:26,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:26,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,585 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2023-11-26 12:03:26,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:26,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:26,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:26,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:26,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (1/1) ... [2023-11-26 12:03:26,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:26,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-26 12:03:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-26 12:03:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-26 12:03:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-26 12:03:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-26 12:03:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-26 12:03:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-26 12:03:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-26 12:03:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:03:26,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:03:26,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:03:26,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:03:26,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:26,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:03:26,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:03:26,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:03:26,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:03:26,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:26,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:03:26,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:03:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:03:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:03:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:26,827 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:26,830 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:27,258 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:27,297 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:27,297 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 12:03:27,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:27 BoogieIcfgContainer [2023-11-26 12:03:27,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:27,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:27,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:27,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:27,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:25" (1/3) ... [2023-11-26 12:03:27,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d8611b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:27, skipping insertion in model container [2023-11-26 12:03:27,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:26" (2/3) ... [2023-11-26 12:03:27,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d8611b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:27, skipping insertion in model container [2023-11-26 12:03:27,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:27" (3/3) ... [2023-11-26 12:03:27,309 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2023-11-26 12:03:27,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:27,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:03:27,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:27,407 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=LoopHeads, 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;@3b055781, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:27,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:03:27,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 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) [2023-11-26 12:03:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:03:27,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:27,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:27,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:27,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 983063678, now seen corresponding path program 1 times [2023-11-26 12:03:27,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:27,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785538735] [2023-11-26 12:03:27,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:27,454 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 [2023-11-26 12:03:27,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:27,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:03:27,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:27,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:03:27,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:27,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:27,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:27,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785538735] [2023-11-26 12:03:27,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785538735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:27,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:27,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:27,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8203792] [2023-11-26 12:03:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:27,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:03:27,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:27,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:03:27,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:03:27,665 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:27,711 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2023-11-26 12:03:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:03:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 12:03:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:27,724 INFO L225 Difference]: With dead ends: 53 [2023-11-26 12:03:27,725 INFO L226 Difference]: Without dead ends: 25 [2023-11-26 12:03:27,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:03:27,733 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:27,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:03:27,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-26 12:03:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-26 12:03:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2023-11-26 12:03:27,782 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 10 [2023-11-26 12:03:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:27,783 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2023-11-26 12:03:27,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-11-26 12:03:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:03:27,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:27,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:27,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 12:03:27,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:27,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:27,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:27,991 INFO L85 PathProgramCache]: Analyzing trace with hash -885713015, now seen corresponding path program 1 times [2023-11-26 12:03:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:27,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43543220] [2023-11-26 12:03:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:27,996 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 [2023-11-26 12:03:27,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:27,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:03:28,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:03:28,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:28,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:28,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:28,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43543220] [2023-11-26 12:03:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43543220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:28,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:28,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:03:28,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826391914] [2023-11-26 12:03:28,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:28,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:03:28,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:28,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:03:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:03:28,403 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 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) [2023-11-26 12:03:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:28,620 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2023-11-26 12:03:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 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 [2023-11-26 12:03:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:28,625 INFO L225 Difference]: With dead ends: 37 [2023-11-26 12:03:28,626 INFO L226 Difference]: Without dead ends: 19 [2023-11-26 12:03:28,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:03:28,628 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:28,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:03:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-26 12:03:28,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-26 12:03:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-26 12:03:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-26 12:03:28,634 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2023-11-26 12:03:28,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:28,634 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-11-26 12:03:28,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 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) [2023-11-26 12:03:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-26 12:03:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 12:03:28,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:28,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:28,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:28,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:28,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:28,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:28,837 INFO L85 PathProgramCache]: Analyzing trace with hash 527470868, now seen corresponding path program 1 times [2023-11-26 12:03:28,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859505245] [2023-11-26 12:03:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:28,838 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 [2023-11-26 12:03:28,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:28,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:03:28,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:03:28,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:29,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:29,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:29,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859505245] [2023-11-26 12:03:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859505245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:29,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:29,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:03:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800360147] [2023-11-26 12:03:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:29,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:03:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:29,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:03:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:03:29,129 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:29,322 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-11-26 12:03:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:03:29,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 12:03:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:29,324 INFO L225 Difference]: With dead ends: 22 [2023-11-26 12:03:29,324 INFO L226 Difference]: Without dead ends: 19 [2023-11-26 12:03:29,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:03:29,326 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:29,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 32 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:03:29,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-26 12:03:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-26 12:03:29,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2023-11-26 12:03:29,334 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2023-11-26 12:03:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:29,334 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2023-11-26 12:03:29,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,335 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2023-11-26 12:03:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:03:29,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:29,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:29,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:29,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:29,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:29,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:29,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1903412056, now seen corresponding path program 1 times [2023-11-26 12:03:29,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:29,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155018758] [2023-11-26 12:03:29,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:29,542 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 [2023-11-26 12:03:29,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:29,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:03:29,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 (5)] Waiting until timeout for monitored process [2023-11-26 12:03:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:29,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 12:03:29,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:29,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-11-26 12:03:29,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:03:29,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2023-11-26 12:03:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:30,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:30,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:30,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155018758] [2023-11-26 12:03:30,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155018758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:30,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:30,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:03:30,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694980276] [2023-11-26 12:03:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:30,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:03:30,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:03:30,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:03:30,375 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:31,264 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2023-11-26 12:03:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:03:31,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-26 12:03:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:31,265 INFO L225 Difference]: With dead ends: 19 [2023-11-26 12:03:31,265 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:03:31,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:03:31,267 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:31,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 35 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:03:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:03:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:03:31,269 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) [2023-11-26 12:03:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:03:31,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-26 12:03:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:31,270 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:03:31,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:31,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:03:31,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:03:31,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:03:31,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:31,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:03:31,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:03:31,606 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-11-26 12:03:31,607 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 47) no Hoare annotation was computed. [2023-11-26 12:03:31,607 INFO L899 garLoopResultBuilder]: For program point round_double_returnLabel#1(lines 19 66) no Hoare annotation was computed. [2023-11-26 12:03:31,607 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 80 98) no Hoare annotation was computed. [2023-11-26 12:03:31,607 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 33) no Hoare annotation was computed. [2023-11-26 12:03:31,607 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 58) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2023-11-26 12:03:31,608 INFO L899 garLoopResultBuilder]: For program point L54-2(lines 54 55) no Hoare annotation was computed. [2023-11-26 12:03:31,609 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:03:31,609 INFO L899 garLoopResultBuilder]: For program point L71-1(lines 71 75) no Hoare annotation was computed. [2023-11-26 12:03:31,610 INFO L895 garLoopResultBuilder]: At program point L71-2(lines 71 75) the Hoare annotation is: (and (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|))) (= (let ((.cse0 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start_main_~res~0#1|))) |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_round_double_~msw~0#1_19| (_ BitVec 32))) (= (let ((.cse1 (concat (bvand |v_ULTIMATE.start_round_double_~msw~0#1_19| (_ bv2147483648 32)) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) |ULTIMATE.start_round_double_#res#1|)) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|))) (= (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) |ULTIMATE.start_round_double_#res#1|))) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64))) (and (= (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))) |ULTIMATE.start___signbit_double_~x#1|) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|)))))) [2023-11-26 12:03:31,610 INFO L899 garLoopResultBuilder]: For program point L71-3(lines 71 75) no Hoare annotation was computed. [2023-11-26 12:03:31,610 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 42) no Hoare annotation was computed. [2023-11-26 12:03:31,610 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-26 12:03:31,611 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2023-11-26 12:03:31,611 INFO L895 garLoopResultBuilder]: At program point L59-1(lines 59 64) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (and (= (bvashr (bvand ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) (_ bv2146435072 32)) (_ bv20 32)) (bvadd (_ bv1023 32) |ULTIMATE.start_round_double_~exponent_less_1023~0#1|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|)) (_ +zero 11 53)))) (= (_ +zero 11 53) |ULTIMATE.start_round_double_~x#1|) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) |ULTIMATE.start_round_double_~msw~0#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|)) (_ +zero 11 53)))) (= |ULTIMATE.start_round_double_~lsw~0#1| (_ bv0 32))) [2023-11-26 12:03:31,611 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 95) no Hoare annotation was computed. [2023-11-26 12:03:31,612 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2023-11-26 12:03:31,612 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2023-11-26 12:03:31,612 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start_round_double_~x#1|) [2023-11-26 12:03:31,612 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2023-11-26 12:03:31,613 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-11-26 12:03:31,613 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 58) no Hoare annotation was computed. [2023-11-26 12:03:31,616 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 12:03:31,618 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:31,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == ~res~0) could not be translated [2023-11-26 12:03:31,631 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-26 12:03:31,632 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_round_double_~msw~0#1_19 : bv32 :: ~fp~64((~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[63:63], (~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[62:52], (~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[51:0]) == #res) could not be translated [2023-11-26 12:03:31,632 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == #res) could not be translated [2023-11-26 12:03:31,632 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == ~x && ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) could not be translated [2023-11-26 12:03:31,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: ~bvashr~32(~bvand~32(v_skolemized_q#valueAsBitvector_6[63:32], 2146435072bv32), 20bv32) == ~bvadd~32(1023bv32, ~exponent_less_1023~0) && ~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~Pluszero~64()) could not be translated [2023-11-26 12:03:31,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-26 12:03:31,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: v_skolemized_q#valueAsBitvector_6[63:32] == ~msw~0 && ~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~Pluszero~64()) could not be translated [2023-11-26 12:03:31,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-26 12:03:31,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:31 BoogieIcfgContainer [2023-11-26 12:03:31,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:31,638 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:31,638 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:31,639 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:31,639 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:27" (3/4) ... [2023-11-26 12:03:31,641 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:03:31,650 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-26 12:03:31,651 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-26 12:03:31,651 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:03:31,652 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:03:31,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:03:31,757 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:03:31,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:31,758 INFO L158 Benchmark]: Toolchain (without parser) took 5760.10ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 84.6MB in the beginning and 80.5MB in the end (delta: 4.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,758 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 77.6MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:31,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.98ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 72.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.74ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 70.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,760 INFO L158 Benchmark]: Boogie Preprocessor took 76.35ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 67.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,760 INFO L158 Benchmark]: RCFGBuilder took 687.47ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 81.4MB in the end (delta: -14.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,761 INFO L158 Benchmark]: TraceAbstraction took 4337.25ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 80.6MB in the beginning and 85.6MB in the end (delta: -4.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,761 INFO L158 Benchmark]: Witness Printer took 118.97ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:31,763 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 77.6MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.98ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 72.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.74ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 70.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.35ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 67.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 687.47ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 81.4MB in the end (delta: -14.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4337.25ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 80.6MB in the beginning and 85.6MB in the end (delta: -4.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Witness Printer took 118.97ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == ~res~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_round_double_~msw~0#1_19 : bv32 :: ~fp~64((~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[63:63], (~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[62:52], (~bvand~32(v_ULTIMATE.start_round_double_~msw~0#1_19, 2147483648bv32) ++ 0bv32)[51:0]) == #res) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0]) && ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == #res) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_10 : bv64 :: ~fp~64((v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_10[63:32] ++ v_arrayElimCell_1)[51:0]) == ~x && ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: ~bvashr~32(~bvand~32(v_skolemized_q#valueAsBitvector_6[63:32], 2146435072bv32), 20bv32) == ~bvadd~32(1023bv32, ~exponent_less_1023~0) && ~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~Pluszero~64()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: v_skolemized_q#valueAsBitvector_6[63:32] == ~msw~0 && ~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~Pluszero~64()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 * 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: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 58 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 157 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 24 QuantifiedInterpolants, 518 SizeOfPredicates, 26 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 71]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (lsw == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-26 12:03:31,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502721a0-6d5f-4dec-87f9-ff9f7bc0b79e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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