./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 527bcce2 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 20:59:58,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:58,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:59:58,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:58,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:58,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:58,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:58,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:58,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:58,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:58,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:58,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:58,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:58,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:58,786 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:58,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:58,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:58,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:58,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:58,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:58,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:58,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:58,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:58,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:58,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:58,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:58,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:58,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:58,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:58,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:58,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:58,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:58,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:58,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:58,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:58,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:58,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:58,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:58,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:58,807 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:58,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:58,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:58,808 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2023-11-21 20:59:59,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:59,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:59,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:59,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:59,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:59,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-21 21:00:02,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:02,649 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:02,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-21 21:00:02,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/a7aa91fa3/f6cf56561432409daf088376fe979418/FLAG27eaeb2c6 [2023-11-21 21:00:02,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/a7aa91fa3/f6cf56561432409daf088376fe979418 [2023-11-21 21:00:02,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:02,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:02,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:02,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:02,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:02,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:02" (1/1) ... [2023-11-21 21:00:02,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9a37c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:02, skipping insertion in model container [2023-11-21 21:00:02,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:02" (1/1) ... [2023-11-21 21:00:02,728 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:02,954 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-21 21:00:02,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:02,978 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:03,011 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-21 21:00:03,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:03,029 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:03,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03 WrapperNode [2023-11-21 21:00:03,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:03,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:03,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:03,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:03,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,079 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2023-11-21 21:00:03,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:03,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:03,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:03,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:03,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,099 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,126 INFO L187 HeapSplitter]: Split 10 memory accesses to 4 slices as follows [2, 2, 3, 3] [2023-11-21 21:00:03,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:03,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:03,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:03,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:03,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (1/1) ... [2023-11-21 21:00:03,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:03,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:03,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:03,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-21 21:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 21:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-21 21:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-21 21:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-21 21:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-21 21:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 21:00:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:03,346 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:03,349 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:03,765 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:04,096 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:04,097 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 21:00:04,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:04 BoogieIcfgContainer [2023-11-21 21:00:04,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:04,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:04,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:04,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:04,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:02" (1/3) ... [2023-11-21 21:00:04,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166842e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:04, skipping insertion in model container [2023-11-21 21:00:04,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:03" (2/3) ... [2023-11-21 21:00:04,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166842e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:04, skipping insertion in model container [2023-11-21 21:00:04,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:04" (3/3) ... [2023-11-21 21:00:04,112 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2023-11-21 21:00:04,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:04,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:00:04,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:04,191 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;@3f45e9ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:04,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:00:04,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 21:00:04,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:04,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:04,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:04,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash -261349908, now seen corresponding path program 1 times [2023-11-21 21:00:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595157311] [2023-11-21 21:00:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:04,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:04,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595157311] [2023-11-21 21:00:04,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595157311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:04,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:04,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854056792] [2023-11-21 21:00:04,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:04,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 21:00:04,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 21:00:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:00:04,448 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:04,514 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-21 21:00:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 21:00:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-21 21:00:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:04,527 INFO L225 Difference]: With dead ends: 43 [2023-11-21 21:00:04,527 INFO L226 Difference]: Without dead ends: 20 [2023-11-21 21:00:04,531 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 [2023-11-21 21:00:04,537 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:04,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:00:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-21 21:00:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-21 21:00:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2023-11-21 21:00:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-11-21 21:00:04,578 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2023-11-21 21:00:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:04,579 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-21 21:00:04,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:04,580 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 21:00:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 21:00:04,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:04,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:04,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:04,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:04,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 386279195, now seen corresponding path program 1 times [2023-11-21 21:00:04,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:04,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139376052] [2023-11-21 21:00:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:04,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:04,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:04,769 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:04,771 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:00:04,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:04,777 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 21:00:04,781 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:04,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:04 BoogieIcfgContainer [2023-11-21 21:00:04,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:04,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:04,818 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:04,818 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:04,819 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:04" (3/4) ... [2023-11-21 21:00:04,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:00:04,824 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:04,826 INFO L158 Benchmark]: Toolchain (without parser) took 2136.41ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 124.5MB in the beginning and 150.5MB in the end (delta: -26.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,827 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 169.9MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:04,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.94ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 112.8MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,835 INFO L158 Benchmark]: Boogie Preprocessor took 70.99ms. Allocated memory is still 169.9MB. Free memory was 110.7MB in the beginning and 108.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,835 INFO L158 Benchmark]: RCFGBuilder took 941.81ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 108.3MB in the beginning and 179.8MB in the end (delta: -71.4MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,836 INFO L158 Benchmark]: TraceAbstraction took 715.30ms. Allocated memory is still 211.8MB. Free memory was 178.8MB in the beginning and 151.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 21:00:04,836 INFO L158 Benchmark]: Witness Printer took 7.42ms. Allocated memory is still 211.8MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:04,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 169.9MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.94ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 112.8MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 110.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.99ms. Allocated memory is still 169.9MB. Free memory was 110.7MB in the beginning and 108.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 941.81ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 108.3MB in the beginning and 179.8MB in the end (delta: -71.4MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * TraceAbstraction took 715.30ms. Allocated memory is still 211.8MB. Free memory was 178.8MB in the beginning and 151.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 7.42ms. Allocated memory is still 211.8MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 bitwiseAnd at line 28, 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=3275751424, msw=-1019215873, x=0] [L28] EXPR msw & 0x7ff00000 [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=0, exponent_less_1023=52, lsw=3275751424, msw=-1019215873, x=0] [L43] COND TRUE exponent_less_1023 > 51 [L44] COND FALSE !(exponent_less_1023 == 1024) [L47] return x; VAL [\old(x)=0, \result=0, exponent_less_1023=52, lsw=3275751424, msw=-1019215873, 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=0, 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=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 21:00:04,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 21:00:07,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:07,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 21:00:07,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:07,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:07,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:07,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:07,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:07,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:07,753 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:07,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:07,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:07,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:07,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:07,756 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:07,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:07,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:07,758 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:00:07,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:00:07,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:07,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:07,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:07,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:07,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:00:07,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:00:07,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:00:07,762 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:00:07,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:07,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:07,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:07,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:07,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:07,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:07,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:07,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:07,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:07,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:07,766 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:00:07,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:00:07,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:07,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:07,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:07,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:07,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:07,768 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:00:07,768 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d77f189616851dfc2a9becddf3926b3a4d1b6826934ea34b3559c7d217e0a16 [2023-11-21 21:00:08,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:08,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:08,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:08,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:08,185 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:08,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-21 21:00:11,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:11,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:11,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c [2023-11-21 21:00:11,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/bf18761fe/e55ee6a76e7d40878ff873a6d27346ba/FLAGd5368a01b [2023-11-21 21:00:11,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/data/bf18761fe/e55ee6a76e7d40878ff873a6d27346ba [2023-11-21 21:00:11,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:11,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:11,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:11,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:11,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:11,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b893d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11, skipping insertion in model container [2023-11-21 21:00:11,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:11,957 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-21 21:00:11,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:11,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:12,046 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_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/sv-benchmarks/c/float-newlib/double_req_bl_1032a.c[2282,2295] [2023-11-21 21:00:12,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:12,078 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:12,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12 WrapperNode [2023-11-21 21:00:12,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:12,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:12,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:12,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:12,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,154 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2023-11-21 21:00:12,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:12,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:12,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:12,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:12,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,185 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,214 INFO L187 HeapSplitter]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2] [2023-11-21 21:00:12,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:12,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:12,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:12,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:12,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (1/1) ... [2023-11-21 21:00:12,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:12,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:12,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-21 21:00:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-21 21:00:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-21 21:00:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-21 21:00:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-21 21:00:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-21 21:00:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-21 21:00:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-21 21:00:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:00:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 21:00:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-21 21:00:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-21 21:00:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-21 21:00:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-21 21:00:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-21 21:00:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-21 21:00:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-21 21:00:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-21 21:00:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-21 21:00:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-21 21:00:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:12,547 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:12,550 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:12,977 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:13,040 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:13,040 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 21:00:13,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:13 BoogieIcfgContainer [2023-11-21 21:00:13,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:13,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:13,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:13,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:13,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:11" (1/3) ... [2023-11-21 21:00:13,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10470a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:13, skipping insertion in model container [2023-11-21 21:00:13,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:12" (2/3) ... [2023-11-21 21:00:13,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10470a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:13, skipping insertion in model container [2023-11-21 21:00:13,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:13" (3/3) ... [2023-11-21 21:00:13,053 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c [2023-11-21 21:00:13,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:13,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:00:13,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:13,135 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;@5958b7b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:13,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:00:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 21:00:13,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:13,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:13,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:13,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1810710899, now seen corresponding path program 1 times [2023-11-21 21:00:13,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:13,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930672903] [2023-11-21 21:00:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:13,170 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 [2023-11-21 21:00:13,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:13,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:13,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:13,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 21:00:13,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:13,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:13,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:13,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930672903] [2023-11-21 21:00:13,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930672903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:13,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:13,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:13,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328909856] [2023-11-21 21:00:13,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:13,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 21:00:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 21:00:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:00:13,424 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:13,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:13,496 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-21 21:00:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 21:00:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-21 21:00:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:13,509 INFO L225 Difference]: With dead ends: 43 [2023-11-21 21:00:13,509 INFO L226 Difference]: Without dead ends: 20 [2023-11-21 21:00:13,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:00:13,517 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:13,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:00:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-21 21:00:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-21 21:00:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2023-11-21 21:00:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-11-21 21:00:13,558 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2023-11-21 21:00:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:13,560 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-21 21:00:13,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 21:00:13,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 21:00:13,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:13,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:13,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:13,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:13,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:13,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:13,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1732446686, now seen corresponding path program 1 times [2023-11-21 21:00:13,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:13,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089173623] [2023-11-21 21:00:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:13,773 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 [2023-11-21 21:00:13,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:13,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:13,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:13,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 21:00:13,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:14,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:14,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:14,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089173623] [2023-11-21 21:00:14,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089173623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:14,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:14,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:14,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173552643] [2023-11-21 21:00:14,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:14,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:00:14,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:14,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:00:14,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:14,150 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2023-11-21 21:00:14,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:14,332 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-21 21:00:14,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:00:14,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 [2023-11-21 21:00:14,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:14,334 INFO L225 Difference]: With dead ends: 31 [2023-11-21 21:00:14,334 INFO L226 Difference]: Without dead ends: 17 [2023-11-21 21:00:14,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:00:14,337 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:14,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:00:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-21 21:00:14,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-21 21:00:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-21 21:00:14,343 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2023-11-21 21:00:14,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:14,344 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-21 21:00:14,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2023-11-21 21:00:14,345 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-21 21:00:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 21:00:14,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:14,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:14,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:14,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:14,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:14,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2055333174, now seen corresponding path program 1 times [2023-11-21 21:00:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549453718] [2023-11-21 21:00:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:14,553 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 [2023-11-21 21:00:14,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:14,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:14,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:14,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 21:00:14,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:14,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:14,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549453718] [2023-11-21 21:00:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549453718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 21:00:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585575652] [2023-11-21 21:00:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:14,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:00:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:14,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:00:14,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:00:14,997 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-11-21 21:00:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:15,270 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2023-11-21 21:00:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 21:00:15,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2023-11-21 21:00:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:15,272 INFO L225 Difference]: With dead ends: 20 [2023-11-21 21:00:15,272 INFO L226 Difference]: Without dead ends: 17 [2023-11-21 21:00:15,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-21 21:00:15,274 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:15,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:00:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-21 21:00:15,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-21 21:00:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-11-21 21:00:15,280 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2023-11-21 21:00:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:15,280 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-11-21 21:00:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-11-21 21:00:15,281 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-11-21 21:00:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 21:00:15,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:15,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:15,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:15,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:15,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:15,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:15,495 INFO L85 PathProgramCache]: Analyzing trace with hash 874110278, now seen corresponding path program 1 times [2023-11-21 21:00:15,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:15,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676907161] [2023-11-21 21:00:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:15,497 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 [2023-11-21 21:00:15,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:15,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:15,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:15,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 21:00:15,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:15,902 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 [2023-11-21 21:00:15,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 21:00:15,918 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 [2023-11-21 21:00:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:16,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:16,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:16,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676907161] [2023-11-21 21:00:16,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676907161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:16,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:16,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-21 21:00:16,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876090268] [2023-11-21 21:00:16,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 21:00:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:16,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 21:00:16,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 21:00:16,349 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:17,179 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2023-11-21 21:00:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 21:00:17,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-21 21:00:17,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:17,179 INFO L225 Difference]: With dead ends: 17 [2023-11-21 21:00:17,179 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 21:00:17,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-21 21:00:17,181 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:17,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 18 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 21:00:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 21:00:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 21:00:17,183 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) [2023-11-21 21:00:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 21:00:17,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-21 21:00:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:17,183 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:00:17,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 21:00:17,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 21:00:17,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:00:17,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:17,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:17,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 21:00:17,512 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-11-21 21:00:17,512 INFO L899 garLoopResultBuilder]: For program point round_double_returnLabel#1(lines 19 66) no Hoare annotation was computed. [2023-11-21 21:00:17,512 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 80 98) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 58) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 21:00:17,513 INFO L899 garLoopResultBuilder]: For program point L71-1(lines 71 75) no Hoare annotation was computed. [2023-11-21 21:00:17,514 INFO L895 garLoopResultBuilder]: At program point L71-2(lines 71 75) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_round_double_#res#1|) |ULTIMATE.start_main_#t~short10#1| (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) (_ +zero 11 53)) (= (let ((.cse0 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start___signbit_double_~x#1|))) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) (_ +zero 11 53)) (= |ULTIMATE.start_main_~res~0#1| (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))))) [2023-11-21 21:00:17,514 INFO L899 garLoopResultBuilder]: For program point L71-3(lines 71 75) no Hoare annotation was computed. [2023-11-21 21:00:17,514 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 42) no Hoare annotation was computed. [2023-11-21 21:00:17,514 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-11-21 21:00:17,514 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2023-11-21 21:00:17,515 INFO L895 garLoopResultBuilder]: At program point L59-1(lines 59 64) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_round_double_~x#1|) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|) |ULTIMATE.start_round_double_~msw~0#1|) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|))))) (= (bvashr (bvand (_ bv2146435072 32) |ULTIMATE.start_round_double_~msw~0#1|) (_ bv20 32)) (bvadd (_ bv1023 32) |ULTIMATE.start_round_double_~exponent_less_1023~0#1|)) (= |ULTIMATE.start_round_double_~lsw~0#1| (_ bv0 32))) [2023-11-21 21:00:17,515 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 95) no Hoare annotation was computed. [2023-11-21 21:00:17,515 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2023-11-21 21:00:17,515 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2023-11-21 21:00:17,515 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start_round_double_~x#1|) [2023-11-21 21:00:17,515 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2023-11-21 21:00:17,516 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-11-21 21:00:17,516 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 58) no Hoare annotation was computed. [2023-11-21 21:00:17,519 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-21 21:00:17,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:17,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 21:00:17,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-21 21:00:17,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_11 : bv64 :: ~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~Pluszero~64() && ~fp~64((v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[51:0]) == ~x) could not be translated [2023-11-21 21:00:17,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_11 : bv64 :: ~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~Pluszero~64() && ~res~0 == ~fp~64((v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[51:0])) could not be translated [2023-11-21 21:00:17,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 21:00:17,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_8 : bv64 :: v_skolemized_q#valueAsBitvector_8[63:32] == ~msw~0 && ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0])) could not be translated [2023-11-21 21:00:17,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 21:00:17,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:17 BoogieIcfgContainer [2023-11-21 21:00:17,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:17,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:17,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:17,554 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:17,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:13" (3/4) ... [2023-11-21 21:00:17,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 21:00:17,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-21 21:00:17,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 21:00:17,571 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 21:00:17,571 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 21:00:17,687 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:00:17,688 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 21:00:17,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:17,689 INFO L158 Benchmark]: Toolchain (without parser) took 6027.93ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 63.6MB in the beginning and 65.8MB in the end (delta: -2.1MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,690 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.5MB in the end (delta: 143.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.37ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 51.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.50ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,691 INFO L158 Benchmark]: Boogie Preprocessor took 112.73ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 46.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,691 INFO L158 Benchmark]: RCFGBuilder took 772.16ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 52.2MB in the end (delta: -5.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,692 INFO L158 Benchmark]: TraceAbstraction took 4507.81ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 51.5MB in the beginning and 70.9MB in the end (delta: -19.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,692 INFO L158 Benchmark]: Witness Printer took 134.96ms. Allocated memory is still 119.5MB. Free memory was 70.9MB in the beginning and 65.8MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:17,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.5MB in the end (delta: 143.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.37ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 51.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.50ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.73ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 46.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.16ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 52.2MB in the end (delta: -5.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4507.81ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 51.5MB in the beginning and 70.9MB in the end (delta: -19.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 134.96ms. Allocated memory is still 119.5MB. Free memory was 70.9MB in the beginning and 65.8MB 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: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_11 : bv64 :: ~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~Pluszero~64() && ~fp~64((v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[51:0]) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : bv32, v_skolemized_q#valueAsBitvector_11 : bv64 :: ~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~Pluszero~64() && ~res~0 == ~fp~64((v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[63:63], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[62:52], (v_skolemized_q#valueAsBitvector_11[63:32] ++ v_arrayElimCell_1)[51:0])) 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_8 : bv64 :: v_skolemized_q#valueAsBitvector_8[63:32] == ~msw~0 && ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0])) 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 40 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 97 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 20 QuantifiedInterpolants, 506 SizeOfPredicates, 32 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 57 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: ((((2146435072 & msw) >> 20) == ((1023 + exponent_less_1023) % 4294967296)) && (lsw == 0)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 21:00:17,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf88be7-49e0-40c7-b7b4-bb8beefbe2f9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE