./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya --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 b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:07:02,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:07:02,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:07:02,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:07:02,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:07:02,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:07:02,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:07:02,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:07:02,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:07:02,474 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:07:02,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:07:02,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:07:02,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:07:02,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:07:02,477 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:07:02,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:07:02,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:07:02,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:07:02,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:07:02,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:07:02,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:07:02,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:07:02,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:07:02,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:07:02,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:07:02,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:07:02,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:07:02,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:07:02,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:07:02,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:07:02,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:07:02,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:02,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:07:02,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:07:02,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:07:02,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:07:02,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:07:02,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:07:02,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:07:02,488 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:07:02,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:07:02,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:07:02,488 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b [2023-11-29 04:07:02,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:07:02,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:07:02,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:07:02,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:07:02,765 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:07:02,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2023-11-29 04:07:05,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:07:05,708 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:07:05,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2023-11-29 04:07:05,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/d560054fd/caa45339d51443b8aced58f11da097e8/FLAGa44cadd0d [2023-11-29 04:07:05,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/d560054fd/caa45339d51443b8aced58f11da097e8 [2023-11-29 04:07:05,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:07:05,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:07:05,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:05,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:07:05,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:07:05,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:05" (1/1) ... [2023-11-29 04:07:05,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730559ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:05, skipping insertion in model container [2023-11-29 04:07:05,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:05" (1/1) ... [2023-11-29 04:07:05,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:07:05,956 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2023-11-29 04:07:05,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:05,972 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:07:05,989 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2023-11-29 04:07:05,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:06,002 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:07:06,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06 WrapperNode [2023-11-29 04:07:06,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:06,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:06,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:07:06,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:07:06,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,039 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-29 04:07:06,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:06,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:07:06,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:07:06,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:07:06,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,071 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 04:07:06,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:07:06,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:07:06,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:07:06,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:07:06,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (1/1) ... [2023-11-29 04:07:06,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:06,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:06,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:07:06,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:07:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:07:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 04:07:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 04:07:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 04:07:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:07:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:07:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:07:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:07:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:07:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:07:06,270 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:07:06,272 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:07:06,386 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:07:06,415 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:07:06,415 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 04:07:06,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:06 BoogieIcfgContainer [2023-11-29 04:07:06,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:07:06,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:07:06,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:07:06,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:07:06,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:07:05" (1/3) ... [2023-11-29 04:07:06,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538b1d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:06, skipping insertion in model container [2023-11-29 04:07:06,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:06" (2/3) ... [2023-11-29 04:07:06,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538b1d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:06, skipping insertion in model container [2023-11-29 04:07:06,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:06" (3/3) ... [2023-11-29 04:07:06,426 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2023-11-29 04:07:06,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:07:06,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:07:06,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:07:06,503 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;@7c02dfcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:07:06,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:07:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:07:06,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:06,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:07:06,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:06,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:06,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2102692121, now seen corresponding path program 1 times [2023-11-29 04:07:06,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:06,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220439060] [2023-11-29 04:07:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:07:06,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:06,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220439060] [2023-11-29 04:07:06,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220439060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:06,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:06,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:07:06,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563485831] [2023-11-29 04:07:06,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:06,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:07:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:06,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:07:06,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:07:06,704 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 04:07:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:06,725 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2023-11-29 04:07:06,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:07:06,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-29 04:07:06,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:06,734 INFO L225 Difference]: With dead ends: 21 [2023-11-29 04:07:06,734 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 04:07:06,738 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 [2023-11-29 04:07:06,742 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:06,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 04:07:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-29 04:07:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-29 04:07:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-11-29 04:07:06,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2023-11-29 04:07:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:06,774 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-11-29 04:07:06,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 04:07:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-11-29 04:07:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:07:06,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:06,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:06,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:07:06,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:06,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:06,777 INFO L85 PathProgramCache]: Analyzing trace with hash -291149316, now seen corresponding path program 1 times [2023-11-29 04:07:06,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:06,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675517595] [2023-11-29 04:07:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:06,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:07:06,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:07:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:07:06,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:07:06,882 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:07:06,884 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:07:06,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:07:06,890 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 04:07:06,894 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:07:06,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:07:06 BoogieIcfgContainer [2023-11-29 04:07:06,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:07:06,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:07:06,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:07:06,913 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:07:06,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:06" (3/4) ... [2023-11-29 04:07:06,916 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:07:06,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:07:06,918 INFO L158 Benchmark]: Toolchain (without parser) took 1183.94ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 81.4MB in the end (delta: 40.4MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,919 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:07:06,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.76ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 124.5MB in the end (delta: -2.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.33ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,921 INFO L158 Benchmark]: Boogie Preprocessor took 48.19ms. Allocated memory is still 159.4MB. Free memory was 122.9MB in the beginning and 120.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,922 INFO L158 Benchmark]: RCFGBuilder took 326.33ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 109.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,922 INFO L158 Benchmark]: TraceAbstraction took 493.23ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 81.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 04:07:06,923 INFO L158 Benchmark]: Witness Printer took 4.90ms. Allocated memory is still 159.4MB. Free memory was 81.8MB in the beginning and 81.4MB in the end (delta: 403.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:07:06,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.76ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 124.5MB in the end (delta: -2.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.33ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.19ms. Allocated memory is still 159.4MB. Free memory was 122.9MB in the beginning and 120.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.33ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 109.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 493.23ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 81.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.90ms. Allocated memory is still 159.4MB. Free memory was 81.8MB in the beginning and 81.4MB in the end (delta: 403.9kB). 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: 42]: 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L37] float x = 0.0f / 0.0f; [L38] CALL, EXPR fabs_float(x) [L17] __uint32_t ix; VAL [\old(x)=59, x=59] [L19] ieee_float_shape_type gf_u; [L20] EXPR gf_u.value = (x) [L21] EXPR gf_u.word [L21] EXPR (ix) = gf_u.word [L18-L22] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=59, ix=7, x=59] [L24] ieee_float_shape_type sf_u; [L25] EXPR sf_u.word = (ix & 0x7fffffff) [L26] EXPR sf_u.value [L26] EXPR (x) = sf_u.value [L23-L27] { ieee_float_shape_type sf_u; sf_u.word = (ix & 0x7fffffff); (x) = sf_u.value; } VAL [\old(x)=59, ix=7, x=58] [L28] return x; [L38] RET, EXPR fabs_float(x) [L38] float res = fabs_float(x); [L41] CALL, EXPR isnan_float(res) [L14] return x != x; [L41] RET, EXPR isnan_float(res) [L41] COND TRUE !isnan_float(res) [L42] reach_error() VAL [res=58, x=59] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 3 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=11occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2023-11-29 04:07:06,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya --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 b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:07:08,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:07:09,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:07:09,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:07:09,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:07:09,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:07:09,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:07:09,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:07:09,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:07:09,119 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:07:09,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:07:09,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:07:09,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:07:09,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:07:09,122 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:07:09,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:07:09,123 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:07:09,124 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:07:09,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:07:09,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:07:09,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:07:09,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:07:09,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:07:09,127 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:07:09,127 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:07:09,128 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:07:09,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:07:09,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:07:09,129 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:07:09,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:07:09,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:07:09,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:07:09,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:07:09,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:09,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:07:09,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:07:09,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:07:09,132 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:07:09,132 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:07:09,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:07:09,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:07:09,133 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:07:09,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:07:09,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:07:09,134 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:07:09,134 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b [2023-11-29 04:07:09,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:07:09,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:07:09,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:07:09,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:07:09,477 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:07:09,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2023-11-29 04:07:12,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:07:12,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:07:12,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2023-11-29 04:07:12,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/8c4e0a947/162a9cab8c774bac8c87de56626b2541/FLAGcd976da43 [2023-11-29 04:07:12,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/data/8c4e0a947/162a9cab8c774bac8c87de56626b2541 [2023-11-29 04:07:12,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:07:12,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:07:12,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:12,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:07:12,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:07:12,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183f0435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12, skipping insertion in model container [2023-11-29 04:07:12,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:07:12,795 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2023-11-29 04:07:12,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:12,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:07:12,840 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_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2023-11-29 04:07:12,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:12,864 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:07:12,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12 WrapperNode [2023-11-29 04:07:12,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:12,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:12,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:07:12,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:07:12,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,912 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-29 04:07:12,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:12,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:07:12,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:07:12,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:07:12,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,950 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 04:07:12,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:07:12,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:07:12,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:07:12,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:07:12,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (1/1) ... [2023-11-29 04:07:12,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:13,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:07:13,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:07:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:07:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:07:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:07:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 04:07:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:07:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-29 04:07:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-29 04:07:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-29 04:07:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:07:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:07:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 04:07:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:07:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:07:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-29 04:07:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-29 04:07:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-29 04:07:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:07:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:07:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 04:07:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:07:13,167 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:07:13,170 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:07:13,322 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:07:13,361 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:07:13,362 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 04:07:13,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:13 BoogieIcfgContainer [2023-11-29 04:07:13,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:07:13,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:07:13,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:07:13,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:07:13,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:07:12" (1/3) ... [2023-11-29 04:07:13,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6202ae3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:13, skipping insertion in model container [2023-11-29 04:07:13,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:12" (2/3) ... [2023-11-29 04:07:13,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6202ae3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:13, skipping insertion in model container [2023-11-29 04:07:13,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:13" (3/3) ... [2023-11-29 04:07:13,373 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2023-11-29 04:07:13,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:07:13,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:07:13,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:07:13,490 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;@378fe802, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:07:13,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:07:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:07:13,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:13,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:07:13,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:13,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:13,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2102692121, now seen corresponding path program 1 times [2023-11-29 04:07:13,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:07:13,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712896108] [2023-11-29 04:07:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:13,527 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 [2023-11-29 04:07:13,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:07:13,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 04:07:13,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:07:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:13,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:07:13,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:07:13,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:13,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:07:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712896108] [2023-11-29 04:07:13,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712896108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:13,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:13,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:07:13,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694910973] [2023-11-29 04:07:13,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:13,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:07:13,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:07:13,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:07:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:07:13,695 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 04:07:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:13,720 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2023-11-29 04:07:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:07:13,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-29 04:07:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:13,731 INFO L225 Difference]: With dead ends: 21 [2023-11-29 04:07:13,731 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 04:07:13,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:07:13,738 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:13,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 04:07:13,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-29 04:07:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-29 04:07:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-11-29 04:07:13,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2023-11-29 04:07:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:13,774 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-11-29 04:07:13,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 04:07:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-11-29 04:07:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:07:13,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:13,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:13,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:07:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:07:13,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:13,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -291149316, now seen corresponding path program 1 times [2023-11-29 04:07:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:07:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306109107] [2023-11-29 04:07:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:13,982 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 [2023-11-29 04:07:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:07:13,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 04:07:13,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:07:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:14,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:07:14,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:07:14,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:14,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:07:14,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306109107] [2023-11-29 04:07:14,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306109107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:14,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:07:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470132770] [2023-11-29 04:07:14,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:14,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:07:14,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:07:14,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:07:14,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:07:14,305 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 04:07:14,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:14,378 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2023-11-29 04:07:14,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:07:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-11-29 04:07:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:14,379 INFO L225 Difference]: With dead ends: 9 [2023-11-29 04:07:14,379 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:07:14,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:07:14,381 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 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 [2023-11-29 04:07:14,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:07:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:07:14,383 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) [2023-11-29 04:07:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:07:14,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-11-29 04:07:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:14,384 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:07:14,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 04:07:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:07:14,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:07:14,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:07:14,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:07:14,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 04:07:14,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:07:14,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:07:14,623 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed. [2023-11-29 04:07:14,623 INFO L895 garLoopResultBuilder]: At program point L23-1(lines 23 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_fabs_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_fabs_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_fabs_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2023-11-29 04:07:14,623 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2023-11-29 04:07:14,624 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-29 04:07:14,624 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:07:14,624 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 31 47) no Hoare annotation was computed. [2023-11-29 04:07:14,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2023-11-29 04:07:14,624 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2023-11-29 04:07:14,625 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2023-11-29 04:07:14,625 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed. [2023-11-29 04:07:14,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 04:07:14,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:07:14,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated [2023-11-29 04:07:14,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~ix~0[31:31], ~ix~0[30:23], ~ix~0[22:0]) == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated [2023-11-29 04:07:14,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated [2023-11-29 04:07:14,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:07:14 BoogieIcfgContainer [2023-11-29 04:07:14,643 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:07:14,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:07:14,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:07:14,644 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:07:14,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:13" (3/4) ... [2023-11-29 04:07:14,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:07:14,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-29 04:07:14,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 04:07:14,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 04:07:14,656 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:07:14,742 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:07:14,742 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:07:14,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:07:14,743 INFO L158 Benchmark]: Toolchain (without parser) took 2185.55ms. Allocated memory is still 98.6MB. Free memory was 75.6MB in the beginning and 38.3MB in the end (delta: 37.3MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,743 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:07:14,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.55ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 64.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 62.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,745 INFO L158 Benchmark]: Boogie Preprocessor took 61.80ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 60.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,745 INFO L158 Benchmark]: RCFGBuilder took 386.22ms. Allocated memory is still 98.6MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,746 INFO L158 Benchmark]: TraceAbstraction took 1277.53ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 42.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,746 INFO L158 Benchmark]: Witness Printer took 98.53ms. Allocated memory is still 98.6MB. Free memory was 42.2MB in the beginning and 38.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:07:14,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.55ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 64.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 62.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.80ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 60.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.22ms. Allocated memory is still 98.6MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1277.53ms. Allocated memory is still 98.6MB. Free memory was 46.6MB in the beginning and 42.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 98.53ms. Allocated memory is still 98.6MB. Free memory was 42.2MB in the beginning and 38.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp~32(~ix~0[31:31], ~ix~0[30:23], ~ix~0[22:0]) == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~32(currentRoundingMode, ~Pluszero~32(), ~Pluszero~32())) could not be translated * 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: 42]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 28 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 5 QuantifiedInterpolants, 56 SizeOfPredicates, 10 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-29 04:07:14,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506ac88c-bb1f-4f33-8e64-4a492a0c1cc3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE