./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ --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 b5f03ef8422f7b7708e900a4e8a8defb18a5d0c6a337d34a875dec58ac2c0349 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:26:48,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:26:48,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:26:48,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:26:48,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:26:48,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:26:48,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:26:48,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:26:48,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:26:48,206 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:26:48,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:26:48,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:26:48,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:26:48,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:26:48,209 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:26:48,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:26:48,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:26:48,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:26:48,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:26:48,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:26:48,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:26:48,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:26:48,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:26:48,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:26:48,216 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:26:48,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:26:48,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:26:48,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:26:48,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:26:48,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:26:48,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:26:48,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:48,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:26:48,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:26:48,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:26:48,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:26:48,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:26:48,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:26:48,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:26:48,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:26:48,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:26:48,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:26:48,224 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5f03ef8422f7b7708e900a4e8a8defb18a5d0c6a337d34a875dec58ac2c0349 [2023-11-23 22:26:48,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:26:48,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:26:48,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:26:48,591 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:26:48,593 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:26:48,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-11-23 22:26:51,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:26:51,891 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:26:51,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-11-23 22:26:51,901 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/8a64c4c3f/f071b8da24df427d9fb74ffef42f85de/FLAG799ebf411 [2023-11-23 22:26:51,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/8a64c4c3f/f071b8da24df427d9fb74ffef42f85de [2023-11-23 22:26:51,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:26:51,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:26:51,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:51,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:26:51,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:26:51,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:51" (1/1) ... [2023-11-23 22:26:51,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701f9961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:51, skipping insertion in model container [2023-11-23 22:26:51,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:51" (1/1) ... [2023-11-23 22:26:51,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:26:52,171 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-11-23 22:26:52,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:52,188 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:26:52,225 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-11-23 22:26:52,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:52,264 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:26:52,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52 WrapperNode [2023-11-23 22:26:52,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:52,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:52,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:26:52,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:26:52,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,330 INFO L138 Inliner]: procedures = 18, calls = 47, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 188 [2023-11-23 22:26:52,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:52,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:26:52,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:26:52,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:26:52,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,354 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,390 INFO L189 HeapSplitter]: Split 25 memory accesses to 10 slices as follows [2, 2, 3, 4, 4, 2, 2, 2, 2, 2] [2023-11-23 22:26:52,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:26:52,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:26:52,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:26:52,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:26:52,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (1/1) ... [2023-11-23 22:26:52,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:52,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:52,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:26:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:26:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:26:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:26:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:26:52,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:26:52,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 22:26:52,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 22:26:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:26:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:26:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:26:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:26:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:26:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:26:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:26:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:26:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:26:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 22:26:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 22:26:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-23 22:26:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-23 22:26:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-23 22:26:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-23 22:26:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-23 22:26:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-23 22:26:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-23 22:26:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-23 22:26:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-23 22:26:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-23 22:26:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-23 22:26:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-23 22:26:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-23 22:26:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-23 22:26:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-23 22:26:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-23 22:26:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-23 22:26:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-23 22:26:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-23 22:26:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-11-23 22:26:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:26:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:26:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:26:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:26:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:26:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:26:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:26:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:26:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:26:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:26:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 22:26:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 22:26:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-23 22:26:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-11-23 22:26:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-11-23 22:26:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-11-23 22:26:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2023-11-23 22:26:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:26:52,677 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:26:52,678 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:26:52,976 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:26:53,037 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:26:53,038 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-23 22:26:53,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:53 BoogieIcfgContainer [2023-11-23 22:26:53,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:26:53,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:26:53,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:26:53,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:26:53,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:26:51" (1/3) ... [2023-11-23 22:26:53,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28af940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:53, skipping insertion in model container [2023-11-23 22:26:53,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:52" (2/3) ... [2023-11-23 22:26:53,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28af940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:53, skipping insertion in model container [2023-11-23 22:26:53,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:53" (3/3) ... [2023-11-23 22:26:53,081 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833.c [2023-11-23 22:26:53,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:26:53,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:26:53,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:26:53,184 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;@2eeec9d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:26:53,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:26:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 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) [2023-11-23 22:26:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 22:26:53,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:53,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:53,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:26:53,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:53,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1951911629, now seen corresponding path program 1 times [2023-11-23 22:26:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:53,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271697746] [2023-11-23 22:26:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:53,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:53,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271697746] [2023-11-23 22:26:53,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271697746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:53,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:53,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174258504] [2023-11-23 22:26:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:53,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:26:53,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:53,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:26:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:26:53,492 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 22:26:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:53,540 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2023-11-23 22:26:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:26:53,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2023-11-23 22:26:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:53,556 INFO L225 Difference]: With dead ends: 71 [2023-11-23 22:26:53,556 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 22:26:53,560 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 [2023-11-23 22:26:53,566 INFO L413 NwaCegarLoop]: 43 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, 43 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 [2023-11-23 22:26:53,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 22:26:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-23 22:26:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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) [2023-11-23 22:26:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2023-11-23 22:26:53,629 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 8 [2023-11-23 22:26:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:53,630 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2023-11-23 22:26:53,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 22:26:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-23 22:26:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:26:53,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:53,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:53,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:26:53,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:26:53,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:53,635 INFO L85 PathProgramCache]: Analyzing trace with hash 742634164, now seen corresponding path program 1 times [2023-11-23 22:26:53,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:53,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525178653] [2023-11-23 22:26:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:53,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:26:53,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:26:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:26:53,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:26:53,883 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:26:53,886 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:26:53,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:26:53,895 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 22:26:53,900 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:26:53,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:26:53 BoogieIcfgContainer [2023-11-23 22:26:53,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:26:53,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:26:53,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:26:53,965 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:26:53,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:53" (3/4) ... [2023-11-23 22:26:53,968 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:26:53,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:26:53,974 INFO L158 Benchmark]: Toolchain (without parser) took 2052.57ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 93.6MB in the beginning and 141.9MB in the end (delta: -48.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,974 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:26:53,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.28ms. Allocated memory is still 138.4MB. Free memory was 93.6MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.14ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,976 INFO L158 Benchmark]: Boogie Preprocessor took 111.25ms. Allocated memory is still 138.4MB. Free memory was 78.9MB in the beginning and 75.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,977 INFO L158 Benchmark]: RCFGBuilder took 594.80ms. Allocated memory is still 138.4MB. Free memory was 75.2MB in the beginning and 54.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,977 INFO L158 Benchmark]: TraceAbstraction took 888.00ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 108.0MB in the beginning and 142.9MB in the end (delta: -34.9MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,978 INFO L158 Benchmark]: Witness Printer took 10.30ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 141.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:26:53,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.28ms. Allocated memory is still 138.4MB. Free memory was 93.6MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.14ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.25ms. Allocated memory is still 138.4MB. Free memory was 78.9MB in the beginning and 75.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 594.80ms. Allocated memory is still 138.4MB. Free memory was 75.2MB in the beginning and 54.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 888.00ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 108.0MB in the beginning and 142.9MB in the end (delta: -34.9MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 10.30ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 141.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L128] float x = -1.0f / 0.0f; [L129] CALL, EXPR __ieee754_expf(x) [L36] float y, hi, lo, c, t; [L37] __int32_t k = 0, xsb, sx; [L38] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000007, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007] [L41] ieee_float_shape_type gf_u; [L42] EXPR gf_u.value = (x) [L43] EXPR gf_u.word [L43] EXPR (sx) = gf_u.word [L40-L44] { ieee_float_shape_type gf_u; gf_u.value = (x); (sx) = gf_u.word; } VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000007, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007] [L45] xsb = (sx >> 31) & 1 [L46] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000007, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007, xsb=0] [L48] COND TRUE ((hx) > 0x7f800000L) [L49] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000007, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007, xsb=0] [L129] RET, EXPR __ieee754_expf(x) [L129] float res = __ieee754_expf(x); [L132] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000008, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007] [L132] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L132] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L133] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000008, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000007] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 43 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, 43 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=36occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2023-11-23 22:26:54,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ --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 b5f03ef8422f7b7708e900a4e8a8defb18a5d0c6a337d34a875dec58ac2c0349 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:26:56,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:26:56,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:26:56,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:26:56,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:26:56,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:26:56,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:26:56,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:26:56,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:26:56,927 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:26:56,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:26:56,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:26:56,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:26:56,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:26:56,930 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:26:56,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:26:56,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:26:56,932 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:26:56,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:26:56,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:26:56,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:26:56,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:26:56,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:26:56,935 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:26:56,935 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:26:56,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:26:56,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:26:56,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:26:56,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:26:56,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:26:56,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:26:56,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:26:56,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:26:56,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:56,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:26:56,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:26:56,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:26:56,941 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:26:56,941 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:26:56,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:26:56,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:26:56,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:26:56,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:26:56,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:26:56,943 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:26:56,943 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5f03ef8422f7b7708e900a4e8a8defb18a5d0c6a337d34a875dec58ac2c0349 [2023-11-23 22:26:57,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:26:57,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:26:57,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:26:57,379 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:26:57,379 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:26:57,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-11-23 22:27:00,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:27:00,855 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:27:00,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-11-23 22:27:00,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/3b5ec3d02/cb6367cf365046a085ca3b39cc42f688/FLAGdea246dae [2023-11-23 22:27:00,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/data/3b5ec3d02/cb6367cf365046a085ca3b39cc42f688 [2023-11-23 22:27:00,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:27:00,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:27:00,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:00,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:27:00,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:27:00,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:00" (1/1) ... [2023-11-23 22:27:00,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9cafb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:00, skipping insertion in model container [2023-11-23 22:27:00,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:27:00" (1/1) ... [2023-11-23 22:27:00,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:27:01,220 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-11-23 22:27:01,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:01,255 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:27:01,322 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_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-11-23 22:27:01,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:27:01,351 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:27:01,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01 WrapperNode [2023-11-23 22:27:01,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:27:01,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:01,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:27:01,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:27:01,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,446 INFO L138 Inliner]: procedures = 21, calls = 47, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 188 [2023-11-23 22:27:01,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:27:01,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:27:01,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:27:01,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:27:01,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,486 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,521 INFO L189 HeapSplitter]: Split 25 memory accesses to 10 slices as follows [2, 2, 3, 4, 4, 2, 2, 2, 2, 2] [2023-11-23 22:27:01,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:27:01,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:27:01,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:27:01,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:27:01,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (1/1) ... [2023-11-23 22:27:01,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:01,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:01,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:27:01,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:27:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:27:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-11-23 22:27:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-11-23 22:27:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-11-23 22:27:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-11-23 22:27:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-11-23 22:27:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:27:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-23 22:27:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-23 22:27:01,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-23 22:27:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-23 22:27:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-23 22:27:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-23 22:27:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:27:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-23 22:27:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-23 22:27:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-23 22:27:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-23 22:27:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-23 22:27:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-23 22:27:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-11-23 22:27:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:27:01,876 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:27:01,880 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:27:11,350 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:27:11,388 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:27:11,389 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-23 22:27:11,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:11 BoogieIcfgContainer [2023-11-23 22:27:11,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:27:11,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:27:11,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:27:11,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:27:11,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:27:00" (1/3) ... [2023-11-23 22:27:11,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c542040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:11, skipping insertion in model container [2023-11-23 22:27:11,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:27:01" (2/3) ... [2023-11-23 22:27:11,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c542040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:27:11, skipping insertion in model container [2023-11-23 22:27:11,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:11" (3/3) ... [2023-11-23 22:27:11,399 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833.c [2023-11-23 22:27:11,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:27:11,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:27:11,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:27:11,480 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;@58aaa98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:27:11,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:27:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 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) [2023-11-23 22:27:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 22:27:11,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:11,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:11,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:27:11,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:11,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1951911629, now seen corresponding path program 1 times [2023-11-23 22:27:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:27:11,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769367890] [2023-11-23 22:27:11,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:11,514 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 [2023-11-23 22:27:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:27:11,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:27:11,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:12,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:27:12,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:12,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:12,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:12,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:27:12,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769367890] [2023-11-23 22:27:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769367890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:12,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:12,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:27:12,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910801568] [2023-11-23 22:27:12,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:12,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:27:12,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:27:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:27:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:27:12,314 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 35 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 22:27:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:12,373 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2023-11-23 22:27:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:27:12,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2023-11-23 22:27:12,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:12,386 INFO L225 Difference]: With dead ends: 71 [2023-11-23 22:27:12,386 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 22:27:12,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:27:12,396 INFO L413 NwaCegarLoop]: 43 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, 43 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 [2023-11-23 22:27:12,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 22:27:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-23 22:27:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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) [2023-11-23 22:27:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2023-11-23 22:27:12,446 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 8 [2023-11-23 22:27:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:12,446 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2023-11-23 22:27:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 22:27:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-23 22:27:12,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:27:12,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:12,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:12,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 22:27:12,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:12,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:27:12,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:12,660 INFO L85 PathProgramCache]: Analyzing trace with hash 742634164, now seen corresponding path program 1 times [2023-11-23 22:27:12,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:27:12,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803124218] [2023-11-23 22:27:12,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:12,661 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 [2023-11-23 22:27:12,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:27:12,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:27:12,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:13,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:27:13,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:13,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:13,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:27:13,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803124218] [2023-11-23 22:27:13,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803124218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:13,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:13,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:27:13,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131186230] [2023-11-23 22:27:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:13,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:27:13,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:27:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:27:13,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:27:13,680 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:14,107 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2023-11-23 22:27:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:27:14,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-23 22:27:14,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:14,108 INFO L225 Difference]: With dead ends: 42 [2023-11-23 22:27:14,108 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 22:27:14,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:14,111 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:14,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 22:27:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 22:27:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-11-23 22:27:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-23 22:27:14,115 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2023-11-23 22:27:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:14,116 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-23 22:27:14,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-23 22:27:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:27:14,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:14,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:14,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:14,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:14,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:27:14,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1514823339, now seen corresponding path program 1 times [2023-11-23 22:27:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:27:14,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352551510] [2023-11-23 22:27:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:14,320 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 [2023-11-23 22:27:14,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:27:14,321 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:27:14,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 22:27:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:14,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:27:14,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:15,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 22:27:15,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-23 22:27:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:15,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:15,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:27:15,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352551510] [2023-11-23 22:27:15,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352551510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:15,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:15,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:27:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768404615] [2023-11-23 22:27:15,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:15,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:15,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:27:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:15,574 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:16,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:16,095 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2023-11-23 22:27:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:27:16,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 22:27:16,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:16,096 INFO L225 Difference]: With dead ends: 17 [2023-11-23 22:27:16,096 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 22:27:16,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:16,098 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:16,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:27:16,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 22:27:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 22:27:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2023-11-23 22:27:16,103 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2023-11-23 22:27:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:16,103 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2023-11-23 22:27:16,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-11-23 22:27:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 22:27:16,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:16,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:16,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:16,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:16,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:27:16,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash 378051228, now seen corresponding path program 1 times [2023-11-23 22:27:16,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:27:16,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181016946] [2023-11-23 22:27:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:16,307 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 [2023-11-23 22:27:16,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:27:16,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:27:16,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 22:27:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:16,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 22:27:16,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:17,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 22:27:17,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-23 22:27:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:27:18,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:18,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:27:18,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181016946] [2023-11-23 22:27:18,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181016946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:18,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:18,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:27:18,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310229117] [2023-11-23 22:27:18,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:18,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:27:18,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:27:18,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:27:18,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:18,269 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:19,915 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-11-23 22:27:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:27:19,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 22:27:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:19,917 INFO L225 Difference]: With dead ends: 14 [2023-11-23 22:27:19,917 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:27:19,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:27:19,919 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:19,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 16 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:27:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:27:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:27:19,920 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) [2023-11-23 22:27:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:27:19,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-23 22:27:19,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:19,921 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:27:19,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:19,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:27:19,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:27:19,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:27:19,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-23 22:27:20,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:27:20,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:27:20,428 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 53) no Hoare annotation was computed. [2023-11-23 22:27:20,429 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 80) no Hoare annotation was computed. [2023-11-23 22:27:20,429 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 122 138) no Hoare annotation was computed. [2023-11-23 22:27:20,429 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 72) no Hoare annotation was computed. [2023-11-23 22:27:20,429 INFO L899 garLoopResultBuilder]: For program point L69-2(lines 57 72) no Hoare annotation was computed. [2023-11-23 22:27:20,429 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 71) no Hoare annotation was computed. [2023-11-23 22:27:20,430 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2023-11-23 22:27:20,430 INFO L899 garLoopResultBuilder]: For program point __ieee754_expf_returnLabel#1(lines 35 108) no Hoare annotation was computed. [2023-11-23 22:27:20,430 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:27:20,430 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2023-11-23 22:27:20,430 INFO L895 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2023-11-23 22:27:20,431 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-11-23 22:27:20,431 INFO L895 garLoopResultBuilder]: At program point L88-1(lines 88 92) the Hoare annotation is: false [2023-11-23 22:27:20,431 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 88 92) no Hoare annotation was computed. [2023-11-23 22:27:20,431 INFO L899 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2023-11-23 22:27:20,431 INFO L895 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17#1| (exists ((|ULTIMATE.start___ieee754_expf_~sx~0#1| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_expf_~sx~0#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_main_~res~0#1| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))))) (exists ((|ULTIMATE.start___ieee754_expf_~sx~0#1| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_expf_~sx~0#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) |ULTIMATE.start___signbit_float_~x#1|))) (exists ((|ULTIMATE.start___ieee754_expf_~sx~0#1| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_expf_~sx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_expf_~sx~0#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) |ULTIMATE.start___ieee754_expf_#res#1|)))) [2023-11-23 22:27:20,432 INFO L899 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2023-11-23 22:27:20,432 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 107) no Hoare annotation was computed. [2023-11-23 22:27:20,432 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2023-11-23 22:27:20,432 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2023-11-23 22:27:20,432 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 44) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_expf_~x#1|))) [2023-11-23 22:27:20,432 INFO L899 garLoopResultBuilder]: For program point L40-3(lines 40 44) no Hoare annotation was computed. [2023-11-23 22:27:20,433 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 72) no Hoare annotation was computed. [2023-11-23 22:27:20,433 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2023-11-23 22:27:20,433 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2023-11-23 22:27:20,433 INFO L899 garLoopResultBuilder]: For program point L132-2(lines 132 135) no Hoare annotation was computed. [2023-11-23 22:27:20,433 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:27:20,434 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 67) no Hoare annotation was computed. [2023-11-23 22:27:20,434 INFO L899 garLoopResultBuilder]: For program point L58-2(lines 58 67) no Hoare annotation was computed. [2023-11-23 22:27:20,434 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 51) no Hoare annotation was computed. [2023-11-23 22:27:20,434 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 87) no Hoare annotation was computed. [2023-11-23 22:27:20,434 INFO L895 garLoopResultBuilder]: At program point L83-2(lines 83 87) the Hoare annotation is: false [2023-11-23 22:27:20,434 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2023-11-23 22:27:20,435 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2023-11-23 22:27:20,435 INFO L895 garLoopResultBuilder]: At program point L101-1(lines 101 105) the Hoare annotation is: false [2023-11-23 22:27:20,435 INFO L899 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2023-11-23 22:27:20,438 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 22:27:20,440 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:27:20,450 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 22:27:20,451 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~x) could not be translated [2023-11-23 22:27:20,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated [2023-11-23 22:27:20,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~res~0 == ~to_fp~32(currentRoundingMode, ~Pluszero~64())) could not be translated [2023-11-23 22:27:20,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~to_fp~32(currentRoundingMode, ~Pluszero~64()) == ~x) could not be translated [2023-11-23 22:27:20,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~to_fp~32(currentRoundingMode, ~Pluszero~64()) == #res) could not be translated [2023-11-23 22:27:20,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:27:20 BoogieIcfgContainer [2023-11-23 22:27:20,456 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:27:20,457 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:27:20,457 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:27:20,457 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:27:20,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:27:11" (3/4) ... [2023-11-23 22:27:20,460 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:27:20,470 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-23 22:27:20,470 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 22:27:20,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:27:20,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:27:20,583 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:27:20,584 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:27:20,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:27:20,585 INFO L158 Benchmark]: Toolchain (without parser) took 19688.98ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 44.6MB in the end (delta: 8.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,585 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:27:20,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.42ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 39.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.76ms. Allocated memory is still 77.6MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:27:20,586 INFO L158 Benchmark]: Boogie Preprocessor took 141.11ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 53.0MB in the end (delta: -15.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,587 INFO L158 Benchmark]: RCFGBuilder took 9796.69ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 48.9MB in the end (delta: 4.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,587 INFO L158 Benchmark]: TraceAbstraction took 9064.18ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 50.3MB in the end (delta: -2.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,588 INFO L158 Benchmark]: Witness Printer took 127.52ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:27:20,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 54.5MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.42ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 39.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.76ms. Allocated memory is still 77.6MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 141.11ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 53.0MB in the end (delta: -15.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 9796.69ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 48.9MB in the end (delta: 4.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9064.18ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 50.3MB in the end (delta: -2.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 127.52ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~res~0 == ~to_fp~32(currentRoundingMode, ~Pluszero~64())) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~to_fp~32(currentRoundingMode, ~Pluszero~64()) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start___ieee754_expf_~sx~0#1 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(ULTIMATE.start___ieee754_expf_~sx~0#1[31:31], ULTIMATE.start___ieee754_expf_~sx~0#1[30:23], ULTIMATE.start___ieee754_expf_~sx~0#1[22:0]) == ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()) && ~to_fp~32(currentRoundingMode, ~Pluszero~64()) == #res) 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: 133]: 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, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 60 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 86 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 13 QuantifiedInterpolants, 430 SizeOfPredicates, 30 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-23 22:27:20,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d0e023-04fb-409b-aa5f-cbb391fac6f3/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE