./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:49:52,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:49:52,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:49:52,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:49:52,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:49:52,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:49:52,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:49:52,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:49:52,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:49:52,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:49:52,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:49:52,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:49:52,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:49:52,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:49:52,519 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:49:52,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:49:52,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:49:52,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:49:52,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:49:52,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:49:52,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:49:52,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:49:52,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:49:52,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:49:52,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:49:52,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:49:52,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:49:52,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:49:52,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:49:52,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:49:52,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:49:52,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:49:52,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:52,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:49:52,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:49:52,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:49:52,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:49:52,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:49:52,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:49:52,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:49:52,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:49:52,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:49:52,531 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 [2024-10-11 00:49:52,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:49:52,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:49:52,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:49:52,835 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:49:52,836 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:49:52,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2024-10-11 00:49:54,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:49:54,508 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:49:54,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2024-10-11 00:49:54,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ba9bb4e06/5709598d27344af2a7dfb9e7a1ca9784/FLAG201182e45 [2024-10-11 00:49:54,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ba9bb4e06/5709598d27344af2a7dfb9e7a1ca9784 [2024-10-11 00:49:54,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:49:54,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:49:54,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:54,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:49:54,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:49:54,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac8c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54, skipping insertion in model container [2024-10-11 00:49:54,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:49:54,796 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2024-10-11 00:49:54,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:54,819 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:49:54,861 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2024-10-11 00:49:54,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:54,882 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:49:54,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54 WrapperNode [2024-10-11 00:49:54,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:54,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:54,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:49:54,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:49:54,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,939 INFO L138 Inliner]: procedures = 19, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 218 [2024-10-11 00:49:54,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:54,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:49:54,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:49:54,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:49:54,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,986 INFO L175 MemorySlicer]: Split 27 memory accesses to 11 slices as follows [2, 2, 2, 7, 2, 2, 2, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0]. The 13 writes are split as follows [0, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1]. [2024-10-11 00:49:54,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:54,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:49:55,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:49:55,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:49:55,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:49:55,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (1/1) ... [2024-10-11 00:49:55,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:55,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:49:55,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:49:55,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:49:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:49:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:49:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:49:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:49:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 00:49:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 00:49:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 00:49:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 00:49:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:49:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:49:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-11 00:49:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-11 00:49:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-11 00:49:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-11 00:49:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-11 00:49:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 00:49:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 00:49:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-11 00:49:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-11 00:49:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-11 00:49:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-11 00:49:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-11 00:49:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:49:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:49:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-11 00:49:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 00:49:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-11 00:49:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:49:55,294 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:49:55,297 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:49:55,606 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-10-11 00:49:55,606 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:49:55,652 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:49:55,653 INFO L314 CfgBuilder]: Removed 18 assume(true) statements. [2024-10-11 00:49:55,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:55 BoogieIcfgContainer [2024-10-11 00:49:55,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:49:55,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:49:55,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:49:55,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:49:55,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:49:54" (1/3) ... [2024-10-11 00:49:55,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da72670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:55, skipping insertion in model container [2024-10-11 00:49:55,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:54" (2/3) ... [2024-10-11 00:49:55,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da72670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:55, skipping insertion in model container [2024-10-11 00:49:55,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:55" (3/3) ... [2024-10-11 00:49:55,662 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2024-10-11 00:49:55,696 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:49:55,697 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:49:55,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:49:55,773 INFO L333 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, 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;@6efd106a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:49:55,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:49:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 47 states have internal predecessors, (76), 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) [2024-10-11 00:49:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:49:55,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:55,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:55,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:55,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:55,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1307475184, now seen corresponding path program 1 times [2024-10-11 00:49:55,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:49:55,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664269083] [2024-10-11 00:49:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:49:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:55,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:49:55,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664269083] [2024-10-11 00:49:55,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664269083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:55,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:55,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:49:55,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874723456] [2024-10-11 00:49:55,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:55,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:49:55,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:49:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:49:56,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:49:56,004 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 47 states have internal predecessors, (76), 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 6.5) internal successors, (13), 2 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) [2024-10-11 00:49:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:56,030 INFO L93 Difference]: Finished difference Result 95 states and 151 transitions. [2024-10-11 00:49:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:49:56,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2024-10-11 00:49:56,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:56,039 INFO L225 Difference]: With dead ends: 95 [2024-10-11 00:49:56,040 INFO L226 Difference]: Without dead ends: 46 [2024-10-11 00:49:56,042 INFO L431 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 [2024-10-11 00:49:56,046 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:56,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:49:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-11 00:49:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-11 00:49:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 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) [2024-10-11 00:49:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2024-10-11 00:49:56,079 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 13 [2024-10-11 00:49:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:56,080 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2024-10-11 00:49:56,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2024-10-11 00:49:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2024-10-11 00:49:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 00:49:56,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:56,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:56,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:49:56,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:56,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -714970513, now seen corresponding path program 1 times [2024-10-11 00:49:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:49:56,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912498511] [2024-10-11 00:49:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:49:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:56,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:49:56,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912498511] [2024-10-11 00:49:56,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912498511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:56,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:56,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 00:49:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926229907] [2024-10-11 00:49:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:56,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 00:49:56,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:49:56,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 00:49:56,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:49:56,295 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:56,323 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2024-10-11 00:49:56,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 00:49:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 00:49:56,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:56,325 INFO L225 Difference]: With dead ends: 49 [2024-10-11 00:49:56,325 INFO L226 Difference]: Without dead ends: 46 [2024-10-11 00:49:56,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:49:56,328 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:56,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:49:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-11 00:49:56,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-11 00:49:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 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) [2024-10-11 00:49:56,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2024-10-11 00:49:56,337 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 16 [2024-10-11 00:49:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:56,337 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-10-11 00:49:56,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2024-10-11 00:49:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 00:49:56,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:56,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:56,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:49:56,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:56,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash 85700729, now seen corresponding path program 1 times [2024-10-11 00:49:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:49:56,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907069580] [2024-10-11 00:49:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:49:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:49:56,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:49:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:49:56,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:49:56,528 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:49:56,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:49:56,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 00:49:56,536 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 00:49:56,565 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:49:56,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:49:56 BoogieIcfgContainer [2024-10-11 00:49:56,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:49:56,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:49:56,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:49:56,572 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:49:56,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:55" (3/4) ... [2024-10-11 00:49:56,575 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:49:56,576 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:49:56,577 INFO L158 Benchmark]: Toolchain (without parser) took 2032.16ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 116.9MB in the beginning and 171.2MB in the end (delta: -54.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,577 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 174.1MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:49:56,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.32ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 102.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.71ms. Allocated memory is still 174.1MB. Free memory was 102.7MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,581 INFO L158 Benchmark]: Boogie Preprocessor took 100.66ms. Allocated memory is still 174.1MB. Free memory was 100.7MB in the beginning and 97.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,582 INFO L158 Benchmark]: RCFGBuilder took 612.07ms. Allocated memory is still 174.1MB. Free memory was 97.0MB in the beginning and 71.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,582 INFO L158 Benchmark]: TraceAbstraction took 914.40ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 70.8MB in the beginning and 172.2MB in the end (delta: -101.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:49:56,583 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 247.5MB. Free memory was 172.2MB in the beginning and 171.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:56,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 174.1MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.32ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 102.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.71ms. Allocated memory is still 174.1MB. Free memory was 102.7MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.66ms. Allocated memory is still 174.1MB. Free memory was 100.7MB in the beginning and 97.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 612.07ms. Allocated memory is still 174.1MB. Free memory was 97.0MB in the beginning and 71.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 914.40ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 70.8MB in the beginning and 172.2MB in the end (delta: -101.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 247.5MB. Free memory was 172.2MB in the beginning and 171.2MB 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: 112]: 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 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106. Possible FailurePath: [L14] static const float one_modf = 1.0; [L106] float x = -1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [iptr={6:0}, one_modf=1] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [i0=1065353215, iptr={6:0}, j0=-1, one_modf=1, x=6434062358] [L25] COND TRUE j0 < 23 VAL [one_modf=1] [L26] COND TRUE j0 < 0 VAL [one_modf=1] [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; VAL [\result=6434062358, i0=1065353215, iptr={6:0}, one_modf=1] [L108] RET, EXPR modf_float(x, &iptr) [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L111] CALL, EXPR isinf_float(iptr) [L89] __int32_t ix; VAL [one_modf=1, x=6434062359] [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); [L111] RET, EXPR isinf_float(iptr) [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [one_modf=1, res=6434062358] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_modf=1, res=6434062358] [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_modf=1] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [one_modf=1, res=6434062358] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L112] reach_error() VAL [one_modf=1, res=6434062358] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, 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, 153 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 105 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 00:49:56,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:49:58,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:49:59,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:49:59,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:49:59,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:49:59,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:49:59,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:49:59,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:49:59,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:49:59,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:49:59,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:49:59,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:49:59,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:49:59,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:49:59,053 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:49:59,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:49:59,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:49:59,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:49:59,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:49:59,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:49:59,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:49:59,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:49:59,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:49:59,059 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:49:59,059 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:49:59,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:49:59,059 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:49:59,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:49:59,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:49:59,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:49:59,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:49:59,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:49:59,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:49:59,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:49:59,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:59,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:49:59,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:49:59,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:49:59,073 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:49:59,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:49:59,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:49:59,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:49:59,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:49:59,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:49:59,075 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:49:59,075 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60a85fa0dc6e4e6b4078469f7e24e1dca9372a9f2a0f0b1c4c333cd6d766b7f3 [2024-10-11 00:49:59,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:49:59,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:49:59,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:49:59,459 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:49:59,460 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:49:59,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2024-10-11 00:50:00,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:50:01,236 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:50:01,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2024-10-11 00:50:01,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d547a681d/0e836251e5624fe2a4398b170d0b0eb2/FLAG51ddee9c6 [2024-10-11 00:50:01,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d547a681d/0e836251e5624fe2a4398b170d0b0eb2 [2024-10-11 00:50:01,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:50:01,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:50:01,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:50:01,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:50:01,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:50:01,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5dcafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01, skipping insertion in model container [2024-10-11 00:50:01,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:50:01,565 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2024-10-11 00:50:01,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:50:01,594 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:50:01,637 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c[2579,2592] [2024-10-11 00:50:01,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:50:01,662 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:50:01,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01 WrapperNode [2024-10-11 00:50:01,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:50:01,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:50:01,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:50:01,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:50:01,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,728 INFO L138 Inliner]: procedures = 22, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2024-10-11 00:50:01,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:50:01,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:50:01,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:50:01,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:50:01,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,747 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,772 INFO L175 MemorySlicer]: Split 27 memory accesses to 11 slices as follows [2, 2, 2, 2, 2, 2, 7, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0]. The 13 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1]. [2024-10-11 00:50:01,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,794 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:50:01,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:50:01,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:50:01,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:50:01,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (1/1) ... [2024-10-11 00:50:01,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:50:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:50:01,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:50:01,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:50:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:50:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-10-11 00:50:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-10-11 00:50:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-10-11 00:50:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-10-11 00:50:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-10-11 00:50:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-10-11 00:50:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-10-11 00:50:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-10-11 00:50:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-10-11 00:50:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-10-11 00:50:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-10-11 00:50:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:50:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:50:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:50:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-11 00:50:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-11 00:50:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-11 00:50:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-11 00:50:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-11 00:50:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-11 00:50:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-10-11 00:50:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-10-11 00:50:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:50:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-11 00:50:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-11 00:50:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-11 00:50:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-11 00:50:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-11 00:50:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-11 00:50:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-11 00:50:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-11 00:50:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-10-11 00:50:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:50:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:50:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-11 00:50:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-11 00:50:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-11 00:50:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-11 00:50:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-11 00:50:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-11 00:50:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-10-11 00:50:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:50:02,103 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:50:02,105 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:50:02,542 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-11 00:50:02,544 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:50:02,583 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:50:02,584 INFO L314 CfgBuilder]: Removed 18 assume(true) statements. [2024-10-11 00:50:02,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:50:02 BoogieIcfgContainer [2024-10-11 00:50:02,584 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:50:02,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:50:02,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:50:02,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:50:02,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:50:01" (1/3) ... [2024-10-11 00:50:02,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e127194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:50:02, skipping insertion in model container [2024-10-11 00:50:02,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:50:01" (2/3) ... [2024-10-11 00:50:02,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e127194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:50:02, skipping insertion in model container [2024-10-11 00:50:02,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:50:02" (3/3) ... [2024-10-11 00:50:02,595 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2024-10-11 00:50:02,612 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:50:02,612 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:50:02,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:50:02,691 INFO L333 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, 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;@1104dc7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:50:02,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:50:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2024-10-11 00:50:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:50:02,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:50:02,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:50:02,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:50:02,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:50:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2065964625, now seen corresponding path program 1 times [2024-10-11 00:50:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:50:02,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48360431] [2024-10-11 00:50:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:50:02,725 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 [2024-10-11 00:50:02,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:50:02,728 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 00:50:02,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:50:02,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:50:02,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:50:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:50:02,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:50:02,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:50:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48360431] [2024-10-11 00:50:02,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48360431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:50:02,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:50:02,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:50:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195564522] [2024-10-11 00:50:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:50:02,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:50:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:50:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:50:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:50:02,968 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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 6.5) internal successors, (13), 2 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) [2024-10-11 00:50:02,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:50:02,998 INFO L93 Difference]: Finished difference Result 75 states and 121 transitions. [2024-10-11 00:50:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:50:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2024-10-11 00:50:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:50:03,009 INFO L225 Difference]: With dead ends: 75 [2024-10-11 00:50:03,010 INFO L226 Difference]: Without dead ends: 36 [2024-10-11 00:50:03,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:50:03,016 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:50:03,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:50:03,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-11 00:50:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-11 00:50:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-10-11 00:50:03,050 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 13 [2024-10-11 00:50:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:50:03,050 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-10-11 00:50:03,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2024-10-11 00:50:03,051 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-10-11 00:50:03,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 00:50:03,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:50:03,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:50:03,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-11 00:50:03,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:03,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:50:03,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:50:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1246316305, now seen corresponding path program 1 times [2024-10-11 00:50:03,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:50:03,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767664123] [2024-10-11 00:50:03,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:50:03,255 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 [2024-10-11 00:50:03,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:50:03,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 00:50:03,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:50:03,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 00:50:03,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:50:03,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:50:03,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:50:03,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:50:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767664123] [2024-10-11 00:50:03,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767664123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:50:03,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:50:03,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:50:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138257672] [2024-10-11 00:50:03,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:50:03,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 00:50:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:50:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 00:50:03,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 00:50:03,613 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:50:03,983 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2024-10-11 00:50:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 00:50:03,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 00:50:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:50:03,985 INFO L225 Difference]: With dead ends: 49 [2024-10-11 00:50:03,986 INFO L226 Difference]: Without dead ends: 23 [2024-10-11 00:50:03,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:50:03,990 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 00:50:03,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 56 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 00:50:03,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-11 00:50:03,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-10-11 00:50:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 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) [2024-10-11 00:50:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-10-11 00:50:03,995 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2024-10-11 00:50:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:50:03,996 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-10-11 00:50:03,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:03,996 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-10-11 00:50:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 00:50:03,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:50:03,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:50:04,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:04,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:04,198 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:50:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:50:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1096695432, now seen corresponding path program 1 times [2024-10-11 00:50:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:50:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119786785] [2024-10-11 00:50:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:50:04,200 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 [2024-10-11 00:50:04,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:50:04,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 00:50:04,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:50:04,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 00:50:04,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:50:04,586 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 [2024-10-11 00:50:04,628 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 56 treesize of output 32 [2024-10-11 00:50:04,690 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 [2024-10-11 00:50:04,699 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 35 treesize of output 19 [2024-10-11 00:50:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:50:04,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:50:04,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:50:04,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119786785] [2024-10-11 00:50:04,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119786785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:50:04,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:50:04,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 00:50:04,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892452944] [2024-10-11 00:50:04,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:50:04,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 00:50:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:50:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 00:50:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:50:04,831 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:50:05,125 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-10-11 00:50:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 00:50:05,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-11 00:50:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:50:05,127 INFO L225 Difference]: With dead ends: 26 [2024-10-11 00:50:05,127 INFO L226 Difference]: Without dead ends: 23 [2024-10-11 00:50:05,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 00:50:05,128 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 00:50:05,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 76 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 00:50:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-11 00:50:05,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-10-11 00:50:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2024-10-11 00:50:05,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2024-10-11 00:50:05,134 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2024-10-11 00:50:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:50:05,135 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2024-10-11 00:50:05,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2024-10-11 00:50:05,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 00:50:05,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:50:05,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:50:05,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:05,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:05,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:50:05,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:50:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1634917938, now seen corresponding path program 1 times [2024-10-11 00:50:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:50:05,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128700571] [2024-10-11 00:50:05,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:50:05,339 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 [2024-10-11 00:50:05,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:50:05,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 00:50:05,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:50:05,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 00:50:05,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:50:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:50:05,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:50:05,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:50:05,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128700571] [2024-10-11 00:50:05,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128700571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:50:05,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:50:05,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 00:50:05,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058798613] [2024-10-11 00:50:05,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:50:05,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 00:50:05,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:50:05,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 00:50:05,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 00:50:05,641 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:05,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:50:05,985 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2024-10-11 00:50:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 00:50:05,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-11 00:50:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:50:05,991 INFO L225 Difference]: With dead ends: 27 [2024-10-11 00:50:05,991 INFO L226 Difference]: Without dead ends: 23 [2024-10-11 00:50:05,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:50:05,992 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 00:50:05,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 00:50:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-11 00:50:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-10-11 00:50:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2024-10-11 00:50:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2024-10-11 00:50:05,997 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2024-10-11 00:50:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:50:05,997 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2024-10-11 00:50:05,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:50:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2024-10-11 00:50:05,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 00:50:06,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:50:06,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:50:06,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:06,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:06,201 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:50:06,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:50:06,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1736259994, now seen corresponding path program 1 times [2024-10-11 00:50:06,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:50:06,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835924671] [2024-10-11 00:50:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:50:06,202 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 [2024-10-11 00:50:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:50:06,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 00:50:06,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (6)] Waiting until timeout for monitored process [2024-10-11 00:50:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:50:06,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 00:50:06,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:50:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:50:06,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:50:06,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:50:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835924671] [2024-10-11 00:50:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835924671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:50:06,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:50:06,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 00:50:06,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827533995] [2024-10-11 00:50:06,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:50:06,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 00:50:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:50:06,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 00:50:06,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 00:50:06,974 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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) [2024-10-11 00:50:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:50:07,766 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2024-10-11 00:50:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 00:50:07,766 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2024-10-11 00:50:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:50:07,766 INFO L225 Difference]: With dead ends: 23 [2024-10-11 00:50:07,767 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 00:50:07,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 00:50:07,768 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 00:50:07,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 00:50:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 00:50:07,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 00:50:07,769 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) [2024-10-11 00:50:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 00:50:07,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2024-10-11 00:50:07,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:50:07,770 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 00:50:07,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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) [2024-10-11 00:50:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 00:50:07,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 00:50:07,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:50:07,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (6)] Ended with exit code 0 [2024-10-11 00:50:07,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 00:50:07,977 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-11 00:50:07,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 00:50:08,136 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:50:08,145 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~iptr!offset [2024-10-11 00:50:08,145 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#iptr~0!offset [2024-10-11 00:50:08,146 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:50:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~iptr!base [2024-10-11 00:50:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#iptr~0!base [2024-10-11 00:50:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:50:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:50:08,147 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:50:08,149 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,149 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,150 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:50:08,150 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-10-11 00:50:08,150 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,150 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:50:08,151 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-10-11 00:50:08,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:50:08 BoogieIcfgContainer [2024-10-11 00:50:08,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:50:08,154 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:50:08,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:50:08,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:50:08,155 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:50:02" (3/4) ... [2024-10-11 00:50:08,157 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 00:50:08,166 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-10-11 00:50:08,166 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-11 00:50:08,166 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 00:50:08,167 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 00:50:08,278 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 00:50:08,279 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 00:50:08,279 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:50:08,280 INFO L158 Benchmark]: Toolchain (without parser) took 7012.08ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 33.9MB in the beginning and 40.0MB in the end (delta: -6.2MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,280 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:50:08,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.65ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 33.7MB in the beginning and 56.6MB in the end (delta: -22.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.86ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,281 INFO L158 Benchmark]: Boogie Preprocessor took 97.08ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,281 INFO L158 Benchmark]: RCFGBuilder took 756.46ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 47.3MB in the end (delta: 3.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,281 INFO L158 Benchmark]: TraceAbstraction took 5568.00ms. Allocated memory is still 79.7MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,282 INFO L158 Benchmark]: Witness Printer took 124.81ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 40.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:50:08,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.65ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 33.7MB in the beginning and 56.6MB in the end (delta: -22.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.86ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.08ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 756.46ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 47.3MB in the end (delta: 3.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5568.00ms. Allocated memory is still 79.7MB. Free memory was 46.9MB in the beginning and 45.1MB in the end (delta: 1.8MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 124.81ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 40.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~iptr!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#iptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~iptr!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#iptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression * 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: 112]: 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 204 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 92 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 33, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 32 QuantifiedInterpolants, 1087 SizeOfPredicates, 22 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 19]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-11 00:50:08,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE