./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1131a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1131a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1b31ce7f7c4676859cda30df478f5c182e9a7ecf5b09749c2174b3af169f370c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:12:32,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:12:33,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:12:33,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:12:33,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:12:33,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:12:33,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:12:33,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:12:33,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:12:33,073 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:12:33,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:12:33,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:12:33,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:12:33,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:12:33,074 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:12:33,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:12:33,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:12:33,076 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:12:33,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:33,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:33,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:12:33,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:12:33,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:12:33,079 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 1b31ce7f7c4676859cda30df478f5c182e9a7ecf5b09749c2174b3af169f370c [2025-01-09 01:12:33,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:12:33,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:12:33,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:12:33,382 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:12:33,383 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:12:33,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1131a.c [2025-01-09 01:12:34,682 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50301829c/191f4f6419ef45d18b2587d22cb082d6/FLAG3eeb3003f [2025-01-09 01:12:34,927 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:12:34,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c [2025-01-09 01:12:34,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50301829c/191f4f6419ef45d18b2587d22cb082d6/FLAG3eeb3003f [2025-01-09 01:12:34,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/50301829c/191f4f6419ef45d18b2587d22cb082d6 [2025-01-09 01:12:34,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:12:34,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:12:34,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:12:34,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:12:34,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:12:34,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:12:34" (1/1) ... [2025-01-09 01:12:34,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eaa0d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:34, skipping insertion in model container [2025-01-09 01:12:34,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:12:34" (1/1) ... [2025-01-09 01:12:35,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:12:35,228 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c[4189,4202] [2025-01-09 01:12:35,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:12:35,245 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:12:35,304 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c[4189,4202] [2025-01-09 01:12:35,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:12:35,324 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:12:35,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35 WrapperNode [2025-01-09 01:12:35,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:12:35,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:12:35,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:12:35,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:12:35,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,372 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 446 [2025-01-09 01:12:35,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:12:35,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:12:35,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:12:35,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:12:35,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,411 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 5, 3, 3, 3, 3, 2]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 0, 1, 2, 1, 2, 1]. [2025-01-09 01:12:35,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,429 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:12:35,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:12:35,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:12:35,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:12:35,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (1/1) ... [2025-01-09 01:12:35,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:35,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:12:35,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:12:35,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:12:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:12:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:12:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:12:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:12:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:12:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 01:12:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 01:12:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 01:12:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:12:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:12:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:12:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:12:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:12:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 01:12:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 01:12:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 01:12:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:12:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:12:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:12:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:12:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 01:12:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 01:12:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 01:12:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:12:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:12:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:12:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:12:35,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:12:35,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-01-09 01:12:35,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-01-09 01:12:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-01-09 01:12:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2025-01-09 01:12:35,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:12:35,664 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:12:35,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:12:36,279 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2025-01-09 01:12:36,279 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:12:36,293 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:12:36,293 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2025-01-09 01:12:36,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:12:36 BoogieIcfgContainer [2025-01-09 01:12:36,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:12:36,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:12:36,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:12:36,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:12:36,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:12:34" (1/3) ... [2025-01-09 01:12:36,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a03ef1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:12:36, skipping insertion in model container [2025-01-09 01:12:36,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:35" (2/3) ... [2025-01-09 01:12:36,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a03ef1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:12:36, skipping insertion in model container [2025-01-09 01:12:36,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:12:36" (3/3) ... [2025-01-09 01:12:36,304 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2025-01-09 01:12:36,319 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:12:36,321 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1131a.c that has 1 procedures, 160 locations, 1 initial locations, 16 loop locations, and 6 error locations. [2025-01-09 01:12:36,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:12:36,399 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;@366a694c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:12:36,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-09 01:12:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 153 states have (on average 1.6339869281045751) internal successors, (250), 159 states have internal predecessors, (250), 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) [2025-01-09 01:12:36,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:12:36,410 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:12:36,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:12:36,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 3 more)] === [2025-01-09 01:12:36,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:12:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:12:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:12:36,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222264788] [2025-01-09 01:12:36,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:12:36,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:12:36,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:12:36,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:12:36,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:12:36,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:12:36,513 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:12:36,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:12:36,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:12:36,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:12:36,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:12:36,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:12:36,545 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:12:36,546 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 6 remaining) [2025-01-09 01:12:36,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 6 remaining) [2025-01-09 01:12:36,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 6 remaining) [2025-01-09 01:12:36,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 6 remaining) [2025-01-09 01:12:36,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 6 remaining) [2025-01-09 01:12:36,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2025-01-09 01:12:36,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:12:36,552 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:12:36,581 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:12:36,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:12:36 BoogieIcfgContainer [2025-01-09 01:12:36,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:12:36,586 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:12:36,586 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:12:36,586 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:12:36,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:12:36" (3/4) ... [2025-01-09 01:12:36,589 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:12:36,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:12:36,590 INFO L158 Benchmark]: Toolchain (without parser) took 1600.91ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 107.8MB in the end (delta: 5.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2025-01-09 01:12:36,590 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:12:36,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.32ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 98.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:12:36,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.98ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 95.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:12:36,591 INFO L158 Benchmark]: Boogie Preprocessor took 84.03ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 91.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:12:36,591 INFO L158 Benchmark]: RCFGBuilder took 835.43ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 53.3MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:12:36,592 INFO L158 Benchmark]: TraceAbstraction took 289.46ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 107.8MB in the end (delta: -55.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2025-01-09 01:12:36,592 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:12:36,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.32ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 98.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.98ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 95.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 84.03ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 91.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 835.43ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 53.3MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 289.46ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 107.8MB in the end (delta: -55.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.8MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 168]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 182, overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 168, overapproximation of someUnaryDOUBLEoperation at line 22. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, one_fmod=1] [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) [L166] __int32_t hx; VAL [Zero_fmod={4:0}, one_fmod=1] [L168] ieee_double_shape_type gh_u; VAL [Zero_fmod={4:0}, one_fmod=1] - UnprovableResult [Line: 30]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 191]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 160 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:12:36,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1131a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1b31ce7f7c4676859cda30df478f5c182e9a7ecf5b09749c2174b3af169f370c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:12:38,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:12:39,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:12:39,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:12:39,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:12:39,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:12:39,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:12:39,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:12:39,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:12:39,057 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:12:39,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:12:39,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:12:39,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:12:39,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:12:39,058 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:12:39,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:12:39,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:12:39,059 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:12:39,060 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:12:39,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:39,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:39,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:12:39,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:12:39,062 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 1b31ce7f7c4676859cda30df478f5c182e9a7ecf5b09749c2174b3af169f370c [2025-01-09 01:12:39,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:12:39,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:12:39,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:12:39,374 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:12:39,374 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:12:39,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1131a.c [2025-01-09 01:12:40,787 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04dbb6be0/97c38f421a30480792f457d8c0e6d3f9/FLAG626bdb71f [2025-01-09 01:12:41,016 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:12:41,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c [2025-01-09 01:12:41,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04dbb6be0/97c38f421a30480792f457d8c0e6d3f9/FLAG626bdb71f [2025-01-09 01:12:41,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04dbb6be0/97c38f421a30480792f457d8c0e6d3f9 [2025-01-09 01:12:41,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:12:41,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:12:41,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:12:41,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:12:41,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:12:41,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f1a080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41, skipping insertion in model container [2025-01-09 01:12:41,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:12:41,280 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c[4189,4202] [2025-01-09 01:12:41,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:12:41,297 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:12:41,353 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1131a.c[4189,4202] [2025-01-09 01:12:41,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:12:41,378 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:12:41,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41 WrapperNode [2025-01-09 01:12:41,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:12:41,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:12:41,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:12:41,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:12:41,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,432 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 222 [2025-01-09 01:12:41,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:12:41,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:12:41,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:12:41,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:12:41,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,450 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,485 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 5, 2, 3, 3, 3, 3]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 0, 1, 1, 2, 1, 2]. [2025-01-09 01:12:41,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:12:41,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:12:41,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:12:41,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:12:41,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (1/1) ... [2025-01-09 01:12:41,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:12:41,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:12:41,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:12:41,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:12:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:12:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-01-09 01:12:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-01-09 01:12:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2025-01-09 01:12:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2025-01-09 01:12:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2025-01-09 01:12:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:12:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:12:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:12:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:12:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-01-09 01:12:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-01-09 01:12:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2025-01-09 01:12:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:12:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-01-09 01:12:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:12:41,755 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:12:41,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:12:49,604 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2025-01-09 01:12:49,604 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:12:49,614 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:12:49,614 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 01:12:49,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:12:49 BoogieIcfgContainer [2025-01-09 01:12:49,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:12:49,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:12:49,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:12:49,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:12:49,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:12:41" (1/3) ... [2025-01-09 01:12:49,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cef4280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:12:49, skipping insertion in model container [2025-01-09 01:12:49,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:12:41" (2/3) ... [2025-01-09 01:12:49,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cef4280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:12:49, skipping insertion in model container [2025-01-09 01:12:49,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:12:49" (3/3) ... [2025-01-09 01:12:49,624 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2025-01-09 01:12:49,636 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:12:49,638 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1131a.c that has 1 procedures, 57 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-01-09 01:12:49,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:12:49,697 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;@72c0a38c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:12:49,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:12:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 55 states have (on average 1.7454545454545454) internal successors, (96), 56 states have internal predecessors, (96), 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) [2025-01-09 01:12:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-09 01:12:49,706 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:12:49,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:12:49,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:12:49,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:12:49,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1842007834, now seen corresponding path program 1 times [2025-01-09 01:12:49,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:12:49,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270566366] [2025-01-09 01:12:49,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:12:49,721 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 [2025-01-09 01:12:49,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:12:49,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-01-09 01:12:49,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 01:12:49,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-09 01:12:50,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-09 01:12:50,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:12:50,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:12:50,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:12:50,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:12:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:12:50,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:12:50,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:12:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270566366] [2025-01-09 01:12:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270566366] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:12:50,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:12:50,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:12:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244296062] [2025-01-09 01:12:50,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:12:50,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:12:50,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:12:50,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:12:50,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:12:50,620 INFO L87 Difference]: Start difference. First operand has 57 states, 55 states have (on average 1.7454545454545454) internal successors, (96), 56 states have internal predecessors, (96), 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) [2025-01-09 01:12:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:12:50,635 INFO L93 Difference]: Finished difference Result 112 states and 190 transitions. [2025-01-09 01:12:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:12:50,637 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 [2025-01-09 01:12:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:12:50,643 INFO L225 Difference]: With dead ends: 112 [2025-01-09 01:12:50,644 INFO L226 Difference]: Without dead ends: 53 [2025-01-09 01:12:50,646 INFO L434 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 [2025-01-09 01:12:50,649 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:12:50,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:12:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-01-09 01:12:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-01-09 01:12:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 52 states have internal predecessors, (79), 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) [2025-01-09 01:12:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions. [2025-01-09 01:12:50,681 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 79 transitions. Word has length 13 [2025-01-09 01:12:50,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:12:50,684 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 79 transitions. [2025-01-09 01:12:50,684 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) [2025-01-09 01:12:50,684 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2025-01-09 01:12:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-09 01:12:50,685 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:12:50,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:12:50,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Ended with exit code 0 [2025-01-09 01:12:50,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-01-09 01:12:50,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:12:50,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:12:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash 589219097, now seen corresponding path program 1 times [2025-01-09 01:12:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:12:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867653019] [2025-01-09 01:12:50,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:12:50,889 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 [2025-01-09 01:12:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:12:50,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-01-09 01:12:50,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 01:12:50,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 01:12:51,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 01:12:51,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:12:51,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:12:51,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-09 01:12:51,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:05,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:05,106 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867653019] [2025-01-09 01:13:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867653019] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:05,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:05,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 01:13:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931353105] [2025-01-09 01:13:05,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:05,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 01:13:05,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:05,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 01:13:05,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=71, Unknown=2, NotChecked=0, Total=90 [2025-01-09 01:13:05,108 INFO L87 Difference]: Start difference. First operand 53 states and 79 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:13:12,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:18,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:22,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:42,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:46,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:50,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:54,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:59,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:13:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:59,401 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2025-01-09 01:13:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 01:13:59,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-01-09 01:13:59,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:59,402 INFO L225 Difference]: With dead ends: 57 [2025-01-09 01:13:59,403 INFO L226 Difference]: Without dead ends: 19 [2025-01-09 01:13:59,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=39, Invalid=165, Unknown=6, NotChecked=0, Total=210 [2025-01-09 01:13:59,404 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:59,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 53 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 8 Unknown, 0 Unchecked, 35.8s Time] [2025-01-09 01:13:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-01-09 01:13:59,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-01-09 01:13:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:13:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2025-01-09 01:13:59,410 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 16 [2025-01-09 01:13:59,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:59,411 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2025-01-09 01:13:59,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:13:59,411 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2025-01-09 01:13:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-01-09 01:13:59,412 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:59,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:59,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Ended with exit code 0 [2025-01-09 01:13:59,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/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 [2025-01-09 01:13:59,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:59,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:59,618 INFO L85 PathProgramCache]: Analyzing trace with hash -815231340, now seen corresponding path program 1 times [2025-01-09 01:13:59,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:59,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571012590] [2025-01-09 01:13:59,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:59,618 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 [2025-01-09 01:13:59,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:59,620 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/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) [2025-01-09 01:13:59,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 01:13:59,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-09 01:13:59,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-09 01:13:59,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:59,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:59,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 01:13:59,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:14:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:14:03,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:14:03,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:14:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571012590] [2025-01-09 01:14:03,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571012590] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:14:03,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:14:03,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 01:14:03,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903880730] [2025-01-09 01:14:03,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:14:03,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:14:03,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:14:03,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:14:03,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:14:03,315 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:14:05,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:14:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:14:07,248 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2025-01-09 01:14:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:14:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-01-09 01:14:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:14:07,249 INFO L225 Difference]: With dead ends: 19 [2025-01-09 01:14:07,249 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:14:07,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-09 01:14:07,250 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-09 01:14:07,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-09 01:14:07,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:14:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:14:07,251 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) [2025-01-09 01:14:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:14:07,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2025-01-09 01:14:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:14:07,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:14:07,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:14:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:14:07,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:14:07,254 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:14:07,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Ended with exit code 0 [2025-01-09 01:14:07,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/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 [2025-01-09 01:14:07,458 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 01:14:07,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.