./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032c.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/float_req_bl_1032c.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 fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:21:54,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:21:54,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:21:55,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:21:55,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:21:55,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:21:55,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:21:55,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:21:55,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:21:55,039 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:21:55,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:21:55,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:21:55,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:21:55,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:21:55,041 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:21:55,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:21:55,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:21:55,041 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:21:55,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:21:55,042 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:21:55,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:21:55,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:21:55,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:21:55,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:21:55,043 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 -> fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 [2025-01-09 01:21:55,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:21:55,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:21:55,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:21:55,358 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:21:55,359 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:21:55,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2025-01-09 01:21:56,739 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/185d66f36/0a78b5392f8e4041af74f8ffe38e6ebb/FLAG126bc9d41 [2025-01-09 01:21:56,982 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:21:56,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2025-01-09 01:21:56,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/185d66f36/0a78b5392f8e4041af74f8ffe38e6ebb/FLAG126bc9d41 [2025-01-09 01:21:57,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/185d66f36/0a78b5392f8e4041af74f8ffe38e6ebb [2025-01-09 01:21:57,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:21:57,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:21:57,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:21:57,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:21:57,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:21:57,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526bdd33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57, skipping insertion in model container [2025-01-09 01:21:57,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:21:57,206 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/float_req_bl_1032c.c[1743,1756] [2025-01-09 01:21:57,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:21:57,224 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:21:57,253 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/float_req_bl_1032c.c[1743,1756] [2025-01-09 01:21:57,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:21:57,271 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:21:57,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57 WrapperNode [2025-01-09 01:21:57,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:21:57,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:21:57,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:21:57,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:21:57,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,307 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 134 [2025-01-09 01:21:57,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:21:57,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:21:57,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:21:57,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:21:57,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,346 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:21:57,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,356 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:21:57,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:21:57,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:21:57,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:21:57,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (1/1) ... [2025-01-09 01:21:57,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:21:57,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:21:57,414 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 01:21:57,420 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 01:21:57,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:21:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:21:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:21:57,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:21:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:21:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:21:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:21:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:21:57,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:21:57,543 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:21:57,545 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:21:57,801 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-01-09 01:21:57,801 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:21:57,813 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:21:57,813 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 01:21:57,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:21:57 BoogieIcfgContainer [2025-01-09 01:21:57,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:21:57,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:21:57,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:21:57,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:21:57,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:21:57" (1/3) ... [2025-01-09 01:21:57,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511c986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:21:57, skipping insertion in model container [2025-01-09 01:21:57,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:21:57" (2/3) ... [2025-01-09 01:21:57,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511c986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:21:57, skipping insertion in model container [2025-01-09 01:21:57,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:21:57" (3/3) ... [2025-01-09 01:21:57,822 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c [2025-01-09 01:21:57,836 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:21:57,837 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1032c.c that has 1 procedures, 50 locations, 1 initial locations, 6 loop locations, and 4 error locations. [2025-01-09 01:21:57,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:21:57,902 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;@168b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:21:57,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:21:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 49 states have internal predecessors, (74), 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 01:21:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:21:57,913 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:21:57,913 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:21:57,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-01-09 01:21:57,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:21:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:21:57,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:21:57,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156695853] [2025-01-09 01:21:57,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:21:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:21:58,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:21:58,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:21:58,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:21:58,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:21:58,018 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:21:58,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:21:58,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:21:58,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:21:58,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:21:58,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:21:58,046 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:21:58,048 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:21:58,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:21:58,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:21:58,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:21:58,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:21:58,054 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:21:58,067 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:21:58,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:21:58 BoogieIcfgContainer [2025-01-09 01:21:58,071 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:21:58,071 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:21:58,071 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:21:58,072 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:21:58,073 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:21:57" (3/4) ... [2025-01-09 01:21:58,075 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:21:58,078 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:21:58,079 INFO L158 Benchmark]: Toolchain (without parser) took 1062.42ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 68.2MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:21:58,080 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:21:58,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 99.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:21:58,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.52ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:21:58,081 INFO L158 Benchmark]: Boogie Preprocessor took 65.99ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:21:58,081 INFO L158 Benchmark]: RCFGBuilder took 435.39ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 80.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:21:58,081 INFO L158 Benchmark]: TraceAbstraction took 255.33ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 68.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:21:58,082 INFO L158 Benchmark]: Witness Printer took 6.55ms. Allocated memory is still 142.6MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:21:58,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 99.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.52ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.99ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.39ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 80.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 255.33ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 68.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 6.55ms. Allocated memory is still 142.6MB. Free memory is still 68.2MB. 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: 19]: 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 union with floats in the HoenickeLindenmann_Original memory model at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 76. Possible FailurePath: [L76] float x = 1.0f / 0.0f; [L77] CALL round_float(x) [L14] __uint32_t w; [L16] int exponent_less_127; VAL [x=53] [L19] ieee_float_shape_type gf_u; VAL [x=53] - UnprovableResult [Line: 49]: 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: 60]: 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: 81]: 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, 50 locations, 4 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=50occurred 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 01:21:58,102 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/float_req_bl_1032c.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 fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:22:00,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:22:00,587 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:22:00,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:22:00,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:22:00,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:22:00,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:22:00,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:22:00,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:22:00,619 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:22:00,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:22:00,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:22:00,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:22:00,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:22:00,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:22:00,620 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:22:00,621 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:00,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:00,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:00,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:22:00,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:22:00,622 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 -> fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 [2025-01-09 01:22:00,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:22:00,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:22:00,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:22:00,920 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:22:00,923 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:22:00,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2025-01-09 01:22:02,308 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/92b1edf92/f1434ed43ea241589a988b0475fe21ea/FLAGa567c244e [2025-01-09 01:22:02,540 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:22:02,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2025-01-09 01:22:02,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/92b1edf92/f1434ed43ea241589a988b0475fe21ea/FLAGa567c244e [2025-01-09 01:22:02,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/92b1edf92/f1434ed43ea241589a988b0475fe21ea [2025-01-09 01:22:02,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:22:02,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:22:02,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:02,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:22:02,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:22:02,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5792fa25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02, skipping insertion in model container [2025-01-09 01:22:02,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:22:02,763 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/float_req_bl_1032c.c[1743,1756] [2025-01-09 01:22:02,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:02,786 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:22:02,811 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/float_req_bl_1032c.c[1743,1756] [2025-01-09 01:22:02,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:02,831 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:22:02,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02 WrapperNode [2025-01-09 01:22:02,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:02,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:02,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:22:02,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:22:02,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,873 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2025-01-09 01:22:02,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:02,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:22:02,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:22:02,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:22:02,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,907 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:22:02,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,923 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:22:02,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:22:02,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:22:02,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:22:02,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (1/1) ... [2025-01-09 01:22:02,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:22:02,981 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 01:22:02,987 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 01:22:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:22:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:22:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:22:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:22:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:22:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:22:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:22:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:22:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:22:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:22:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:22:03,118 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:22:03,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:22:03,331 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-01-09 01:22:03,331 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:22:03,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:22:03,339 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:22:03,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:03 BoogieIcfgContainer [2025-01-09 01:22:03,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:22:03,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:22:03,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:22:03,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:22:03,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:22:02" (1/3) ... [2025-01-09 01:22:03,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba384be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:03, skipping insertion in model container [2025-01-09 01:22:03,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:02" (2/3) ... [2025-01-09 01:22:03,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba384be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:03, skipping insertion in model container [2025-01-09 01:22:03,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:03" (3/3) ... [2025-01-09 01:22:03,349 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c [2025-01-09 01:22:03,365 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:22:03,366 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1032c.c that has 1 procedures, 24 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 01:22:03,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:22:03,436 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;@7a55f2c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:22:03,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:22:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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 01:22:03,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 01:22:03,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:03,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:22:03,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:03,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash 94139927, now seen corresponding path program 1 times [2025-01-09 01:22:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305223665] [2025-01-09 01:22:03,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:03,466 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 01:22:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:03,469 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 01:22:03,470 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 01:22:03,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 01:22:03,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 01:22:03,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:03,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:03,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:22:03,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:03,591 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 01:22:03,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:03,592 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305223665] [2025-01-09 01:22:03,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305223665] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:03,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:03,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:22:03,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151445372] [2025-01-09 01:22:03,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:03,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:22:03,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:03,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:22:03,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:22:03,618 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:22:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:03,629 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2025-01-09 01:22:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:22:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2025-01-09 01:22:03,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:03,639 INFO L225 Difference]: With dead ends: 46 [2025-01-09 01:22:03,639 INFO L226 Difference]: Without dead ends: 21 [2025-01-09 01:22:03,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 01:22:03,645 INFO L435 NwaCegarLoop]: 28 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, 28 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 01:22:03,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:22:03,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-01-09 01:22:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-01-09 01:22:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2025-01-09 01:22:03,674 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2025-01-09 01:22:03,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:03,675 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2025-01-09 01:22:03,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:22:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2025-01-09 01:22:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-09 01:22:03,677 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:03,677 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:22:03,681 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 01:22:03,878 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 01:22:03,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:03,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1428179288, now seen corresponding path program 1 times [2025-01-09 01:22:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035977322] [2025-01-09 01:22:03,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:03,879 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 01:22:03,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:03,882 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 01:22:03,883 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 01:22:03,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-09 01:22:03,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-09 01:22:03,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:03,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:03,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 01:22:03,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:04,312 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 01:22:04,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:04,312 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:04,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035977322] [2025-01-09 01:22:04,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035977322] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:04,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 01:22:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663826385] [2025-01-09 01:22:04,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:04,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:22:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:04,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:22:04,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:22:04,317 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:04,528 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2025-01-09 01:22:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:22:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-01-09 01:22:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:04,529 INFO L225 Difference]: With dead ends: 29 [2025-01-09 01:22:04,529 INFO L226 Difference]: Without dead ends: 20 [2025-01-09 01:22:04,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-01-09 01:22:04,530 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:22:04,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 99 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:22:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-01-09 01:22:04,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-01-09 01:22:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 01:22:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2025-01-09 01:22:04,533 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2025-01-09 01:22:04,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:04,533 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2025-01-09 01:22:04,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:04,533 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2025-01-09 01:22:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-01-09 01:22:04,534 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:04,534 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 01:22:04,538 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 01:22:04,734 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 01:22:04,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:04,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:04,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1392343197, now seen corresponding path program 1 times [2025-01-09 01:22:04,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:04,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866883889] [2025-01-09 01:22:04,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:04,736 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 01:22:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:04,737 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 01:22:04,738 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 01:22:04,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-09 01:22:04,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-09 01:22:04,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:04,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:04,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:22:04,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:04,936 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 01:22:04,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:04,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:04,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866883889] [2025-01-09 01:22:04,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866883889] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:04,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:04,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:22:04,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788853891] [2025-01-09 01:22:04,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:04,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:22:04,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:04,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:22:04,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:22:04,939 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 01:22:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:05,029 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2025-01-09 01:22:05,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 01:22:05,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 01:22:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:05,029 INFO L225 Difference]: With dead ends: 20 [2025-01-09 01:22:05,030 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:22:05,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 01:22:05,031 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:22:05,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:22:05,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:22:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:22:05,032 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 01:22:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:22:05,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2025-01-09 01:22:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:05,032 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:22:05,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 01:22:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:22:05,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:22:05,035 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:22:05,041 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-01-09 01:22:05,236 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 01:22:05,239 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 01:22:05,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 01:22:05,287 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:22:05,297 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-01-09 01:22:05,298 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:22:05,298 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:05,301 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:22:05,301 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:05,301 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:05,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:22:05 BoogieIcfgContainer [2025-01-09 01:22:05,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:22:05,304 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:22:05,304 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:22:05,305 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:22:05,305 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:03" (3/4) ... [2025-01-09 01:22:05,307 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 01:22:05,316 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 01:22:05,316 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 01:22:05,317 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 01:22:05,317 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 01:22:05,390 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:22:05,391 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:22:05,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:22:05,393 INFO L158 Benchmark]: Toolchain (without parser) took 2817.36ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 50.1MB in the end (delta: 40.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2025-01-09 01:22:05,393 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 18.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:05,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.72ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 78.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:05,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.53ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:05,396 INFO L158 Benchmark]: Boogie Preprocessor took 69.15ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:05,396 INFO L158 Benchmark]: RCFGBuilder took 393.12ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 61.9MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:05,397 INFO L158 Benchmark]: TraceAbstraction took 1961.33ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 56.1MB in the end (delta: 5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-01-09 01:22:05,397 INFO L158 Benchmark]: Witness Printer took 86.53ms. Allocated memory is still 117.4MB. Free memory was 56.1MB in the beginning and 50.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:05,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 18.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.72ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 78.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.53ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.15ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.12ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 61.9MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1961.33ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 56.1MB in the end (delta: 5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 86.53ms. Allocated memory is still 117.4MB. Free memory was 56.1MB in the beginning and 50.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 81]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 47 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 235 SizeOfPredicates, 8 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 01:22:05,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE