./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/floats-cbmc-regression/float22.i -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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:25:49,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:25:49,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:25:49,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:25:49,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:25:49,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:25:49,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:25:49,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:25:49,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:25:49,672 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:25:49,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:25:49,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:25:49,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:25:49,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:25:49,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:25:49,674 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:25:49,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:25:49,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:25:49,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:25:49,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:25:49,676 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 -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2025-02-07 18:25:49,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:25:49,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:25:49,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:25:49,881 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:25:49,881 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:25:49,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2025-02-07 18:25:50,938 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1bcacf82/60047a8af9ce42e59e66dca3c8acb962/FLAGd93ba0342 [2025-02-07 18:25:51,157 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:25:51,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2025-02-07 18:25:51,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1bcacf82/60047a8af9ce42e59e66dca3c8acb962/FLAGd93ba0342 [2025-02-07 18:25:51,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1bcacf82/60047a8af9ce42e59e66dca3c8acb962 [2025-02-07 18:25:51,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:25:51,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:25:51,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:25:51,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:25:51,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:25:51,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9b7376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51, skipping insertion in model container [2025-02-07 18:25:51,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:25:51,626 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/floats-cbmc-regression/float22.i[2558,2571] [2025-02-07 18:25:51,631 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/floats-cbmc-regression/float22.i[2753,2766] [2025-02-07 18:25:51,633 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/floats-cbmc-regression/float22.i[2881,2894] [2025-02-07 18:25:51,634 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/floats-cbmc-regression/float22.i[3073,3086] [2025-02-07 18:25:51,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:25:51,646 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:25:51,665 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/floats-cbmc-regression/float22.i[2558,2571] [2025-02-07 18:25:51,667 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/floats-cbmc-regression/float22.i[2753,2766] [2025-02-07 18:25:51,671 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/floats-cbmc-regression/float22.i[2881,2894] [2025-02-07 18:25:51,673 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/floats-cbmc-regression/float22.i[3073,3086] [2025-02-07 18:25:51,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:25:51,685 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:25:51,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51 WrapperNode [2025-02-07 18:25:51,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:25:51,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:25:51,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:25:51,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:25:51,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,716 INFO L138 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2025-02-07 18:25:51,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:25:51,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:25:51,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:25:51,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:25:51,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,739 INFO L175 MemorySlicer]: Split 41 memory accesses to 9 slices as follows [2, 7, 7, 5, 4, 7, 5, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 5, 5, 4, 3, 3, 4, 1, 1]. [2025-02-07 18:25:51,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:25:51,764 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:25:51,764 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:25:51,764 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:25:51,765 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (1/1) ... [2025-02-07 18:25:51,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:25:51,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:25:51,798 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) [2025-02-07 18:25:51,800 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 [2025-02-07 18:25:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:25:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2025-02-07 18:25:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-07 18:25:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-07 18:25:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2025-02-07 18:25:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:25:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-07 18:25:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:25:51,930 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:25:51,931 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:25:51,979 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L124: havoc #t~mem1;call ULTIMATE.dealloc(~#c~0.base, ~#c~0.offset);havoc ~#c~0.base, ~#c~0.offset; [2025-02-07 18:25:51,992 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L134: havoc #t~mem2;havoc #t~mem3;havoc #t~mem4;havoc #t~mem5;call ULTIMATE.dealloc(~#c~1.base, ~#c~1.offset);havoc ~#c~1.base, ~#c~1.offset; [2025-02-07 18:25:52,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L151: call ULTIMATE.dealloc(testTwo_~#f1~1#1.base, testTwo_~#f1~1#1.offset);havoc testTwo_~#f1~1#1.base, testTwo_~#f1~1#1.offset;call ULTIMATE.dealloc(testTwo_~#f2~1#1.base, testTwo_~#f2~1#1.offset);havoc testTwo_~#f2~1#1.base, testTwo_~#f2~1#1.offset; [2025-02-07 18:25:52,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L139: call ULTIMATE.dealloc(testOne_~#f1~0#1.base, testOne_~#f1~0#1.offset);havoc testOne_~#f1~0#1.base, testOne_~#f1~0#1.offset;call ULTIMATE.dealloc(testOne_~#f2~0#1.base, testOne_~#f2~0#1.offset);havoc testOne_~#f2~0#1.base, testOne_~#f2~0#1.offset; [2025-02-07 18:25:52,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L168: call ULTIMATE.dealloc(testThree_~#f1~2#1.base, testThree_~#f1~2#1.offset);havoc testThree_~#f1~2#1.base, testThree_~#f1~2#1.offset;call ULTIMATE.dealloc(testThree_~#f2~2#1.base, testThree_~#f2~2#1.offset);havoc testThree_~#f2~2#1.base, testThree_~#f2~2#1.offset; [2025-02-07 18:25:52,121 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-07 18:25:52,121 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:25:52,127 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:25:52,127 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:25:52,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:52 BoogieIcfgContainer [2025-02-07 18:25:52,128 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:25:52,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:25:52,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:25:52,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:25:52,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:25:51" (1/3) ... [2025-02-07 18:25:52,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daed779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:25:52, skipping insertion in model container [2025-02-07 18:25:52,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:51" (2/3) ... [2025-02-07 18:25:52,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6daed779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:25:52, skipping insertion in model container [2025-02-07 18:25:52,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:52" (3/3) ... [2025-02-07 18:25:52,134 INFO L128 eAbstractionObserver]: Analyzing ICFG float22.i [2025-02-07 18:25:52,142 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:25:52,143 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float22.i that has 3 procedures, 67 locations, 1 initial locations, 8 loop locations, and 12 error locations. [2025-02-07 18:25:52,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:25:52,178 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;@20703619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:25:52,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-02-07 18:25:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 56 states have internal predecessors, (68), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 18:25:52,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-07 18:25:52,183 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:25:52,184 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-07 18:25:52,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [returnsFieldErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, returnsStructureErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2025-02-07 18:25:52,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:25:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash 111184, now seen corresponding path program 1 times [2025-02-07 18:25:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:25:52,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722169043] [2025-02-07 18:25:52,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:25:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:25:52,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-07 18:25:52,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-07 18:25:52,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:25:52,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:25:52,240 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:25:52,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-07 18:25:52,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-07 18:25:52,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:25:52,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:25:52,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:25:52,254 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:25:52,254 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONUNSUPPORTED_FEATURE (11 of 12 remaining) [2025-02-07 18:25:52,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location returnsFieldErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (10 of 12 remaining) [2025-02-07 18:25:52,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location returnsStructureErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (9 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 12 remaining) [2025-02-07 18:25:52,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 12 remaining) [2025-02-07 18:25:52,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2025-02-07 18:25:52,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 12 remaining) [2025-02-07 18:25:52,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:25:52,261 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 18:25:52,269 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:25:52,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:25:52 BoogieIcfgContainer [2025-02-07 18:25:52,273 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:25:52,274 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:25:52,274 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:25:52,274 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:25:52,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:52" (3/4) ... [2025-02-07 18:25:52,276 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:25:52,277 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:25:52,278 INFO L158 Benchmark]: Toolchain (without parser) took 780.08ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 86.0MB in the end (delta: 49.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 18:25:52,278 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:25:52,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.93ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 123.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:25:52,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.87ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 122.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:25:52,279 INFO L158 Benchmark]: Boogie Preprocessor took 46.08ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 119.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:25:52,280 INFO L158 Benchmark]: IcfgBuilder took 364.04ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 98.9MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:25:52,280 INFO L158 Benchmark]: TraceAbstraction took 144.35ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 86.0MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:25:52,280 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 167.8MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:25:52,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.93ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 123.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.87ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 122.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.08ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 119.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 364.04ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 98.9MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 144.35ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 86.0MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 167.8MB. Free memory is still 86.0MB. 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: 139]: 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 139. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; - UnprovableResult [Line: 118]: 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: 128]: 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: 173]: 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. - UnprovableResult [Line: 168]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 168]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 161]: 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. - UnprovableResult [Line: 156]: 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. - UnprovableResult [Line: 151]: 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: 151]: 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: 144]: 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. - UnprovableResult [Line: 139]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=67occurred 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, 3 NumberOfCodeBlocks, 3 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 [2025-02-07 18:25:52,301 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 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/floats-cbmc-regression/float22.i -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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:25:54,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:25:54,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:25:54,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:25:54,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:25:54,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:25:54,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:25:54,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:25:54,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:25:54,173 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:25:54,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:25:54,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:25:54,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:25:54,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:25:54,174 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:25:54,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:25:54,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:25:54,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:25:54,176 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:25:54,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:25:54,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:25:54,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:25:54,178 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:25:54,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:25:54,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:25:54,178 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 -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2025-02-07 18:25:54,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:25:54,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:25:54,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:25:54,430 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:25:54,430 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:25:54,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2025-02-07 18:25:55,530 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97c6c3225/61ba480535b6468b9a28b5ccbf5bc28d/FLAGc04e7e755 [2025-02-07 18:25:55,704 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:25:55,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2025-02-07 18:25:55,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97c6c3225/61ba480535b6468b9a28b5ccbf5bc28d/FLAGc04e7e755 [2025-02-07 18:25:55,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97c6c3225/61ba480535b6468b9a28b5ccbf5bc28d [2025-02-07 18:25:55,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:25:55,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:25:55,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:25:55,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:25:55,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:25:55,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78dec9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55, skipping insertion in model container [2025-02-07 18:25:55,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:25:55,879 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/floats-cbmc-regression/float22.i[2558,2571] [2025-02-07 18:25:55,885 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/floats-cbmc-regression/float22.i[2753,2766] [2025-02-07 18:25:55,886 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/floats-cbmc-regression/float22.i[2881,2894] [2025-02-07 18:25:55,887 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/floats-cbmc-regression/float22.i[3073,3086] [2025-02-07 18:25:55,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:25:55,903 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:25:55,924 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/floats-cbmc-regression/float22.i[2558,2571] [2025-02-07 18:25:55,926 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/floats-cbmc-regression/float22.i[2753,2766] [2025-02-07 18:25:55,927 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/floats-cbmc-regression/float22.i[2881,2894] [2025-02-07 18:25:55,928 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/floats-cbmc-regression/float22.i[3073,3086] [2025-02-07 18:25:55,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:25:55,938 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:25:55,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55 WrapperNode [2025-02-07 18:25:55,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:25:55,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:25:55,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:25:55,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:25:55,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,960 INFO L138 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2025-02-07 18:25:55,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:25:55,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:25:55,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:25:55,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:25:55,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,978 INFO L175 MemorySlicer]: Split 41 memory accesses to 9 slices as follows [2, 7, 5, 2, 2, 5, 4, 7, 7]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 3, 4, 1, 1, 4, 3, 5, 5]. [2025-02-07 18:25:55,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,993 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:55,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:25:56,001 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:25:56,001 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:25:56,001 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:25:56,002 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (1/1) ... [2025-02-07 18:25:56,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:25:56,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:25:56,029 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) [2025-02-07 18:25:56,031 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 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2025-02-07 18:25:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-02-07 18:25:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:25:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2025-02-07 18:25:56,048 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:25:56,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-07 18:25:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-02-07 18:25:56,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-02-07 18:25:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-02-07 18:25:56,140 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:25:56,141 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:25:56,182 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L124: havoc #t~mem1;call ULTIMATE.dealloc(~#c~0.base, ~#c~0.offset);havoc ~#c~0.base, ~#c~0.offset; [2025-02-07 18:25:56,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L134: havoc #t~mem2;havoc #t~mem3;havoc #t~mem4;havoc #t~mem5;call ULTIMATE.dealloc(~#c~1.base, ~#c~1.offset);havoc ~#c~1.base, ~#c~1.offset; [2025-02-07 18:25:56,274 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L151: call ULTIMATE.dealloc(testTwo_~#f1~1#1.base, testTwo_~#f1~1#1.offset);havoc testTwo_~#f1~1#1.base, testTwo_~#f1~1#1.offset;call ULTIMATE.dealloc(testTwo_~#f2~1#1.base, testTwo_~#f2~1#1.offset);havoc testTwo_~#f2~1#1.base, testTwo_~#f2~1#1.offset; [2025-02-07 18:25:56,274 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L139: call ULTIMATE.dealloc(testOne_~#f1~0#1.base, testOne_~#f1~0#1.offset);havoc testOne_~#f1~0#1.base, testOne_~#f1~0#1.offset;call ULTIMATE.dealloc(testOne_~#f2~0#1.base, testOne_~#f2~0#1.offset);havoc testOne_~#f2~0#1.base, testOne_~#f2~0#1.offset; [2025-02-07 18:25:56,274 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L168: call ULTIMATE.dealloc(testThree_~#f1~2#1.base, testThree_~#f1~2#1.offset);havoc testThree_~#f1~2#1.base, testThree_~#f1~2#1.offset;call ULTIMATE.dealloc(testThree_~#f2~2#1.base, testThree_~#f2~2#1.offset);havoc testThree_~#f2~2#1.base, testThree_~#f2~2#1.offset; [2025-02-07 18:25:56,310 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-07 18:25:56,310 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:25:56,316 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:25:56,316 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:25:56,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:56 BoogieIcfgContainer [2025-02-07 18:25:56,316 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:25:56,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:25:56,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:25:56,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:25:56,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:25:55" (1/3) ... [2025-02-07 18:25:56,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0d803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:25:56, skipping insertion in model container [2025-02-07 18:25:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:25:55" (2/3) ... [2025-02-07 18:25:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0d803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:25:56, skipping insertion in model container [2025-02-07 18:25:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:56" (3/3) ... [2025-02-07 18:25:56,325 INFO L128 eAbstractionObserver]: Analyzing ICFG float22.i [2025-02-07 18:25:56,334 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:25:56,335 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float22.i that has 3 procedures, 43 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-07 18:25:56,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:25:56,376 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;@46f53876, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:25:56,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-07 18:25:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 18:25:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-07 18:25:56,382 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:25:56,382 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:25:56,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-02-07 18:25:56,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:25:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash 355209102, now seen corresponding path program 1 times [2025-02-07 18:25:56,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:25:56,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756428131] [2025-02-07 18:25:56,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:25:56,392 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 [2025-02-07 18:25:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:25:56,394 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) [2025-02-07 18:25:56,396 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 [2025-02-07 18:25:56,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-07 18:25:56,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-07 18:25:56,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:25:56,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:25:56,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-07 18:25:56,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:25:56,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2025-02-07 18:25:56,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 18:25:56,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2025-02-07 18:25:56,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 1 [2025-02-07 18:25:56,712 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-02-07 18:25:56,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 28 [2025-02-07 18:25:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:25:56,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:25:56,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:25:56,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756428131] [2025-02-07 18:25:56,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756428131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:25:56,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:25:56,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-07 18:25:56,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855739730] [2025-02-07 18:25:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:25:56,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-07 18:25:56,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:25:56,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-07 18:25:56,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-07 18:25:56,773 INFO L87 Difference]: Start difference. First operand has 43 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:25:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:25:56,920 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2025-02-07 18:25:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-07 18:25:56,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2025-02-07 18:25:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:25:56,925 INFO L225 Difference]: With dead ends: 81 [2025-02-07 18:25:56,925 INFO L226 Difference]: Without dead ends: 40 [2025-02-07 18:25:56,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-07 18:25:56,928 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 36 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 18:25:56,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 204 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 18:25:56,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2025-02-07 18:25:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2025-02-07 18:25:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 18:25:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2025-02-07 18:25:56,950 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 13 [2025-02-07 18:25:56,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:25:56,951 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2025-02-07 18:25:56,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:25:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2025-02-07 18:25:56,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-07 18:25:56,952 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:25:56,952 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:25:56,962 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 (2)] Forceful destruction successful, exit code 0 [2025-02-07 18:25:57,152 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 [2025-02-07 18:25:57,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-02-07 18:25:57,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:25:57,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1936891160, now seen corresponding path program 1 times [2025-02-07 18:25:57,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:25:57,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589634408] [2025-02-07 18:25:57,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:25:57,154 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 [2025-02-07 18:25:57,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:25:57,156 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) [2025-02-07 18:25:57,157 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 [2025-02-07 18:25:57,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-07 18:25:57,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-07 18:25:57,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:25:57,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:25:57,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-07 18:25:57,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:25:57,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 1 [2025-02-07 18:25:57,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2025-02-07 18:25:57,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 18:25:57,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2025-02-07 18:25:57,550 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-02-07 18:25:57,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 28 [2025-02-07 18:25:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-07 18:25:57,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:25:57,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:25:57,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589634408] [2025-02-07 18:25:57,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589634408] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:25:57,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:25:57,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-07 18:25:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523109913] [2025-02-07 18:25:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:25:57,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-07 18:25:57,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:25:57,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-07 18:25:57,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-07 18:25:57,570 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-07 18:26:01,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:26:01,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:26:01,921 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2025-02-07 18:26:01,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-07 18:26:01,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2025-02-07 18:26:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:26:01,923 INFO L225 Difference]: With dead ends: 46 [2025-02-07 18:26:01,923 INFO L226 Difference]: Without dead ends: 44 [2025-02-07 18:26:01,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-07 18:26:01,923 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-02-07 18:26:01,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 154 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2025-02-07 18:26:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-02-07 18:26:01,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2025-02-07 18:26:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 18:26:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2025-02-07 18:26:01,929 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 26 [2025-02-07 18:26:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:26:01,929 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2025-02-07 18:26:01,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-07 18:26:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2025-02-07 18:26:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-07 18:26:01,930 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:26:01,930 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:26:01,935 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 [2025-02-07 18:26:02,134 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 [2025-02-07 18:26:02,134 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-02-07 18:26:02,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:26:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1422301605, now seen corresponding path program 1 times [2025-02-07 18:26:02,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:26:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341548811] [2025-02-07 18:26:02,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:26:02,135 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 [2025-02-07 18:26:02,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:26:02,138 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) [2025-02-07 18:26:02,139 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 [2025-02-07 18:26:02,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-07 18:26:02,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-07 18:26:02,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:26:02,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:26:02,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-07 18:26:02,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:26:02,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-07 18:26:02,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2025-02-07 18:26:02,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-07 18:26:02,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2025-02-07 18:26:02,474 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-02-07 18:26:02,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 28 [2025-02-07 18:26:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-07 18:26:02,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:26:02,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:26:02,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341548811] [2025-02-07 18:26:02,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341548811] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:26:02,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:26:02,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-07 18:26:02,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580142673] [2025-02-07 18:26:02,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:26:02,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-07 18:26:02,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:26:02,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-07 18:26:02,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-07 18:26:02,503 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-07 18:26:06,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:26:10,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:26:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:26:10,621 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2025-02-07 18:26:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-07 18:26:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2025-02-07 18:26:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:26:10,624 INFO L225 Difference]: With dead ends: 44 [2025-02-07 18:26:10,625 INFO L226 Difference]: Without dead ends: 42 [2025-02-07 18:26:10,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-07 18:26:10,625 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2025-02-07 18:26:10,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 189 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2025-02-07 18:26:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-02-07 18:26:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2025-02-07 18:26:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 18:26:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2025-02-07 18:26:10,636 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 37 [2025-02-07 18:26:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:26:10,637 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2025-02-07 18:26:10,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-07 18:26:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2025-02-07 18:26:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-07 18:26:10,638 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:26:10,639 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:26:10,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-02-07 18:26:10,839 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 [2025-02-07 18:26:10,840 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-02-07 18:26:10,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:26:10,841 INFO L85 PathProgramCache]: Analyzing trace with hash -802700467, now seen corresponding path program 1 times [2025-02-07 18:26:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:26:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586080509] [2025-02-07 18:26:10,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:26:10,844 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 [2025-02-07 18:26:10,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:26:10,848 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2025-02-07 18:26:10,849 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 (5)] Waiting until timeout for monitored process [2025-02-07 18:26:10,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-07 18:26:11,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-07 18:26:11,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:26:11,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:26:11,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-07 18:26:11,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:26:11,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-07 18:26:11,209 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-02-07 18:26:11,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 28 [2025-02-07 18:26:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-07 18:26:11,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:26:11,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:26:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586080509] [2025-02-07 18:26:11,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586080509] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:26:11,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:26:11,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-07 18:26:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783459081] [2025-02-07 18:26:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:26:11,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-07 18:26:11,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:26:11,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-07 18:26:11,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-07 18:26:11,241 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-07 18:26:15,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-07 18:26:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:26:15,337 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2025-02-07 18:26:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-07 18:26:15,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2025-02-07 18:26:15,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:26:15,337 INFO L225 Difference]: With dead ends: 45 [2025-02-07 18:26:15,337 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 18:26:15,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-07 18:26:15,338 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-07 18:26:15,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 202 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-02-07 18:26:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 18:26:15,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 18:26:15,339 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) [2025-02-07 18:26:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 18:26:15,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2025-02-07 18:26:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:26:15,339 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 18:26:15,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-07 18:26:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 18:26:15,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:26:15,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-07 18:26:15,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-02-07 18:26:15,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2025-02-07 18:26:15,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-02-07 18:26:15,350 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 (5)] Forceful destruction successful, exit code 0 [2025-02-07 18:26:15,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2025-02-07 18:26:15,546 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-07 18:26:15,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 18:26:15,818 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:26:15,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:26:15 BoogieIcfgContainer [2025-02-07 18:26:15,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:26:15,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:26:15,830 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:26:15,830 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:26:15,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:25:56" (3/4) ... [2025-02-07 18:26:15,836 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:26:15,840 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2025-02-07 18:26:15,840 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure returnsField [2025-02-07 18:26:15,844 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-07 18:26:15,845 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-07 18:26:15,845 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 18:26:15,845 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:26:15,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:26:15,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:26:15,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:26:15,912 INFO L158 Benchmark]: Toolchain (without parser) took 20175.94ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 52.3MB in the end (delta: 38.9MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2025-02-07 18:26:15,912 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:26:15,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.08ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:26:15,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.76ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:26:15,913 INFO L158 Benchmark]: Boogie Preprocessor took 39.68ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:26:15,913 INFO L158 Benchmark]: IcfgBuilder took 315.59ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 52.3MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 18:26:15,914 INFO L158 Benchmark]: TraceAbstraction took 19511.13ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 58.0MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:26:15,914 INFO L158 Benchmark]: Witness Printer took 81.72ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 52.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:26:15,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.08ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.76ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.68ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 73.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 315.59ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 52.3MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 19511.13ms. Allocated memory is still 117.4MB. Free memory was 51.8MB in the beginning and 58.0MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.72ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 52.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 173]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 161]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 156]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 144]: 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 3 procedures, 43 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.2s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 16.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 749 SdHoareTripleChecker+Invalid, 16.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 610 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 139 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 16 QuantifiedInterpolants, 1174 SizeOfPredicates, 26 NumberOfNonLiveVariables, 840 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 78/78 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 18:26:15,951 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