./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.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 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 02:40:30,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 02:40:31,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 02:40:31,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 02:40:31,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 02:40:31,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 02:40:31,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 02:40:31,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 02:40:31,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 02:40:31,055 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 02:40:31,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 02:40:31,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 02:40:31,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 02:40:31,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 02:40:31,056 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 02:40:31,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 02:40:31,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 02:40:31,057 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 02:40:31,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 02:40:31,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 02:40:31,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 02:40:31,058 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:40:31,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:40:31,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:40:31,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 02:40:31,059 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 02:40:31,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 02:40:31,060 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 -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2025-01-09 02:40:31,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 02:40:31,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 02:40:31,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 02:40:31,304 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 02:40:31,304 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 02:40:31,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2025-01-09 02:40:32,507 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8239af85/f940681b85ee4f6db000c4cce0dd3401/FLAGe4268ffdb [2025-01-09 02:40:32,808 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 02:40:32,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2025-01-09 02:40:32,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8239af85/f940681b85ee4f6db000c4cce0dd3401/FLAGe4268ffdb [2025-01-09 02:40:33,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8239af85/f940681b85ee4f6db000c4cce0dd3401 [2025-01-09 02:40:33,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 02:40:33,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 02:40:33,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 02:40:33,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 02:40:33,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 02:40:33,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfc6d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33, skipping insertion in model container [2025-01-09 02:40:33,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,177 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 02:40:33,355 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/heap-manipulation/dll_of_dll-2.i[22634,22647] [2025-01-09 02:40:33,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:40:33,390 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 02:40:33,411 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/heap-manipulation/dll_of_dll-2.i[22634,22647] [2025-01-09 02:40:33,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 02:40:33,444 INFO L204 MainTranslator]: Completed translation [2025-01-09 02:40:33,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33 WrapperNode [2025-01-09 02:40:33,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 02:40:33,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 02:40:33,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 02:40:33,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 02:40:33,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,477 INFO L138 Inliner]: procedures = 140, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 199 [2025-01-09 02:40:33,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 02:40:33,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 02:40:33,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 02:40:33,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 02:40:33,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,516 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [2, 6, 40]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 13 writes are split as follows [0, 2, 11]. [2025-01-09 02:40:33,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 02:40:33,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 02:40:33,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 02:40:33,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 02:40:33,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (1/1) ... [2025-01-09 02:40:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 02:40:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:40:33,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 02:40:33,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 02:40:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2025-01-09 02:40:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2025-01-09 02:40:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2025-01-09 02:40:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2025-01-09 02:40:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 02:40:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 02:40:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2025-01-09 02:40:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 02:40:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2025-01-09 02:40:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2025-01-09 02:40:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2025-01-09 02:40:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2025-01-09 02:40:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 02:40:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 02:40:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 02:40:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 02:40:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 02:40:33,741 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 02:40:33,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 02:40:33,994 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2025-01-09 02:40:33,994 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 02:40:34,009 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 02:40:34,009 INFO L312 CfgBuilder]: Removed 15 assume(true) statements. [2025-01-09 02:40:34,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:40:34 BoogieIcfgContainer [2025-01-09 02:40:34,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 02:40:34,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 02:40:34,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 02:40:34,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 02:40:34,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:40:33" (1/3) ... [2025-01-09 02:40:34,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c8cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:40:34, skipping insertion in model container [2025-01-09 02:40:34,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:40:33" (2/3) ... [2025-01-09 02:40:34,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c8cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:40:34, skipping insertion in model container [2025-01-09 02:40:34,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:40:34" (3/3) ... [2025-01-09 02:40:34,018 INFO L128 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2025-01-09 02:40:34,030 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 02:40:34,031 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll_of_dll-2.i that has 7 procedures, 127 locations, 1 initial locations, 24 loop locations, and 1 error locations. [2025-01-09 02:40:34,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 02:40:34,093 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;@207bb1f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 02:40:34,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 02:40:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 95 states have (on average 1.6210526315789473) internal successors, (154), 115 states have internal predecessors, (154), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2025-01-09 02:40:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-09 02:40:34,104 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:40:34,105 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 02:40:34,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:40:34,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:40:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash 929467139, now seen corresponding path program 1 times [2025-01-09 02:40:34,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:40:34,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440678575] [2025-01-09 02:40:34,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:34,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:40:34,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 02:40:34,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 02:40:34,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:34,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 02:40:34,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 02:40:34,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440678575] [2025-01-09 02:40:34,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440678575] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 02:40:34,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445630939] [2025-01-09 02:40:34,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:34,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:34,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:40:34,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 02:40:34,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 02:40:34,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 02:40:34,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 02:40:34,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:34,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:34,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 02:40:34,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 02:40:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-09 02:40:34,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 02:40:34,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445630939] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 02:40:34,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 02:40:34,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 02:40:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805048908] [2025-01-09 02:40:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 02:40:34,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 02:40:34,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 02:40:34,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 02:40:34,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:40:34,562 INFO L87 Difference]: Start difference. First operand has 127 states, 95 states have (on average 1.6210526315789473) internal successors, (154), 115 states have internal predecessors, (154), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 02:40:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 02:40:34,593 INFO L93 Difference]: Finished difference Result 249 states and 409 transitions. [2025-01-09 02:40:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 02:40:34,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2025-01-09 02:40:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 02:40:34,600 INFO L225 Difference]: With dead ends: 249 [2025-01-09 02:40:34,600 INFO L226 Difference]: Without dead ends: 119 [2025-01-09 02:40:34,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 02:40:34,608 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 02:40:34,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 02:40:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-01-09 02:40:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2025-01-09 02:40:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 107 states have internal predecessors, (114), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 02:40:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 148 transitions. [2025-01-09 02:40:34,652 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 148 transitions. Word has length 37 [2025-01-09 02:40:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 02:40:34,653 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 148 transitions. [2025-01-09 02:40:34,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 02:40:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 148 transitions. [2025-01-09 02:40:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-09 02:40:34,656 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:40:34,657 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 02:40:34,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 02:40:34,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 02:40:34,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:40:34,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:40:34,861 INFO L85 PathProgramCache]: Analyzing trace with hash 266694961, now seen corresponding path program 1 times [2025-01-09 02:40:34,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:40:34,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603944228] [2025-01-09 02:40:34,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:40:34,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-09 02:40:34,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-09 02:40:34,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:34,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 02:40:35,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 02:40:35,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603944228] [2025-01-09 02:40:35,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603944228] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 02:40:35,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346362313] [2025-01-09 02:40:35,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:35,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:40:35,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 02:40:35,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 02:40:35,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-09 02:40:35,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-09 02:40:35,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:35,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:35,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 02:40:35,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 02:40:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 02:40:35,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 02:40:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 02:40:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346362313] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 02:40:36,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 02:40:36,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2025-01-09 02:40:36,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045634163] [2025-01-09 02:40:36,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 02:40:36,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 02:40:36,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 02:40:36,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 02:40:36,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2025-01-09 02:40:36,095 INFO L87 Difference]: Start difference. First operand 119 states and 148 transitions. Second operand has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (8), 3 states have call predecessors, (8), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-09 02:40:36,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 02:40:36,902 INFO L93 Difference]: Finished difference Result 259 states and 338 transitions. [2025-01-09 02:40:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-09 02:40:36,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (8), 3 states have call predecessors, (8), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 38 [2025-01-09 02:40:36,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 02:40:36,904 INFO L225 Difference]: With dead ends: 259 [2025-01-09 02:40:36,904 INFO L226 Difference]: Without dead ends: 143 [2025-01-09 02:40:36,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 02:40:36,906 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 73 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 02:40:36,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1140 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 02:40:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-01-09 02:40:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 142. [2025-01-09 02:40:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 124 states have internal predecessors, (132), 27 states have call successors, (27), 9 states have call predecessors, (27), 8 states have return successors, (14), 11 states have call predecessors, (14), 13 states have call successors, (14) [2025-01-09 02:40:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2025-01-09 02:40:36,917 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 38 [2025-01-09 02:40:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 02:40:36,917 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2025-01-09 02:40:36,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (8), 3 states have call predecessors, (8), 6 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-09 02:40:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2025-01-09 02:40:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 02:40:36,919 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:40:36,920 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 02:40:36,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 02:40:37,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:37,124 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:40:37,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:40:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1008739695, now seen corresponding path program 1 times [2025-01-09 02:40:37,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:40:37,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603385717] [2025-01-09 02:40:37,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:40:37,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 02:40:37,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 02:40:37,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:37,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-01-09 02:40:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 02:40:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603385717] [2025-01-09 02:40:38,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603385717] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 02:40:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406386726] [2025-01-09 02:40:38,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:38,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:38,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:40:38,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 02:40:38,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 02:40:38,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 02:40:38,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 02:40:38,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:38,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:38,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-01-09 02:40:38,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 02:40:38,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2025-01-09 02:40:38,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-01-09 02:40:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-01-09 02:40:38,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 02:40:38,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2025-01-09 02:40:38,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2025-01-09 02:40:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-01-09 02:40:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406386726] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 02:40:38,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 02:40:38,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 23 [2025-01-09 02:40:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401443723] [2025-01-09 02:40:38,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 02:40:38,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 02:40:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 02:40:38,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 02:40:38,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2025-01-09 02:40:38,835 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 23 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 19 states have internal predecessors, (64), 8 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2025-01-09 02:40:39,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 02:40:39,720 INFO L93 Difference]: Finished difference Result 354 states and 437 transitions. [2025-01-09 02:40:39,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-01-09 02:40:39,721 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 19 states have internal predecessors, (64), 8 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 110 [2025-01-09 02:40:39,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 02:40:39,722 INFO L225 Difference]: With dead ends: 354 [2025-01-09 02:40:39,723 INFO L226 Difference]: Without dead ends: 212 [2025-01-09 02:40:39,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=1475, Unknown=0, NotChecked=0, Total=1640 [2025-01-09 02:40:39,724 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 154 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 02:40:39,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1738 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 02:40:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-01-09 02:40:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2025-01-09 02:40:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 139 states have (on average 1.2302158273381294) internal successors, (171), 156 states have internal predecessors, (171), 29 states have call successors, (29), 12 states have call predecessors, (29), 11 states have return successors, (18), 13 states have call predecessors, (18), 15 states have call successors, (18) [2025-01-09 02:40:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2025-01-09 02:40:39,747 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 110 [2025-01-09 02:40:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 02:40:39,748 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2025-01-09 02:40:39,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 19 states have internal predecessors, (64), 8 states have call successors, (14), 4 states have call predecessors, (14), 7 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2025-01-09 02:40:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2025-01-09 02:40:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 02:40:39,753 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 02:40:39,753 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 02:40:39,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 02:40:39,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:39,954 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 02:40:39,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 02:40:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash -595333469, now seen corresponding path program 1 times [2025-01-09 02:40:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 02:40:39,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026886690] [2025-01-09 02:40:39,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 02:40:39,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 02:40:40,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 02:40:40,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:40,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 85 proven. 35 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 02:40:46,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 02:40:46,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026886690] [2025-01-09 02:40:46,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026886690] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 02:40:46,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248986283] [2025-01-09 02:40:46,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 02:40:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 02:40:46,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 02:40:46,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 02:40:46,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 02:40:46,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 02:40:46,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 02:40:46,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 02:40:46,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 02:40:46,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 233 conjuncts are in the unsatisfiable core [2025-01-09 02:40:46,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 02:40:46,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-01-09 02:40:46,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2025-01-09 02:40:46,879 INFO L349 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2025-01-09 02:40:46,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 55 [2025-01-09 02:40:46,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 02:40:46,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 66 treesize of output 62 [2025-01-09 02:40:46,953 WARN L873 $PredicateComparison]: unable to prove that (exists ((|##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| Int)) (= |c_#valid| (store |c_old(#valid)| |##fun~$Pointer$~TO~VOID_alloc_or_die_slave_~ptr~0#1.base| 1))) is different from true [2025-01-09 02:41:58,908 WARN L286 SmtUtils]: Spent 12.94s on a formula simplification. DAG size of input: 371 DAG size of output: 190 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-09 02:41:58,908 INFO L349 Elim1Store]: treesize reduction 799, result has 33.5 percent of original size [2025-01-09 02:41:58,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 871