./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:03:33,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:03:33,267 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-04 07:03:33,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:03:33,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:03:33,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:03:33,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:03:33,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:03:33,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:03:33,284 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:03:33,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:03:33,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:03:33,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:03:33,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:03:33,286 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:03:33,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:03:33,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:03:33,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:03:33,287 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/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 valid-memcleanup) ) 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 [2025-03-04 07:03:33,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:03:33,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:03:33,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:03:33,520 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:03:33,520 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:03:33,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2025-03-04 07:03:34,646 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99cbd0ed/b8acf8cd4a134499ad7995a491f21821/FLAG5388017ee [2025-03-04 07:03:34,875 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:03:34,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2025-03-04 07:03:34,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99cbd0ed/b8acf8cd4a134499ad7995a491f21821/FLAG5388017ee [2025-03-04 07:03:35,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99cbd0ed/b8acf8cd4a134499ad7995a491f21821 [2025-03-04 07:03:35,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:03:35,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:03:35,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:03:35,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:03:35,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:03:35,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d69ca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35, skipping insertion in model container [2025-03-04 07:03:35,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:03:35,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:03:35,494 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:03:35,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:03:35,565 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:03:35,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35 WrapperNode [2025-03-04 07:03:35,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:03:35,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:03:35,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:03:35,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:03:35,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,594 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 204 [2025-03-04 07:03:35,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:03:35,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:03:35,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:03:35,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:03:35,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,637 INFO L175 MemorySlicer]: Split 48 memory accesses to 3 slices as follows [40, 2, 6]. 83 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [0, 2, 1]. The 13 writes are split as follows [11, 0, 2]. [2025-03-04 07:03:35,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,649 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:03:35,652 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:03:35,652 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:03:35,652 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:03:35,652 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (1/1) ... [2025-03-04 07:03:35,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:03:35,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:35,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 07:03:35,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 07:03:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2025-03-04 07:03:35,701 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2025-03-04 07:03:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2025-03-04 07:03:35,701 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2025-03-04 07:03:35,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-04 07:03:35,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 07:03:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2025-03-04 07:03:35,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2025-03-04 07:03:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2025-03-04 07:03:35,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2025-03-04 07:03:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 07:03:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 07:03:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 07:03:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:03:35,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:03:35,820 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:03:35,821 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:03:35,844 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L597: havoc #t~ret12.base, #t~ret12.offset; [2025-03-04 07:03:35,920 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc #t~mem11.base, #t~mem11.offset;call ULTIMATE.dealloc(~#dll~0.base, ~#dll~0.offset);havoc ~#dll~0.base, ~#dll~0.offset; [2025-03-04 07:03:36,118 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc dll_create_master_#t~ret21#1.base, dll_create_master_#t~ret21#1.offset; [2025-03-04 07:03:36,142 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2025-03-04 07:03:36,142 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:03:36,150 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:03:36,150 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:03:36,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:03:36 BoogieIcfgContainer [2025-03-04 07:03:36,151 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:03:36,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:03:36,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:03:36,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:03:36,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:03:35" (1/3) ... [2025-03-04 07:03:36,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5fb3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:03:36, skipping insertion in model container [2025-03-04 07:03:36,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:03:35" (2/3) ... [2025-03-04 07:03:36,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5fb3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:03:36, skipping insertion in model container [2025-03-04 07:03:36,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:03:36" (3/3) ... [2025-03-04 07:03:36,158 INFO L128 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2025-03-04 07:03:36,169 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:03:36,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll_of_dll-2.i that has 7 procedures, 131 locations, 1 initial locations, 24 loop locations, and 2 error locations. [2025-03-04 07:03:36,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:03:36,218 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=None, 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;@510efd5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:03:36,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 07:03:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 98 states have (on average 1.6224489795918366) internal successors, (159), 119 states have internal predecessors, (159), 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) [2025-03-04 07:03:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-04 07:03:36,230 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:03:36,230 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, 1] [2025-03-04 07:03:36,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:03:36,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:03:36,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1136279108, now seen corresponding path program 1 times [2025-03-04 07:03:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:03:36,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004893458] [2025-03-04 07:03:36,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:36,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:03:36,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 07:03:36,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 07:03:36,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:36,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 07:03:36,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:03:36,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004893458] [2025-03-04 07:03:36,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004893458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:03:36,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534632476] [2025-03-04 07:03:36,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:36,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:36,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:36,438 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:03:36,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 07:03:36,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 07:03:36,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 07:03:36,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:36,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:36,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 07:03:36,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:03:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 07:03:36,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:03:36,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534632476] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:03:36,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 07:03:36,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 07:03:36,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397887922] [2025-03-04 07:03:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:03:36,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:03:36,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:03:36,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:03:36,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:03:36,611 INFO L87 Difference]: Start difference. First operand has 131 states, 98 states have (on average 1.6224489795918366) internal successors, (159), 119 states have internal predecessors, (159), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2025-03-04 07:03:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:03:36,625 INFO L93 Difference]: Finished difference Result 128 states and 158 transitions. [2025-03-04 07:03:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:03:36,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 39 [2025-03-04 07:03:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:03:36,631 INFO L225 Difference]: With dead ends: 128 [2025-03-04 07:03:36,631 INFO L226 Difference]: Without dead ends: 126 [2025-03-04 07:03:36,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:03:36,633 INFO L435 NwaCegarLoop]: 158 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, 158 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 [2025-03-04 07:03:36,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:03:36,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-03-04 07:03:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2025-03-04 07:03:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 114 states have internal predecessors, (122), 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) [2025-03-04 07:03:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2025-03-04 07:03:36,661 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 39 [2025-03-04 07:03:36,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:03:36,661 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2025-03-04 07:03:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2025-03-04 07:03:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2025-03-04 07:03:36,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-04 07:03:36,663 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:03:36,663 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, 1, 1] [2025-03-04 07:03:36,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 07:03:36,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 07:03:36,864 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:03:36,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:03:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1070337962, now seen corresponding path program 1 times [2025-03-04 07:03:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:03:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60269202] [2025-03-04 07:03:36,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:03:36,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 07:03:36,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 07:03:36,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:36,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:03:37,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:03:37,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60269202] [2025-03-04 07:03:37,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60269202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:03:37,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601595432] [2025-03-04 07:03:37,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:37,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:37,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:03:37,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 07:03:37,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 07:03:37,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 07:03:37,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:37,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:37,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 07:03:37,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:03:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:03:37,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:03:37,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601595432] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:03:37,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 07:03:37,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-04 07:03:37,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573214588] [2025-03-04 07:03:37,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:03:37,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:03:37,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:03:37,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:03:37,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-04 07:03:37,846 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:03:37,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:03:37,945 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2025-03-04 07:03:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:03:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2025-03-04 07:03:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:03:37,949 INFO L225 Difference]: With dead ends: 139 [2025-03-04 07:03:37,951 INFO L226 Difference]: Without dead ends: 139 [2025-03-04 07:03:37,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 07:03:37,952 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 14 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:03:37,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 582 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:03:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-03-04 07:03:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-03-04 07:03:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 122 states have internal predecessors, (131), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 07:03:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 171 transitions. [2025-03-04 07:03:37,963 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 171 transitions. Word has length 40 [2025-03-04 07:03:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:03:37,964 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 171 transitions. [2025-03-04 07:03:37,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:03:37,964 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 171 transitions. [2025-03-04 07:03:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-04 07:03:37,966 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:03:37,966 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:03:37,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 07:03:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 07:03:38,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:03:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:03:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1003792470, now seen corresponding path program 1 times [2025-03-04 07:03:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:03:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901713278] [2025-03-04 07:03:38,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:03:38,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 07:03:38,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 07:03:38,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:38,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-04 07:03:38,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:03:38,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901713278] [2025-03-04 07:03:38,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901713278] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:03:38,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218152965] [2025-03-04 07:03:39,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:39,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:39,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:39,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:03:39,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 07:03:39,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 07:03:39,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 07:03:39,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:39,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:39,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-04 07:03:39,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:03:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 07:03:39,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:03:39,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218152965] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:03:39,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 07:03:39,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 13 [2025-03-04 07:03:39,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469635038] [2025-03-04 07:03:39,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:03:39,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 07:03:39,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:03:39,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 07:03:39,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 07:03:39,360 INFO L87 Difference]: Start difference. First operand 139 states and 171 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-04 07:03:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:03:39,695 INFO L93 Difference]: Finished difference Result 143 states and 176 transitions. [2025-03-04 07:03:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 07:03:39,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2025-03-04 07:03:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:03:39,697 INFO L225 Difference]: With dead ends: 143 [2025-03-04 07:03:39,697 INFO L226 Difference]: Without dead ends: 143 [2025-03-04 07:03:39,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2025-03-04 07:03:39,698 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 49 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:03:39,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 604 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:03:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-04 07:03:39,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2025-03-04 07:03:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 126 states have internal predecessors, (134), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (15), 11 states have call predecessors, (15), 13 states have call successors, (15) [2025-03-04 07:03:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2025-03-04 07:03:39,705 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 112 [2025-03-04 07:03:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:03:39,705 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2025-03-04 07:03:39,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-04 07:03:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2025-03-04 07:03:39,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-04 07:03:39,706 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:03:39,706 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, 1, 1] [2025-03-04 07:03:39,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 07:03:39,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:39,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:03:39,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:03:39,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1493627446, now seen corresponding path program 1 times [2025-03-04 07:03:39,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:03:39,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050700537] [2025-03-04 07:03:39,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:03:39,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 07:03:39,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 07:03:39,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:39,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-04 07:03:40,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:03:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050700537] [2025-03-04 07:03:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050700537] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:03:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485903065] [2025-03-04 07:03:40,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:40,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:40,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:03:40,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 07:03:40,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 07:03:40,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 07:03:40,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:40,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:40,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-03-04 07:03:40,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:03:40,928 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 [2025-03-04 07:03:40,983 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 [2025-03-04 07:03:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-04 07:03:41,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:03:41,333 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 [2025-03-04 07:03:41,344 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 [2025-03-04 07:03:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-04 07:03:41,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485903065] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:03:41,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 07:03:41,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 24 [2025-03-04 07:03:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123188048] [2025-03-04 07:03:41,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 07:03:41,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 07:03:41,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:03:41,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 07:03:41,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2025-03-04 07:03:41,473 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 8 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2025-03-04 07:03:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:03:42,591 INFO L93 Difference]: Finished difference Result 225 states and 272 transitions. [2025-03-04 07:03:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 07:03:42,591 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 8 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) Word has length 112 [2025-03-04 07:03:42,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:03:42,593 INFO L225 Difference]: With dead ends: 225 [2025-03-04 07:03:42,593 INFO L226 Difference]: Without dead ends: 212 [2025-03-04 07:03:42,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=1614, Unknown=0, NotChecked=0, Total=1806 [2025-03-04 07:03:42,598 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 177 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 07:03:42,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2128 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 07:03:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-03-04 07:03:42,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2025-03-04 07:03:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 139 states have (on average 1.2374100719424461) internal successors, (172), 158 states have internal predecessors, (172), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (17), 13 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-04 07:03:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 218 transitions. [2025-03-04 07:03:42,613 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 218 transitions. Word has length 112 [2025-03-04 07:03:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:03:42,613 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 218 transitions. [2025-03-04 07:03:42,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 20 states have internal predecessors, (67), 8 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2025-03-04 07:03:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 218 transitions. [2025-03-04 07:03:42,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-04 07:03:42,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:03:42,618 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, 1, 1] [2025-03-04 07:03:42,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 07:03:42,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:42,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:03:42,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:03:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1674697267, now seen corresponding path program 1 times [2025-03-04 07:03:42,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:03:42,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976888515] [2025-03-04 07:03:42,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:42,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:03:42,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-04 07:03:42,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-04 07:03:42,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:42,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 85 proven. 35 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 07:03:49,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:03:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976888515] [2025-03-04 07:03:49,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976888515] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:03:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645511836] [2025-03-04 07:03:49,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:03:49,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:03:49,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:03:49,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:03:49,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 07:03:49,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-04 07:03:49,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-04 07:03:49,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:03:49,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:03:49,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 197 conjuncts are in the unsatisfiable core [2025-03-04 07:03:49,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:03:49,489 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 [2025-03-04 07:03:49,491 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 [2025-03-04 07:03:49,640 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 [2025-03-04 07:03:49,774 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 11 treesize of output 7 [2025-03-04 07:03:49,852 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2025-03-04 07:03:49,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2025-03-04 07:03:50,035 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 [2025-03-04 07:03:50,216 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 [2025-03-04 07:03:50,388 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 66 treesize of output 42 [2025-03-04 07:03:50,414 INFO L349 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2025-03-04 07:03:50,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 69 [2025-03-04 07:03:50,445 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 27 treesize of output 25 [2025-03-04 07:03:55,474 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 134 treesize of output 86 [2025-03-04 07:03:58,984 INFO L349 Elim1Store]: treesize reduction 211, result has 24.4 percent of original size [2025-03-04 07:03:58,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 105 treesize of output 181 [2025-03-04 07:03:59,150 INFO L224 Elim1Store]: Index analysis took 129 ms [2025-03-04 07:03:59,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:03:59,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 189 [2025-03-04 07:04:05,559 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 7 treesize of output 3 [2025-03-04 07:04:05,580 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 7 treesize of output 3 [2025-03-04 07:04:05,663 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 7 treesize of output 3 [2025-03-04 07:04:05,683 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 7 treesize of output 3 [2025-03-04 07:04:18,684 INFO L349 Elim1Store]: treesize reduction 327, result has 1.5 percent of original size [2025-03-04 07:04:18,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 64 treesize of output 34 [2025-03-04 07:04:19,918 INFO L349 Elim1Store]: treesize reduction 505, result has 10.6 percent of original size [2025-03-04 07:04:19,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 150 treesize of output 217 [2025-03-04 07:04:24,237 INFO L349 Elim1Store]: treesize reduction 148, result has 0.7 percent of original size [2025-03-04 07:04:24,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 68 treesize of output 25 [2025-03-04 07:04:24,261 WARN L214 Elim1Store]: Array PQE input equivalent to false [2025-03-04 07:04:24,522 INFO L224 Elim1Store]: Index analysis took 161 ms [2025-03-04 07:04:24,712 INFO L349 Elim1Store]: treesize reduction 245, result has 0.4 percent of original size [2025-03-04 07:04:24,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 1 [2025-03-04 07:04:24,901 INFO L224 Elim1Store]: Index analysis took 105 ms [2025-03-04 07:04:25,109 INFO L349 Elim1Store]: treesize reduction 305, result has 0.3 percent of original size [2025-03-04 07:04:25,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 64 treesize of output 1 [2025-03-04 07:04:25,234 INFO L349 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2025-03-04 07:04:25,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 1 [2025-03-04 07:04:25,348 INFO L349 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2025-03-04 07:04:25,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 1 [2025-03-04 07:04:29,053 INFO L349 Elim1Store]: treesize reduction 4116, result has 0.0 percent of original size [2025-03-04 07:04:29,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 350 treesize of output 1 [2025-03-04 07:04:29,255 INFO L224 Elim1Store]: Index analysis took 185 ms [2025-03-04 07:04:29,358 INFO L349 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2025-03-04 07:04:29,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 34 [2025-03-04 07:04:29,538 INFO L349 Elim1Store]: treesize reduction 179, result has 0.6 percent of original size [2025-03-04 07:04:29,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 1 [2025-03-04 07:04:29,978 INFO L349 Elim1Store]: treesize reduction 1092, result has 0.1 percent of original size [2025-03-04 07:04:29,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 1 [2025-03-04 07:04:34,919 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 11 treesize of output 7 [2025-03-04 07:04:34,947 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 [2025-03-04 07:04:35,138 INFO L349 Elim1Store]: treesize reduction 61, result has 32.2 percent of original size [2025-03-04 07:04:35,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 84 [2025-03-04 07:04:37,273 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 101 treesize of output 77 [2025-03-04 07:04:37,291 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 80 treesize of output 68 [2025-03-04 07:04:38,260 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 20 treesize of output 12 [2025-03-04 07:04:46,460 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 [2025-03-04 07:04:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 07:04:46,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:04:58,368 INFO L349 Elim1Store]: treesize reduction 37, result has 42.2 percent of original size [2025-03-04 07:04:58,368 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 41 [2025-03-04 07:04:58,419 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2025-03-04 07:04:58,420 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 371 treesize of output 163 [2025-03-04 07:04:58,443 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 56 treesize of output 54 [2025-03-04 07:04:58,463 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 54 treesize of output 50 [2025-03-04 07:04:58,489 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:04:58,585 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:04:58,655 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2025-03-04 07:04:58,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2025-03-04 07:05:04,181 INFO L349 Elim1Store]: treesize reduction 279, result has 42.9 percent of original size [2025-03-04 07:05:04,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 86814 treesize of output 62982 [2025-03-04 07:05:04,254 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:05:04,258 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:05:04,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:05:04,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2175 treesize of output 2181 [2025-03-04 07:05:04,480 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 2244 treesize of output 2120 [2025-03-04 07:05:04,547 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 2724 treesize of output 2560 [2025-03-04 07:05:04,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:05:04,689 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 1909 treesize of output 1902 [2025-03-04 07:05:04,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:05:04,795 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 1893 treesize of output 1894 [2025-03-04 07:05:04,861 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:05:04,957 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:05:05,027 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2025-03-04 07:05:05,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 74 [2025-03-04 07:05:09,378 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 10 treesize of output 8 [2025-03-04 07:05:10,585 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 10 treesize of output 8 [2025-03-04 07:05:10,618 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 24 treesize of output 20