./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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 valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:56:49,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:56:49,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:56:49,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:56:49,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:56:49,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:56:49,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:56:49,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:56:49,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:56:49,557 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:56:49,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:56:49,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:56:49,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:56:49,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:56:49,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:56:49,559 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:56:49,560 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:56:49,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:56:49,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:56:49,560 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 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 -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2025-02-06 09:56:49,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:56:49,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:56:49,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:56:49,843 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:56:49,843 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:56:49,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2025-02-06 09:56:51,092 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f19d2f440/90d2d7e6dde74cf9aef769af58375326/FLAG8c8d3e049 [2025-02-06 09:56:52,143 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:56:52,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2025-02-06 09:56:52,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f19d2f440/90d2d7e6dde74cf9aef769af58375326/FLAG8c8d3e049 [2025-02-06 09:56:52,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f19d2f440/90d2d7e6dde74cf9aef769af58375326 [2025-02-06 09:56:52,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:56:52,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:56:52,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:52,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:56:52,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:56:52,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f1f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52, skipping insertion in model container [2025-02-06 09:56:52,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:56:52,585 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,617 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,621 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,625 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,630 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,643 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:52,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:52,667 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:56:52,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:52,778 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:56:52,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52 WrapperNode [2025-02-06 09:56:52,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:52,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:56:52,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:56:52,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:56:52,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,845 INFO L138 Inliner]: procedures = 176, calls = 180, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 817 [2025-02-06 09:56:52,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:56:52,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:56:52,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:56:52,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:56:52,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,914 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2025-02-06 09:56:52,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:56:52,973 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:56:52,974 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:56:52,974 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:56:52,974 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (1/1) ... [2025-02-06 09:56:52,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:56:52,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:53,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:56:53,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:56:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 09:56:53,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:56:53,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:56:53,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:56:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:56:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:56:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 09:56:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:56:53,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:56:53,206 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:56:53,208 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:56:54,340 INFO L? ?]: Removed 210 outVars from TransFormulas that were not future-live. [2025-02-06 09:56:54,340 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:56:54,388 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:56:54,388 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-06 09:56:54,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:56:54 BoogieIcfgContainer [2025-02-06 09:56:54,389 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:56:54,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:56:54,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:56:54,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:56:54,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:56:52" (1/3) ... [2025-02-06 09:56:54,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29abc5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:56:54, skipping insertion in model container [2025-02-06 09:56:54,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:52" (2/3) ... [2025-02-06 09:56:54,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29abc5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:56:54, skipping insertion in model container [2025-02-06 09:56:54,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:56:54" (3/3) ... [2025-02-06 09:56:54,397 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2025-02-06 09:56:54,410 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:56:54,412 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test1-1.i that has 4 procedures, 237 locations, 1 initial locations, 20 loop locations, and 2 error locations. [2025-02-06 09:56:54,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:56:54,469 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;@580d7c33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:56:54,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:56:54,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 233 states, 215 states have (on average 1.613953488372093) internal successors, (347), 227 states have internal predecessors, (347), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:56:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 09:56:54,478 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:54,478 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 09:56:54,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:54,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:54,482 INFO L85 PathProgramCache]: Analyzing trace with hash 415714535, now seen corresponding path program 1 times [2025-02-06 09:56:54,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:56:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111624651] [2025-02-06 09:56:54,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:54,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:56:54,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 09:56:54,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 09:56:54,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:54,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:56:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:56:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111624651] [2025-02-06 09:56:54,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111624651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:56:54,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:56:54,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:56:54,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626836899] [2025-02-06 09:56:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:56:54,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:56:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:56:54,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:56:54,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:56:54,715 INFO L87 Difference]: Start difference. First operand has 233 states, 215 states have (on average 1.613953488372093) internal successors, (347), 227 states have internal predecessors, (347), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:54,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:54,885 INFO L93 Difference]: Finished difference Result 424 states and 618 transitions. [2025-02-06 09:56:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:56:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-06 09:56:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:54,900 INFO L225 Difference]: With dead ends: 424 [2025-02-06 09:56:54,900 INFO L226 Difference]: Without dead ends: 422 [2025-02-06 09:56:54,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:56:54,904 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 272 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:54,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 664 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:56:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2025-02-06 09:56:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 231. [2025-02-06 09:56:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 214 states have (on average 1.4579439252336448) internal successors, (312), 225 states have internal predecessors, (312), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:56:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 338 transitions. [2025-02-06 09:56:54,961 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 338 transitions. Word has length 5 [2025-02-06 09:56:54,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:54,961 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 338 transitions. [2025-02-06 09:56:54,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 338 transitions. [2025-02-06 09:56:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-06 09:56:54,964 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:54,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:54,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:56:54,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:54,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash -301883775, now seen corresponding path program 1 times [2025-02-06 09:56:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:56:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21142144] [2025-02-06 09:56:54,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:54,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:56:55,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:56:55,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:56:55,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:55,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:56:55,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:56:55,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21142144] [2025-02-06 09:56:55,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21142144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:56:55,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:56:55,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:56:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289862199] [2025-02-06 09:56:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:56:55,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:56:55,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:56:55,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:56:55,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:56:55,479 INFO L87 Difference]: Start difference. First operand 231 states and 338 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:55,643 INFO L93 Difference]: Finished difference Result 234 states and 334 transitions. [2025-02-06 09:56:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:56:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2025-02-06 09:56:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:55,646 INFO L225 Difference]: With dead ends: 234 [2025-02-06 09:56:55,648 INFO L226 Difference]: Without dead ends: 234 [2025-02-06 09:56:55,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:56:55,650 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 105 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:55,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 780 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:56:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-06 09:56:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 231. [2025-02-06 09:56:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 214 states have (on average 1.425233644859813) internal successors, (305), 225 states have internal predecessors, (305), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:56:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 331 transitions. [2025-02-06 09:56:55,664 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 331 transitions. Word has length 79 [2025-02-06 09:56:55,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:55,668 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 331 transitions. [2025-02-06 09:56:55,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 331 transitions. [2025-02-06 09:56:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-06 09:56:55,670 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:55,671 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:55,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:56:55,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:55,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1176683131, now seen corresponding path program 1 times [2025-02-06 09:56:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:56:55,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812929203] [2025-02-06 09:56:55,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:55,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:56:55,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:56:55,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:56:55,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:55,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:56:55,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:56:55,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812929203] [2025-02-06 09:56:55,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812929203] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:56:55,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:56:55,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:56:55,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114229086] [2025-02-06 09:56:55,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:56:55,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:56:55,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:56:55,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:56:55,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:56:55,929 INFO L87 Difference]: Start difference. First operand 231 states and 331 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:56,047 INFO L93 Difference]: Finished difference Result 359 states and 518 transitions. [2025-02-06 09:56:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:56:56,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2025-02-06 09:56:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:56,051 INFO L225 Difference]: With dead ends: 359 [2025-02-06 09:56:56,051 INFO L226 Difference]: Without dead ends: 359 [2025-02-06 09:56:56,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:56:56,052 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 134 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:56,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 606 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:56:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2025-02-06 09:56:56,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2025-02-06 09:56:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 342 states have (on average 1.4385964912280702) internal successors, (492), 353 states have internal predecessors, (492), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:56:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 518 transitions. [2025-02-06 09:56:56,079 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 518 transitions. Word has length 79 [2025-02-06 09:56:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:56,080 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 518 transitions. [2025-02-06 09:56:56,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 518 transitions. [2025-02-06 09:56:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-06 09:56:56,082 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:56,082 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:56,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:56:56,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:56,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2053108611, now seen corresponding path program 1 times [2025-02-06 09:56:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:56:56,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278479321] [2025-02-06 09:56:56,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:56:56,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 09:56:56,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 09:56:56,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:56,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:56:56,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:56:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278479321] [2025-02-06 09:56:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278479321] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:56:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59296861] [2025-02-06 09:56:56,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:56,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:56,431 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) [2025-02-06 09:56:56,432 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 [2025-02-06 09:56:56,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 09:56:56,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 09:56:56,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:56,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:56,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:56:56,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:56:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:56:56,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:56:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:56:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59296861] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:56:57,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:56:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 09:56:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756555326] [2025-02-06 09:56:57,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:56:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 09:56:57,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:56:57,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 09:56:57,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:56:57,103 INFO L87 Difference]: Start difference. First operand 359 states and 518 transitions. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 09:56:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:57,347 INFO L93 Difference]: Finished difference Result 805 states and 1144 transitions. [2025-02-06 09:56:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:56:57,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 94 [2025-02-06 09:56:57,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:57,354 INFO L225 Difference]: With dead ends: 805 [2025-02-06 09:56:57,355 INFO L226 Difference]: Without dead ends: 805 [2025-02-06 09:56:57,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:56:57,356 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 1190 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:57,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1547 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:56:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2025-02-06 09:56:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2025-02-06 09:56:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 779 states have (on average 1.4120667522464698) internal successors, (1100), 790 states have internal predecessors, (1100), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-06 09:56:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1144 transitions. [2025-02-06 09:56:57,401 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1144 transitions. Word has length 94 [2025-02-06 09:56:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:57,402 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1144 transitions. [2025-02-06 09:56:57,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 09:56:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1144 transitions. [2025-02-06 09:56:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2025-02-06 09:56:57,408 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:57,409 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:57,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:56:57,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:57,615 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:57,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1111744575, now seen corresponding path program 1 times [2025-02-06 09:56:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:56:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66687250] [2025-02-06 09:56:57,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:56:57,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 316 statements into 1 equivalence classes. [2025-02-06 09:56:57,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 316 of 316 statements. [2025-02-06 09:56:57,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:57,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 4 proven. 322 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-02-06 09:56:58,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:56:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66687250] [2025-02-06 09:56:58,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66687250] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:56:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88121234] [2025-02-06 09:56:58,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:58,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:58,644 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) [2025-02-06 09:56:58,649 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 [2025-02-06 09:56:58,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 316 statements into 1 equivalence classes. [2025-02-06 09:56:59,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 316 of 316 statements. [2025-02-06 09:56:59,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:59,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:59,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:56:59,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:56:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:56:59,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:57:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:57:00,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88121234] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:57:00,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:57:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2025-02-06 09:57:00,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514548551] [2025-02-06 09:57:00,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:57:00,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 09:57:00,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:57:00,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 09:57:00,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2025-02-06 09:57:00,082 INFO L87 Difference]: Start difference. First operand 805 states and 1144 transitions. Second operand has 16 states, 16 states have (on average 51.375) internal successors, (822), 16 states have internal predecessors, (822), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 09:57:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:01,729 INFO L93 Difference]: Finished difference Result 1899 states and 2711 transitions. [2025-02-06 09:57:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 09:57:01,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 51.375) internal successors, (822), 16 states have internal predecessors, (822), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 316 [2025-02-06 09:57:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:01,745 INFO L225 Difference]: With dead ends: 1899 [2025-02-06 09:57:01,745 INFO L226 Difference]: Without dead ends: 1899 [2025-02-06 09:57:01,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=616, Unknown=0, NotChecked=0, Total=930 [2025-02-06 09:57:01,747 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 9697 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9697 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:01,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9697 Valid, 3338 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 09:57:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2025-02-06 09:57:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1877. [2025-02-06 09:57:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1851 states have (on average 1.4181523500810373) internal successors, (2625), 1862 states have internal predecessors, (2625), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-06 09:57:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2669 transitions. [2025-02-06 09:57:01,818 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2669 transitions. Word has length 316 [2025-02-06 09:57:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:01,818 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2669 transitions. [2025-02-06 09:57:01,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 51.375) internal successors, (822), 16 states have internal predecessors, (822), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 09:57:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2669 transitions. [2025-02-06 09:57:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2025-02-06 09:57:01,841 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:01,841 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2025-02-06 09:57:01,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:02,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:02,042 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:02,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:02,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1740607353, now seen corresponding path program 1 times [2025-02-06 09:57:02,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:57:02,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084010229] [2025-02-06 09:57:02,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:57:02,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 765 statements into 1 equivalence classes.