./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed 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/uthash-2.0.2/uthash_SFH_test9-1.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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:36:09,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:36:10,048 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:36:10,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:36:10,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:36:10,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:36:10,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:36:10,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:36:10,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:36:10,072 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:36:10,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:36:10,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:36:10,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:36:10,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:36:10,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:36:10,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:36:10,075 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:36:10,075 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:36:10,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:36:10,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:36:10,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:36:10,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:36:10,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:36:10,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:36:10,076 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 -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2025-03-08 22:36:10,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:36:10,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:36:10,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:36:10,288 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:36:10,288 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:36:10,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2025-03-08 22:36:11,408 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e649d29e/f0084503623d4771a6ad28a586153d6e/FLAGd390316e3 [2025-03-08 22:36:11,731 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:36:11,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2025-03-08 22:36:11,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e649d29e/f0084503623d4771a6ad28a586153d6e/FLAGd390316e3 [2025-03-08 22:36:11,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e649d29e/f0084503623d4771a6ad28a586153d6e [2025-03-08 22:36:11,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:36:11,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:36:11,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:36:11,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:36:11,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:36:11,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:36:11" (1/1) ... [2025-03-08 22:36:11,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c6c362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:11, skipping insertion in model container [2025-03-08 22:36:11,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:36:11" (1/1) ... [2025-03-08 22:36:12,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:36:12,329 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,342 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,344 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,346 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,348 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,361 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,362 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,363 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,363 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:36:12,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:36:12,379 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:36:12,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:36:12,506 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:36:12,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12 WrapperNode [2025-03-08 22:36:12,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:36:12,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:36:12,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:36:12,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:36:12,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,610 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3244 [2025-03-08 22:36:12,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:36:12,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:36:12,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:36:12,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:36:12,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,709 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2025-03-08 22:36:12,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:36:12,790 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:36:12,790 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:36:12,790 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:36:12,791 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (1/1) ... [2025-03-08 22:36:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:36:12,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:12,814 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) [2025-03-08 22:36:12,819 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 [2025-03-08 22:36:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:36:12,836 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:36:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:36:12,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:36:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:36:12,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 22:36:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:36:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:36:12,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:36:12,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:36:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:36:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 22:36:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 22:36:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 22:36:12,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:36:12,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:36:12,994 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:36:12,996 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:36:14,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:36:15,138 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2025-03-08 22:36:15,138 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:36:15,218 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:36:15,222 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 22:36:15,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:36:15 BoogieIcfgContainer [2025-03-08 22:36:15,222 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:36:15,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:36:15,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:36:15,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:36:15,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:36:11" (1/3) ... [2025-03-08 22:36:15,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb2fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:36:15, skipping insertion in model container [2025-03-08 22:36:15,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:36:12" (2/3) ... [2025-03-08 22:36:15,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb2fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:36:15, skipping insertion in model container [2025-03-08 22:36:15,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:36:15" (3/3) ... [2025-03-08 22:36:15,231 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-1.i [2025-03-08 22:36:15,242 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:36:15,244 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test9-1.i that has 6 procedures, 1378 locations, 1 initial locations, 31 loop locations, and 2 error locations. [2025-03-08 22:36:15,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:36:15,317 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;@6ba2c70b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:36:15,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:36:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-03-08 22:36:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 22:36:15,331 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:15,331 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:15,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:15,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1249373015, now seen corresponding path program 1 times [2025-03-08 22:36:15,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:15,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055029693] [2025-03-08 22:36:15,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:15,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:15,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 22:36:15,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 22:36:15,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:15,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:15,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:15,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055029693] [2025-03-08 22:36:15,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055029693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:15,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:15,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:36:15,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777200389] [2025-03-08 22:36:15,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:15,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:36:15,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:15,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:36:15,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:36:15,493 INFO L87 Difference]: Start difference. First operand has 1370 states, 859 states have (on average 1.839348079161816) internal successors, (1580), 1363 states have internal predecessors, (1580), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-03-08 22:36:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:15,637 INFO L93 Difference]: Finished difference Result 1368 states and 2531 transitions. [2025-03-08 22:36:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:36:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-08 22:36:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:15,664 INFO L225 Difference]: With dead ends: 1368 [2025-03-08 22:36:15,664 INFO L226 Difference]: Without dead ends: 1366 [2025-03-08 22:36:15,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:36:15,667 INFO L435 NwaCegarLoop]: 2490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:15,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2490 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:15,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2025-03-08 22:36:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2025-03-08 22:36:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 857 states have (on average 1.7747957992998833) internal successors, (1521), 1359 states have internal predecessors, (1521), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:36:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2529 transitions. [2025-03-08 22:36:15,984 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2529 transitions. Word has length 7 [2025-03-08 22:36:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:15,984 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2529 transitions. [2025-03-08 22:36:15,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-03-08 22:36:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2529 transitions. [2025-03-08 22:36:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-08 22:36:15,984 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:15,984 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:15,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:36:15,985 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:15,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2072331228, now seen corresponding path program 1 times [2025-03-08 22:36:15,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:15,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527513064] [2025-03-08 22:36:15,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:15,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-08 22:36:16,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-08 22:36:16,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:16,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:16,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:16,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527513064] [2025-03-08 22:36:16,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527513064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:16,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689244708] [2025-03-08 22:36:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:16,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:16,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:16,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:16,133 INFO L87 Difference]: Start difference. First operand 1366 states and 2529 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-08 22:36:16,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:16,857 INFO L93 Difference]: Finished difference Result 2715 states and 5042 transitions. [2025-03-08 22:36:16,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:16,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2025-03-08 22:36:16,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:16,874 INFO L225 Difference]: With dead ends: 2715 [2025-03-08 22:36:16,875 INFO L226 Difference]: Without dead ends: 2715 [2025-03-08 22:36:16,876 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 [2025-03-08 22:36:16,876 INFO L435 NwaCegarLoop]: 2533 mSDtfsCounter, 1503 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 7027 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:16,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 7027 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 22:36:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2025-03-08 22:36:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1368. [2025-03-08 22:36:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 859 states have (on average 1.7729918509895226) internal successors, (1523), 1361 states have internal predecessors, (1523), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:36:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2531 transitions. [2025-03-08 22:36:17,163 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2531 transitions. Word has length 9 [2025-03-08 22:36:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:17,164 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 2531 transitions. [2025-03-08 22:36:17,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-08 22:36:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2531 transitions. [2025-03-08 22:36:17,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:36:17,167 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:17,167 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 22:36:17,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:36:17,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:17,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -231763017, now seen corresponding path program 1 times [2025-03-08 22:36:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:17,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944620846] [2025-03-08 22:36:17,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:17,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:36:17,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:36:17,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:17,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944620846] [2025-03-08 22:36:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944620846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856603391] [2025-03-08 22:36:17,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:17,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:17,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:17,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:17,518 INFO L87 Difference]: Start difference. First operand 1368 states and 2531 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2025-03-08 22:36:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:17,651 INFO L93 Difference]: Finished difference Result 1326 states and 2454 transitions. [2025-03-08 22:36:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:36:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 83 [2025-03-08 22:36:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:17,658 INFO L225 Difference]: With dead ends: 1326 [2025-03-08 22:36:17,658 INFO L226 Difference]: Without dead ends: 1326 [2025-03-08 22:36:17,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:36:17,659 INFO L435 NwaCegarLoop]: 2396 mSDtfsCounter, 30 mSDsluCounter, 4773 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:17,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7169 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2025-03-08 22:36:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2025-03-08 22:36:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 817 states have (on average 1.7698898408812729) internal successors, (1446), 1319 states have internal predecessors, (1446), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:36:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2454 transitions. [2025-03-08 22:36:17,769 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2454 transitions. Word has length 83 [2025-03-08 22:36:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:17,769 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 2454 transitions. [2025-03-08 22:36:17,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2025-03-08 22:36:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2454 transitions. [2025-03-08 22:36:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-08 22:36:17,772 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:17,772 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 22:36:17,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:36:17,772 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:17,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:17,773 INFO L85 PathProgramCache]: Analyzing trace with hash -519529904, now seen corresponding path program 1 times [2025-03-08 22:36:17,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:17,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260056642] [2025-03-08 22:36:17,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:17,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:17,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-08 22:36:17,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-08 22:36:17,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:17,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:17,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260056642] [2025-03-08 22:36:17,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260056642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:17,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:17,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:36:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559672561] [2025-03-08 22:36:17,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:17,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:36:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:17,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:36:17,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:36:17,946 INFO L87 Difference]: Start difference. First operand 1326 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2025-03-08 22:36:18,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:18,111 INFO L93 Difference]: Finished difference Result 2549 states and 4775 transitions. [2025-03-08 22:36:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:36:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2025-03-08 22:36:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:18,126 INFO L225 Difference]: With dead ends: 2549 [2025-03-08 22:36:18,127 INFO L226 Difference]: Without dead ends: 2549 [2025-03-08 22:36:18,127 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 [2025-03-08 22:36:18,127 INFO L435 NwaCegarLoop]: 2599 mSDtfsCounter, 1261 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:18,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 4999 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2025-03-08 22:36:18,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2545. [2025-03-08 22:36:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 1536 states have (on average 1.7994791666666667) internal successors, (2764), 2538 states have internal predecessors, (2764), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:36:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4772 transitions. [2025-03-08 22:36:18,301 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4772 transitions. Word has length 83 [2025-03-08 22:36:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:18,301 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4772 transitions. [2025-03-08 22:36:18,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2025-03-08 22:36:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4772 transitions. [2025-03-08 22:36:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 22:36:18,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:18,303 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2025-03-08 22:36:18,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:36:18,303 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:18,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash 955413345, now seen corresponding path program 1 times [2025-03-08 22:36:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:18,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615641072] [2025-03-08 22:36:18,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:18,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 22:36:18,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 22:36:18,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:18,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:36:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615641072] [2025-03-08 22:36:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615641072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:18,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:18,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:18,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342182203] [2025-03-08 22:36:18,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:18,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:18,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:18,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:18,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:18,609 INFO L87 Difference]: Start difference. First operand 2545 states and 4772 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:19,226 INFO L93 Difference]: Finished difference Result 4769 states and 9093 transitions. [2025-03-08 22:36:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:19,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2025-03-08 22:36:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:19,249 INFO L225 Difference]: With dead ends: 4769 [2025-03-08 22:36:19,249 INFO L226 Difference]: Without dead ends: 4769 [2025-03-08 22:36:19,250 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 [2025-03-08 22:36:19,251 INFO L435 NwaCegarLoop]: 2486 mSDtfsCounter, 1416 mSDsluCounter, 4373 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 6859 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:19,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 6859 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:36:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2025-03-08 22:36:19,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 2547. [2025-03-08 22:36:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 1538 states have (on average 1.7984395318595578) internal successors, (2766), 2540 states have internal predecessors, (2766), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:36:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 4774 transitions. [2025-03-08 22:36:19,533 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 4774 transitions. Word has length 98 [2025-03-08 22:36:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:19,534 INFO L471 AbstractCegarLoop]: Abstraction has 2547 states and 4774 transitions. [2025-03-08 22:36:19,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 4774 transitions. [2025-03-08 22:36:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:36:19,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:19,539 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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] [2025-03-08 22:36:19,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:36:19,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:19,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash -803263995, now seen corresponding path program 1 times [2025-03-08 22:36:19,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781024836] [2025-03-08 22:36:19,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:19,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:36:19,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:36:19,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:19,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:36:19,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:19,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781024836] [2025-03-08 22:36:19,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781024836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:19,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:19,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:36:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346838085] [2025-03-08 22:36:19,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:19,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:36:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:19,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:36:19,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:36:19,731 INFO L87 Difference]: Start difference. First operand 2547 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:19,857 INFO L93 Difference]: Finished difference Result 2587 states and 4814 transitions. [2025-03-08 22:36:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:36:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:36:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:19,867 INFO L225 Difference]: With dead ends: 2587 [2025-03-08 22:36:19,867 INFO L226 Difference]: Without dead ends: 2587 [2025-03-08 22:36:19,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:36:19,868 INFO L435 NwaCegarLoop]: 2394 mSDtfsCounter, 8 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:19,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4773 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2025-03-08 22:36:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2587. [2025-03-08 22:36:20,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1578 states have (on average 1.7782002534854247) internal successors, (2806), 2580 states have internal predecessors, (2806), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:36:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 4814 transitions. [2025-03-08 22:36:20,189 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 4814 transitions. Word has length 153 [2025-03-08 22:36:20,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:20,189 INFO L471 AbstractCegarLoop]: Abstraction has 2587 states and 4814 transitions. [2025-03-08 22:36:20,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 4814 transitions. [2025-03-08 22:36:20,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:36:20,190 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:20,190 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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] [2025-03-08 22:36:20,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:36:20,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:20,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash 380083302, now seen corresponding path program 1 times [2025-03-08 22:36:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123515601] [2025-03-08 22:36:20,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:20,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:20,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:36:20,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:36:20,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:20,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:36:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123515601] [2025-03-08 22:36:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123515601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:20,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:20,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645800666] [2025-03-08 22:36:20,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:20,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:20,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:20,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:20,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:20,400 INFO L87 Difference]: Start difference. First operand 2587 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:20,505 INFO L93 Difference]: Finished difference Result 2463 states and 4614 transitions. [2025-03-08 22:36:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:36:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:36:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:20,515 INFO L225 Difference]: With dead ends: 2463 [2025-03-08 22:36:20,516 INFO L226 Difference]: Without dead ends: 2463 [2025-03-08 22:36:20,516 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 [2025-03-08 22:36:20,516 INFO L435 NwaCegarLoop]: 2319 mSDtfsCounter, 32 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6943 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:20,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6943 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2025-03-08 22:36:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2463. [2025-03-08 22:36:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1454 states have (on average 1.7922971114167814) internal successors, (2606), 2456 states have internal predecessors, (2606), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-08 22:36:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 4614 transitions. [2025-03-08 22:36:20,698 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 4614 transitions. Word has length 153 [2025-03-08 22:36:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:20,698 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 4614 transitions. [2025-03-08 22:36:20,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 4614 transitions. [2025-03-08 22:36:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-08 22:36:20,699 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:20,700 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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] [2025-03-08 22:36:20,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 22:36:20,700 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:20,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:20,700 INFO L85 PathProgramCache]: Analyzing trace with hash 232335743, now seen corresponding path program 1 times [2025-03-08 22:36:20,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:20,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747124150] [2025-03-08 22:36:20,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:20,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-08 22:36:20,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-08 22:36:20,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:20,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:20,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:20,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747124150] [2025-03-08 22:36:20,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747124150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:20,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:20,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:36:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53226705] [2025-03-08 22:36:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:20,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:36:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:20,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:36:20,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:36:20,919 INFO L87 Difference]: Start difference. First operand 2463 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:22,267 INFO L93 Difference]: Finished difference Result 2545 states and 4720 transitions. [2025-03-08 22:36:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:36:22,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 153 [2025-03-08 22:36:22,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:22,277 INFO L225 Difference]: With dead ends: 2545 [2025-03-08 22:36:22,278 INFO L226 Difference]: Without dead ends: 2545 [2025-03-08 22:36:22,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:36:22,278 INFO L435 NwaCegarLoop]: 2474 mSDtfsCounter, 3767 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4268 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:22,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4268 Valid, 5503 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 22:36:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2025-03-08 22:36:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1371. [2025-03-08 22:36:22,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 862 states have (on average 1.7192575406032482) internal successors, (1482), 1364 states have internal predecessors, (1482), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-08 22:36:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2490 transitions. [2025-03-08 22:36:22,449 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2490 transitions. Word has length 153 [2025-03-08 22:36:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:22,450 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2490 transitions. [2025-03-08 22:36:22,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2490 transitions. [2025-03-08 22:36:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-08 22:36:22,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:22,453 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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] [2025-03-08 22:36:22,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 22:36:22,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:22,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:22,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1037353841, now seen corresponding path program 1 times [2025-03-08 22:36:22,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:22,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557283096] [2025-03-08 22:36:22,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:22,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:22,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:36:22,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:36:22,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:22,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:23,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:23,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557283096] [2025-03-08 22:36:23,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557283096] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:36:23,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060886356] [2025-03-08 22:36:23,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:23,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:23,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:23,022 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) [2025-03-08 22:36:23,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:36:23,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-08 22:36:23,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-08 22:36:23,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:23,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:23,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 22:36:23,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:23,290 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 [2025-03-08 22:36:23,451 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 0 case distinctions, treesize of input 23 treesize of output 3 [2025-03-08 22:36:23,455 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 15 treesize of output 7 [2025-03-08 22:36:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:23,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:36:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:23,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060886356] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:36:23,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:36:23,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2025-03-08 22:36:23,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257325990] [2025-03-08 22:36:23,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:36:23,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 22:36:23,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:23,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 22:36:23,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:36:23,594 INFO L87 Difference]: Start difference. First operand 1371 states and 2490 transitions. Second operand has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:36:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:27,618 INFO L93 Difference]: Finished difference Result 4085 states and 7443 transitions. [2025-03-08 22:36:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 22:36:27,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 163 [2025-03-08 22:36:27,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:27,631 INFO L225 Difference]: With dead ends: 4085 [2025-03-08 22:36:27,631 INFO L226 Difference]: Without dead ends: 4085 [2025-03-08 22:36:27,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-08 22:36:27,631 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 8428 mSDsluCounter, 8326 mSDsCounter, 0 mSdLazyCounter, 3757 mSolverCounterSat, 2011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9432 SdHoareTripleChecker+Valid, 10189 SdHoareTripleChecker+Invalid, 5768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2011 IncrementalHoareTripleChecker+Valid, 3757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:27,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9432 Valid, 10189 Invalid, 5768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2011 Valid, 3757 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-08 22:36:27,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2025-03-08 22:36:27,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 1711. [2025-03-08 22:36:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1198 states have (on average 1.6126878130217028) internal successors, (1932), 1700 states have internal predecessors, (1932), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2025-03-08 22:36:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2946 transitions. [2025-03-08 22:36:27,854 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2946 transitions. Word has length 163 [2025-03-08 22:36:27,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:27,854 INFO L471 AbstractCegarLoop]: Abstraction has 1711 states and 2946 transitions. [2025-03-08 22:36:27,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:36:27,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2946 transitions. [2025-03-08 22:36:27,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2025-03-08 22:36:27,857 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:27,857 INFO L218 NwaCegarLoop]: trace histogram [5, 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, 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] [2025-03-08 22:36:27,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:36:28,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:28,059 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:28,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:28,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1664015019, now seen corresponding path program 1 times [2025-03-08 22:36:28,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:28,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769247756] [2025-03-08 22:36:28,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:28,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:28,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:36:28,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:36:28,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:28,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:30,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:30,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769247756] [2025-03-08 22:36:30,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769247756] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:36:30,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001399034] [2025-03-08 22:36:30,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:30,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:30,631 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) [2025-03-08 22:36:30,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:36:30,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 385 statements into 1 equivalence classes. [2025-03-08 22:36:31,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 385 of 385 statements. [2025-03-08 22:36:31,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:31,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:31,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 22:36:31,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:31,159 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 [2025-03-08 22:36:31,307 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 0 case distinctions, treesize of input 23 treesize of output 3 [2025-03-08 22:36:31,397 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:31,476 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:31,553 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:31,557 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 15 treesize of output 7 [2025-03-08 22:36:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:31,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:36:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001399034] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:36:31,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:36:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 20 [2025-03-08 22:36:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210234339] [2025-03-08 22:36:31,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:36:31,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-08 22:36:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:31,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-08 22:36:31,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-08 22:36:31,963 INFO L87 Difference]: Start difference. First operand 1711 states and 2946 transitions. Second operand has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:36:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:39,981 INFO L93 Difference]: Finished difference Result 9391 states and 17195 transitions. [2025-03-08 22:36:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-08 22:36:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 385 [2025-03-08 22:36:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:39,999 INFO L225 Difference]: With dead ends: 9391 [2025-03-08 22:36:39,999 INFO L226 Difference]: Without dead ends: 9391 [2025-03-08 22:36:40,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 761 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2025-03-08 22:36:40,000 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 24760 mSDsluCounter, 14498 mSDsCounter, 0 mSdLazyCounter, 7158 mSolverCounterSat, 4848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27770 SdHoareTripleChecker+Valid, 16361 SdHoareTripleChecker+Invalid, 12006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4848 IncrementalHoareTripleChecker+Valid, 7158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:40,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27770 Valid, 16361 Invalid, 12006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4848 Valid, 7158 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2025-03-08 22:36:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2025-03-08 22:36:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 2557. [2025-03-08 22:36:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2038 states have (on average 1.5014720314033365) internal successors, (3060), 2540 states have internal predecessors, (3060), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:36:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4086 transitions. [2025-03-08 22:36:40,512 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4086 transitions. Word has length 385 [2025-03-08 22:36:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:40,512 INFO L471 AbstractCegarLoop]: Abstraction has 2557 states and 4086 transitions. [2025-03-08 22:36:40,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 38.45) internal successors, (769), 20 states have internal predecessors, (769), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:36:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4086 transitions. [2025-03-08 22:36:40,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2025-03-08 22:36:40,525 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:40,525 INFO L218 NwaCegarLoop]: trace histogram [11, 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, 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] [2025-03-08 22:36:40,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 22:36:40,726 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,SelfDestructingSolverStorable9 [2025-03-08 22:36:40,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:40,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:40,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1397609501, now seen corresponding path program 2 times [2025-03-08 22:36:40,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:40,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043356951] [2025-03-08 22:36:40,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:36:40,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:40,952 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 829 statements into 2 equivalence classes. [2025-03-08 22:36:40,971 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 74 of 829 statements. [2025-03-08 22:36:40,974 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:36:40,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:36:41,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:41,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043356951] [2025-03-08 22:36:41,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043356951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:41,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:41,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:36:41,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861164551] [2025-03-08 22:36:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:41,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:36:41,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:41,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:36:41,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:36:41,070 INFO L87 Difference]: Start difference. First operand 2557 states and 4086 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:41,355 INFO L93 Difference]: Finished difference Result 2597 states and 4141 transitions. [2025-03-08 22:36:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:36:41,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 829 [2025-03-08 22:36:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:41,386 INFO L225 Difference]: With dead ends: 2597 [2025-03-08 22:36:41,386 INFO L226 Difference]: Without dead ends: 2597 [2025-03-08 22:36:41,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:36:41,386 INFO L435 NwaCegarLoop]: 2347 mSDtfsCounter, 80 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 11482 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:41,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 11482 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:36:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2025-03-08 22:36:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2559. [2025-03-08 22:36:41,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 2040 states have (on average 1.5009803921568627) internal successors, (3062), 2542 states have internal predecessors, (3062), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:36:41,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 4088 transitions. [2025-03-08 22:36:41,471 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 4088 transitions. Word has length 829 [2025-03-08 22:36:41,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:41,472 INFO L471 AbstractCegarLoop]: Abstraction has 2559 states and 4088 transitions. [2025-03-08 22:36:41,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 4088 transitions. [2025-03-08 22:36:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2025-03-08 22:36:41,485 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:41,485 INFO L218 NwaCegarLoop]: trace histogram [11, 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, 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] [2025-03-08 22:36:41,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 22:36:41,485 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:41,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1427681895, now seen corresponding path program 1 times [2025-03-08 22:36:41,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:41,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239613389] [2025-03-08 22:36:41,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:41,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:41,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 830 statements into 1 equivalence classes. [2025-03-08 22:36:41,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 830 of 830 statements. [2025-03-08 22:36:41,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:41,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:36:43,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:43,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239613389] [2025-03-08 22:36:43,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239613389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:43,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:43,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:36:43,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038016037] [2025-03-08 22:36:43,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:43,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:36:43,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:43,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:36:43,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:36:43,270 INFO L87 Difference]: Start difference. First operand 2559 states and 4088 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:43,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:43,564 INFO L93 Difference]: Finished difference Result 2564 states and 4094 transitions. [2025-03-08 22:36:43,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:36:43,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 830 [2025-03-08 22:36:43,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:43,569 INFO L225 Difference]: With dead ends: 2564 [2025-03-08 22:36:43,569 INFO L226 Difference]: Without dead ends: 2564 [2025-03-08 22:36:43,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:36:43,570 INFO L435 NwaCegarLoop]: 2327 mSDtfsCounter, 14 mSDsluCounter, 9040 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11367 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:43,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11367 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:36:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2025-03-08 22:36:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2563. [2025-03-08 22:36:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2044 states have (on average 1.5004892367906066) internal successors, (3067), 2546 states have internal predecessors, (3067), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:36:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4093 transitions. [2025-03-08 22:36:43,655 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4093 transitions. Word has length 830 [2025-03-08 22:36:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:43,655 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4093 transitions. [2025-03-08 22:36:43,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4093 transitions. [2025-03-08 22:36:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2025-03-08 22:36:43,661 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:43,661 INFO L218 NwaCegarLoop]: trace histogram [11, 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, 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] [2025-03-08 22:36:43,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 22:36:43,661 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:43,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:43,662 INFO L85 PathProgramCache]: Analyzing trace with hash 885550340, now seen corresponding path program 1 times [2025-03-08 22:36:43,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:43,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337222861] [2025-03-08 22:36:43,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:43,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:43,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 831 statements into 1 equivalence classes. [2025-03-08 22:36:44,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 831 of 831 statements. [2025-03-08 22:36:44,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:44,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3336 trivial. 0 not checked. [2025-03-08 22:36:45,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:45,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337222861] [2025-03-08 22:36:45,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337222861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:45,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:45,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 22:36:45,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401530097] [2025-03-08 22:36:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:45,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 22:36:45,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:45,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 22:36:45,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:36:45,434 INFO L87 Difference]: Start difference. First operand 2563 states and 4093 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:45,796 INFO L93 Difference]: Finished difference Result 2574 states and 4106 transitions. [2025-03-08 22:36:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 22:36:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 831 [2025-03-08 22:36:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:45,801 INFO L225 Difference]: With dead ends: 2574 [2025-03-08 22:36:45,801 INFO L226 Difference]: Without dead ends: 2574 [2025-03-08 22:36:45,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-08 22:36:45,802 INFO L435 NwaCegarLoop]: 2328 mSDtfsCounter, 31 mSDsluCounter, 15920 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 18248 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:45,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 18248 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:36:45,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2025-03-08 22:36:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2571. [2025-03-08 22:36:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2052 states have (on average 1.4990253411306043) internal successors, (3076), 2554 states have internal predecessors, (3076), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2025-03-08 22:36:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4102 transitions. [2025-03-08 22:36:45,888 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4102 transitions. Word has length 831 [2025-03-08 22:36:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:45,889 INFO L471 AbstractCegarLoop]: Abstraction has 2571 states and 4102 transitions. [2025-03-08 22:36:45,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:36:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4102 transitions. [2025-03-08 22:36:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2025-03-08 22:36:45,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:45,894 INFO L218 NwaCegarLoop]: trace histogram [11, 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, 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] [2025-03-08 22:36:45,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 22:36:45,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:45,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:45,895 INFO L85 PathProgramCache]: Analyzing trace with hash 900808073, now seen corresponding path program 1 times [2025-03-08 22:36:45,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:36:45,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547459901] [2025-03-08 22:36:45,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:45,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:36:46,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:36:46,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:36:46,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:46,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:53,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:36:53,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547459901] [2025-03-08 22:36:53,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547459901] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 22:36:53,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470987604] [2025-03-08 22:36:53,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:53,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:53,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:53,554 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) [2025-03-08 22:36:53,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:36:54,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 832 statements into 1 equivalence classes. [2025-03-08 22:36:54,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 832 of 832 statements. [2025-03-08 22:36:54,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:54,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:54,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-08 22:36:54,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:54,556 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 [2025-03-08 22:36:54,683 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 0 case distinctions, treesize of input 23 treesize of output 3 [2025-03-08 22:36:54,759 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:54,824 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:54,895 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:54,989 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,058 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,125 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,203 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,267 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,330 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 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-08 22:36:55,333 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 15 treesize of output 7 [2025-03-08 22:36:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:55,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:36:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:56,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470987604] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:36:56,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 22:36:56,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15, 14] total 38 [2025-03-08 22:36:56,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128958636] [2025-03-08 22:36:56,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 22:36:56,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-03-08 22:36:56,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:36:56,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-03-08 22:36:56,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=836, Unknown=0, NotChecked=0, Total=1406 [2025-03-08 22:36:56,176 INFO L87 Difference]: Start difference. First operand 2571 states and 4102 transitions. Second operand has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:37:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:37:14,771 INFO L93 Difference]: Finished difference Result 17955 states and 32601 transitions. [2025-03-08 22:37:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-08 22:37:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 832 [2025-03-08 22:37:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:37:14,802 INFO L225 Difference]: With dead ends: 17955 [2025-03-08 22:37:14,803 INFO L226 Difference]: Without dead ends: 17955 [2025-03-08 22:37:14,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1702 GetRequests, 1651 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=871, Invalid=1579, Unknown=0, NotChecked=0, Total=2450 [2025-03-08 22:37:14,804 INFO L435 NwaCegarLoop]: 1862 mSDtfsCounter, 43957 mSDsluCounter, 25796 mSDsCounter, 0 mSdLazyCounter, 13437 mSolverCounterSat, 8606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49979 SdHoareTripleChecker+Valid, 27658 SdHoareTripleChecker+Invalid, 22043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8606 IncrementalHoareTripleChecker+Valid, 13437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:37:14,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49979 Valid, 27658 Invalid, 22043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8606 Valid, 13437 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2025-03-08 22:37:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17955 states. [2025-03-08 22:37:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17955 to 4263. [2025-03-08 22:37:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 3732 states have (on average 1.4287245444801715) internal successors, (5332), 4234 states have internal predecessors, (5332), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:37:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 6382 transitions. [2025-03-08 22:37:15,829 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 6382 transitions. Word has length 832 [2025-03-08 22:37:15,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:37:15,830 INFO L471 AbstractCegarLoop]: Abstraction has 4263 states and 6382 transitions. [2025-03-08 22:37:15,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 44.0) internal successors, (1672), 38 states have internal predecessors, (1672), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-08 22:37:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 6382 transitions. [2025-03-08 22:37:15,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2025-03-08 22:37:15,844 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:37:15,845 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-03-08 22:37:15,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:37:16,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:37:16,049 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:37:16,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:37:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1954412039, now seen corresponding path program 2 times [2025-03-08 22:37:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:37:16,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370768688] [2025-03-08 22:37:16,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:37:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:37:16,398 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1720 statements into 2 equivalence classes. [2025-03-08 22:37:16,513 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 77 of 1720 statements. [2025-03-08 22:37:16,513 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 22:37:16,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:37:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-08 22:37:16,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:37:16,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370768688] [2025-03-08 22:37:16,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370768688] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:37:16,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:37:16,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-08 22:37:16,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598764955] [2025-03-08 22:37:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:37:16,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-08 22:37:16,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:37:16,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-08 22:37:16,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2025-03-08 22:37:16,846 INFO L87 Difference]: Start difference. First operand 4263 states and 6382 transitions. Second operand has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:37:17,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:37:17,633 INFO L93 Difference]: Finished difference Result 4299 states and 6438 transitions. [2025-03-08 22:37:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 22:37:17,633 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1720 [2025-03-08 22:37:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:37:17,642 INFO L225 Difference]: With dead ends: 4299 [2025-03-08 22:37:17,642 INFO L226 Difference]: Without dead ends: 4299 [2025-03-08 22:37:17,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2025-03-08 22:37:17,642 INFO L435 NwaCegarLoop]: 2290 mSDtfsCounter, 47 mSDsluCounter, 33921 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 36211 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 22:37:17,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 36211 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 22:37:17,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2025-03-08 22:37:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 4275. [2025-03-08 22:37:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 3744 states have (on average 1.4286858974358974) internal successors, (5349), 4246 states have internal predecessors, (5349), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:37:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 6399 transitions. [2025-03-08 22:37:17,739 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 6399 transitions. Word has length 1720 [2025-03-08 22:37:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:37:17,740 INFO L471 AbstractCegarLoop]: Abstraction has 4275 states and 6399 transitions. [2025-03-08 22:37:17,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.411764705882353) internal successors, (160), 17 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:37:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 6399 transitions. [2025-03-08 22:37:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2025-03-08 22:37:17,755 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:37:17,755 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2025-03-08 22:37:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 22:37:17,755 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:37:17,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:37:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1668033562, now seen corresponding path program 1 times [2025-03-08 22:37:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:37:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913275678] [2025-03-08 22:37:17,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:37:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:37:18,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1720 statements into 1 equivalence classes. [2025-03-08 22:37:18,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1720 of 1720 statements. [2025-03-08 22:37:18,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:37:18,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:37:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 17100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17100 trivial. 0 not checked. [2025-03-08 22:37:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:37:20,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913275678] [2025-03-08 22:37:20,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913275678] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:37:20,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:37:20,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 22:37:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772117780] [2025-03-08 22:37:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:37:20,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:37:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:37:20,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:37:20,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:37:20,974 INFO L87 Difference]: Start difference. First operand 4275 states and 6399 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:37:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:37:21,124 INFO L93 Difference]: Finished difference Result 4278 states and 6402 transitions. [2025-03-08 22:37:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:37:21,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1720 [2025-03-08 22:37:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:37:21,132 INFO L225 Difference]: With dead ends: 4278 [2025-03-08 22:37:21,133 INFO L226 Difference]: Without dead ends: 4278 [2025-03-08 22:37:21,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:37:21,133 INFO L435 NwaCegarLoop]: 2330 mSDtfsCounter, 8 mSDsluCounter, 6813 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:37:21,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9143 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:37:21,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2025-03-08 22:37:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4278. [2025-03-08 22:37:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 3747 states have (on average 1.4283426741393115) internal successors, (5352), 4249 states have internal predecessors, (5352), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2025-03-08 22:37:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 6402 transitions. [2025-03-08 22:37:21,227 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 6402 transitions. Word has length 1720 [2025-03-08 22:37:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:37:21,228 INFO L471 AbstractCegarLoop]: Abstraction has 4278 states and 6402 transitions. [2025-03-08 22:37:21,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:37:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 6402 transitions. [2025-03-08 22:37:21,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1722 [2025-03-08 22:37:21,243 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:37:21,243 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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, 1] [2025-03-08 22:37:21,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 22:37:21,243 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:37:21,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:37:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash -527607541, now seen corresponding path program 1 times [2025-03-08 22:37:21,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:37:21,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531223828] [2025-03-08 22:37:21,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:37:21,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:37:21,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1721 statements into 1 equivalence classes. [2025-03-08 22:37:22,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1721 of 1721 statements. [2025-03-08 22:37:22,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:37:22,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat