./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_OAT_test4-1.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 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:06:35,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:06:36,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-17 00:06:36,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:06:36,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:06:36,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:06:36,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:06:36,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:06:36,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:06:36,061 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:06:36,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:06:36,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:06:36,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:06:36,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:06:36,065 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:06:36,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:06:36,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 00:06:36,066 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:06:36,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:06:36,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:06:36,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:06:36,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 00:06:36,071 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:06:36,071 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:06:36,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:06:36,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 00:06:36,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:06:36,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:06:36,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:06:36,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:06:36,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 00:06:36,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:06:36,073 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:06:36,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:06:36,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:06:36,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:06:36,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:06:36,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:06:36,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:06:36,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:06:36,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:06:36,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:06:36,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:06:36,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:06:36,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:06:36,077 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2024-11-17 00:06:36,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:06:36,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:06:36,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:06:36,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:06:36,373 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:06:36,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2024-11-17 00:06:37,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:06:38,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:06:38,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2024-11-17 00:06:38,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d3686881/d338bd9a7c274851b63d9609d13c0fe9/FLAG192e44e74 [2024-11-17 00:06:38,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d3686881/d338bd9a7c274851b63d9609d13c0fe9 [2024-11-17 00:06:38,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:06:38,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:06:38,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:06:38,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:06:38,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:06:38,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:06:38" (1/1) ... [2024-11-17 00:06:38,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb25d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:38, skipping insertion in model container [2024-11-17 00:06:38,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:06:38" (1/1) ... [2024-11-17 00:06:38,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:06:38,757 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,789 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,818 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,822 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,833 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,884 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,889 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,896 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,903 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,921 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 00:06:38,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:06:38,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:06:39,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:06:39,104 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:06:39,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39 WrapperNode [2024-11-17 00:06:39,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:06:39,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:06:39,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:06:39,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:06:39,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,225 INFO L138 Inliner]: procedures = 176, calls = 336, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1557 [2024-11-17 00:06:39,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:06:39,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:06:39,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:06:39,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:06:39,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,263 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,345 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-11-17 00:06:39,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,397 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:06:39,435 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:06:39,435 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:06:39,436 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:06:39,436 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (1/1) ... [2024-11-17 00:06:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:06:39,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:06:39,471 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) [2024-11-17 00:06:39,474 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 [2024-11-17 00:06:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 00:06:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 00:06:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 00:06:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 00:06:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:06:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:06:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:06:39,802 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:06:39,804 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:06:41,615 INFO L? ?]: Removed 389 outVars from TransFormulas that were not future-live. [2024-11-17 00:06:41,616 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:06:41,683 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:06:41,687 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 00:06:41,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:06:41 BoogieIcfgContainer [2024-11-17 00:06:41,688 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:06:41,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:06:41,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:06:41,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:06:41,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:06:38" (1/3) ... [2024-11-17 00:06:41,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac181fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:06:41, skipping insertion in model container [2024-11-17 00:06:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:06:39" (2/3) ... [2024-11-17 00:06:41,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac181fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:06:41, skipping insertion in model container [2024-11-17 00:06:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:06:41" (3/3) ... [2024-11-17 00:06:41,698 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2024-11-17 00:06:41,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:06:41,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 00:06:41,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:06:41,814 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;@35eb1038, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:06:41,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 00:06:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 435 states, 414 states have (on average 1.608695652173913) internal successors, (666), 426 states have internal predecessors, (666), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 00:06:41,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:41,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:41,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:41,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1532047443, now seen corresponding path program 1 times [2024-11-17 00:06:41,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:41,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067860165] [2024-11-17 00:06:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:41,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:06:42,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:42,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067860165] [2024-11-17 00:06:42,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067860165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:42,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:42,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:06:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920719345] [2024-11-17 00:06:42,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:42,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 00:06:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:42,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 00:06:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 00:06:42,163 INFO L87 Difference]: Start difference. First operand has 435 states, 414 states have (on average 1.608695652173913) internal successors, (666), 426 states have internal predecessors, (666), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-17 00:06:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:42,335 INFO L93 Difference]: Finished difference Result 434 states and 628 transitions. [2024-11-17 00:06:42,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 00:06:42,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-17 00:06:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:42,360 INFO L225 Difference]: With dead ends: 434 [2024-11-17 00:06:42,362 INFO L226 Difference]: Without dead ends: 431 [2024-11-17 00:06:42,364 INFO L431 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 [2024-11-17 00:06:42,369 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:42,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:06:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-17 00:06:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2024-11-17 00:06:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.4428223844282237) internal successors, (593), 422 states have internal predecessors, (593), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:42,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 625 transitions. [2024-11-17 00:06:42,463 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 625 transitions. Word has length 8 [2024-11-17 00:06:42,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:42,464 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 625 transitions. [2024-11-17 00:06:42,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-17 00:06:42,464 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 625 transitions. [2024-11-17 00:06:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-17 00:06:42,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:42,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:42,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:06:42,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:42,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:42,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2096357988, now seen corresponding path program 1 times [2024-11-17 00:06:42,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:42,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54735086] [2024-11-17 00:06:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:06:42,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:42,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54735086] [2024-11-17 00:06:42,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54735086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:42,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:42,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:06:42,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419937010] [2024-11-17 00:06:42,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:42,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:06:42,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:06:42,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:06:42,535 INFO L87 Difference]: Start difference. First operand 431 states and 625 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:06:42,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:42,708 INFO L93 Difference]: Finished difference Result 820 states and 1188 transitions. [2024-11-17 00:06:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:06:42,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-17 00:06:42,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:42,714 INFO L225 Difference]: With dead ends: 820 [2024-11-17 00:06:42,714 INFO L226 Difference]: Without dead ends: 820 [2024-11-17 00:06:42,714 INFO L431 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 [2024-11-17 00:06:42,716 INFO L432 NwaCegarLoop]: 668 mSDtfsCounter, 549 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:42,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1245 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:06:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-17 00:06:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 433. [2024-11-17 00:06:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 413 states have (on average 1.4406779661016949) internal successors, (595), 424 states have internal predecessors, (595), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:42,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 627 transitions. [2024-11-17 00:06:42,753 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 627 transitions. Word has length 10 [2024-11-17 00:06:42,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:42,753 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 627 transitions. [2024-11-17 00:06:42,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-17 00:06:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 627 transitions. [2024-11-17 00:06:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-17 00:06:42,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:42,762 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:42,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:06:42,763 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:42,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:42,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1962056606, now seen corresponding path program 1 times [2024-11-17 00:06:42,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:42,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135566539] [2024-11-17 00:06:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:42,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:06:43,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:43,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135566539] [2024-11-17 00:06:43,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135566539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:43,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:06:43,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891318511] [2024-11-17 00:06:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:43,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:06:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:06:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:43,566 INFO L87 Difference]: Start difference. First operand 433 states and 627 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2024-11-17 00:06:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:43,801 INFO L93 Difference]: Finished difference Result 436 states and 623 transitions. [2024-11-17 00:06:43,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:06:43,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 159 [2024-11-17 00:06:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:43,804 INFO L225 Difference]: With dead ends: 436 [2024-11-17 00:06:43,804 INFO L226 Difference]: Without dead ends: 436 [2024-11-17 00:06:43,805 INFO L431 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 [2024-11-17 00:06:43,806 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 105 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:43,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1574 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:06:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-17 00:06:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 433. [2024-11-17 00:06:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 413 states have (on average 1.423728813559322) internal successors, (588), 424 states have internal predecessors, (588), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:43,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 620 transitions. [2024-11-17 00:06:43,821 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 620 transitions. Word has length 159 [2024-11-17 00:06:43,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:43,825 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 620 transitions. [2024-11-17 00:06:43,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2024-11-17 00:06:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 620 transitions. [2024-11-17 00:06:43,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-17 00:06:43,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:43,830 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:43,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:06:43,831 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:43,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash -443205339, now seen corresponding path program 1 times [2024-11-17 00:06:43,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:43,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925854102] [2024-11-17 00:06:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 00:06:44,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:44,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925854102] [2024-11-17 00:06:44,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925854102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:44,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:44,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:06:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911435982] [2024-11-17 00:06:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:44,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:06:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:06:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:06:44,136 INFO L87 Difference]: Start difference. First operand 433 states and 620 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-17 00:06:44,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:44,305 INFO L93 Difference]: Finished difference Result 563 states and 809 transitions. [2024-11-17 00:06:44,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:06:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 159 [2024-11-17 00:06:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:44,310 INFO L225 Difference]: With dead ends: 563 [2024-11-17 00:06:44,311 INFO L226 Difference]: Without dead ends: 563 [2024-11-17 00:06:44,311 INFO L431 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 [2024-11-17 00:06:44,314 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 134 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:44,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1139 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:06:44,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-17 00:06:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-11-17 00:06:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 543 states have (on average 1.430939226519337) internal successors, (777), 554 states have internal predecessors, (777), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 809 transitions. [2024-11-17 00:06:44,340 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 809 transitions. Word has length 159 [2024-11-17 00:06:44,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:44,341 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 809 transitions. [2024-11-17 00:06:44,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-17 00:06:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 809 transitions. [2024-11-17 00:06:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-17 00:06:44,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:44,349 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:44,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:06:44,349 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:44,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 192982993, now seen corresponding path program 1 times [2024-11-17 00:06:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:44,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939342305] [2024-11-17 00:06:44,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:44,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:44,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:44,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 00:06:44,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:44,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939342305] [2024-11-17 00:06:44,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939342305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:44,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:44,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:06:44,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738799730] [2024-11-17 00:06:44,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:44,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:06:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:44,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:06:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:44,811 INFO L87 Difference]: Start difference. First operand 563 states and 809 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:45,305 INFO L93 Difference]: Finished difference Result 578 states and 830 transitions. [2024-11-17 00:06:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:06:45,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 174 [2024-11-17 00:06:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:45,309 INFO L225 Difference]: With dead ends: 578 [2024-11-17 00:06:45,310 INFO L226 Difference]: Without dead ends: 578 [2024-11-17 00:06:45,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:45,311 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 9 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:45,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1535 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 00:06:45,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-17 00:06:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 575. [2024-11-17 00:06:45,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 555 states have (on average 1.4216216216216215) internal successors, (789), 566 states have internal predecessors, (789), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 821 transitions. [2024-11-17 00:06:45,332 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 821 transitions. Word has length 174 [2024-11-17 00:06:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:45,333 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 821 transitions. [2024-11-17 00:06:45,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 821 transitions. [2024-11-17 00:06:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-17 00:06:45,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:45,338 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:45,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 00:06:45,338 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:45,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:45,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1684285902, now seen corresponding path program 1 times [2024-11-17 00:06:45,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:45,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639464456] [2024-11-17 00:06:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:45,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:45,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 00:06:45,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639464456] [2024-11-17 00:06:45,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639464456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:45,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:45,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 00:06:45,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825627951] [2024-11-17 00:06:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:45,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:06:45,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:45,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:06:45,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:06:45,760 INFO L87 Difference]: Start difference. First operand 575 states and 821 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-11-17 00:06:46,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:46,297 INFO L93 Difference]: Finished difference Result 536 states and 753 transitions. [2024-11-17 00:06:46,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:06:46,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 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 174 [2024-11-17 00:06:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:46,301 INFO L225 Difference]: With dead ends: 536 [2024-11-17 00:06:46,303 INFO L226 Difference]: Without dead ends: 536 [2024-11-17 00:06:46,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:06:46,304 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 39 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:46,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1745 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 00:06:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-17 00:06:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2024-11-17 00:06:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 513 states have (on average 1.387914230019493) internal successors, (712), 524 states have internal predecessors, (712), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 744 transitions. [2024-11-17 00:06:46,322 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 744 transitions. Word has length 174 [2024-11-17 00:06:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:46,323 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 744 transitions. [2024-11-17 00:06:46,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-11-17 00:06:46,323 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 744 transitions. [2024-11-17 00:06:46,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-17 00:06:46,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:46,325 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:46,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 00:06:46,326 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:46,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2015124807, now seen corresponding path program 1 times [2024-11-17 00:06:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:46,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923496233] [2024-11-17 00:06:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:46,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:46,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:46,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 00:06:46,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:46,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923496233] [2024-11-17 00:06:46,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923496233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:46,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:46,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:06:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085714395] [2024-11-17 00:06:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:46,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:06:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:06:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:46,721 INFO L87 Difference]: Start difference. First operand 533 states and 744 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:47,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:47,141 INFO L93 Difference]: Finished difference Result 536 states and 750 transitions. [2024-11-17 00:06:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:06:47,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 174 [2024-11-17 00:06:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:47,145 INFO L225 Difference]: With dead ends: 536 [2024-11-17 00:06:47,146 INFO L226 Difference]: Without dead ends: 536 [2024-11-17 00:06:47,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:47,146 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 10 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:47,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1321 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 00:06:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-17 00:06:47,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2024-11-17 00:06:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 513 states have (on average 1.3820662768031189) internal successors, (709), 524 states have internal predecessors, (709), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 00:06:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 741 transitions. [2024-11-17 00:06:47,162 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 741 transitions. Word has length 174 [2024-11-17 00:06:47,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:47,163 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 741 transitions. [2024-11-17 00:06:47,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:47,163 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 741 transitions. [2024-11-17 00:06:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-17 00:06:47,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:47,165 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:47,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 00:06:47,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:47,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:47,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1586449784, now seen corresponding path program 1 times [2024-11-17 00:06:47,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:47,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748493722] [2024-11-17 00:06:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:47,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:47,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 00:06:47,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:47,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748493722] [2024-11-17 00:06:47,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748493722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:06:47,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:06:47,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:06:47,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97969424] [2024-11-17 00:06:47,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:06:47,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:06:47,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:06:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:47,494 INFO L87 Difference]: Start difference. First operand 533 states and 741 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:47,968 INFO L93 Difference]: Finished difference Result 684 states and 949 transitions. [2024-11-17 00:06:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:06:47,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 174 [2024-11-17 00:06:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:47,973 INFO L225 Difference]: With dead ends: 684 [2024-11-17 00:06:47,974 INFO L226 Difference]: Without dead ends: 684 [2024-11-17 00:06:47,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:06:47,974 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 253 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:47,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1348 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 00:06:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-17 00:06:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 681. [2024-11-17 00:06:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 658 states have (on average 1.3662613981762919) internal successors, (899), 669 states have internal predecessors, (899), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 00:06:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 937 transitions. [2024-11-17 00:06:47,995 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 937 transitions. Word has length 174 [2024-11-17 00:06:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:47,996 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 937 transitions. [2024-11-17 00:06:47,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-17 00:06:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 937 transitions. [2024-11-17 00:06:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-17 00:06:48,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:48,000 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:48,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 00:06:48,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:48,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash 837527200, now seen corresponding path program 1 times [2024-11-17 00:06:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:48,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790381043] [2024-11-17 00:06:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:48,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:06:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:06:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:06:48,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:48,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790381043] [2024-11-17 00:06:48,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790381043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:06:48,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143231269] [2024-11-17 00:06:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:06:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:06:48,387 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) [2024-11-17 00:06:48,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 00:06:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:48,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 00:06:48,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:06:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:06:49,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:06:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:06:49,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143231269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:06:49,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:06:49,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-17 00:06:49,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909713725] [2024-11-17 00:06:49,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:06:49,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 00:06:49,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 00:06:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:06:49,484 INFO L87 Difference]: Start difference. First operand 681 states and 937 transitions. Second operand has 8 states, 8 states have (on average 61.875) internal successors, (495), 7 states have internal predecessors, (495), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:06:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:50,306 INFO L93 Difference]: Finished difference Result 1455 states and 2013 transitions. [2024-11-17 00:06:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 00:06:50,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 61.875) internal successors, (495), 7 states have internal predecessors, (495), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 189 [2024-11-17 00:06:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:50,314 INFO L225 Difference]: With dead ends: 1455 [2024-11-17 00:06:50,314 INFO L226 Difference]: Without dead ends: 1455 [2024-11-17 00:06:50,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:06:50,316 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 1784 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:50,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 3018 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 00:06:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2024-11-17 00:06:50,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1452. [2024-11-17 00:06:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1414 states have (on average 1.3564356435643565) internal successors, (1918), 1425 states have internal predecessors, (1918), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 25 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-17 00:06:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1986 transitions. [2024-11-17 00:06:50,356 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1986 transitions. Word has length 189 [2024-11-17 00:06:50,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:50,356 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1986 transitions. [2024-11-17 00:06:50,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 61.875) internal successors, (495), 7 states have internal predecessors, (495), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:06:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1986 transitions. [2024-11-17 00:06:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2024-11-17 00:06:50,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:50,372 INFO L215 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:50,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 00:06:50,572 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 [2024-11-17 00:06:50,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:50,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:50,574 INFO L85 PathProgramCache]: Analyzing trace with hash 363605478, now seen corresponding path program 1 times [2024-11-17 00:06:50,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:50,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448114057] [2024-11-17 00:06:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:06:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:51,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:06:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:51,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:06:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:51,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:06:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:51,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:06:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 8 proven. 375 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2024-11-17 00:06:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:06:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448114057] [2024-11-17 00:06:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448114057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:06:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347946122] [2024-11-17 00:06:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:51,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:06:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:06:51,861 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) [2024-11-17 00:06:51,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 00:06:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:06:53,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 3107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 00:06:53,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:06:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:06:53,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:06:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 00:06:54,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347946122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:06:54,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:06:54,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-17 00:06:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011380687] [2024-11-17 00:06:54,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:06:54,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 00:06:54,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:06:54,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 00:06:54,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-17 00:06:54,626 INFO L87 Difference]: Start difference. First operand 1452 states and 1986 transitions. Second operand has 15 states, 15 states have (on average 101.6) internal successors, (1524), 14 states have internal predecessors, (1524), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:06:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:06:58,089 INFO L93 Difference]: Finished difference Result 3516 states and 4859 transitions. [2024-11-17 00:06:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 00:06:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 101.6) internal successors, (1524), 14 states have internal predecessors, (1524), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 636 [2024-11-17 00:06:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:06:58,112 INFO L225 Difference]: With dead ends: 3516 [2024-11-17 00:06:58,113 INFO L226 Difference]: Without dead ends: 3516 [2024-11-17 00:06:58,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1280 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2024-11-17 00:06:58,116 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 12419 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12429 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:06:58,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12429 Valid, 5415 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-17 00:06:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2024-11-17 00:06:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 3491. [2024-11-17 00:06:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3435 states have (on average 1.3589519650655022) internal successors, (4668), 3446 states have internal predecessors, (4668), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 43 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-17 00:06:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4772 transitions. [2024-11-17 00:06:58,192 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4772 transitions. Word has length 636 [2024-11-17 00:06:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:06:58,193 INFO L471 AbstractCegarLoop]: Abstraction has 3491 states and 4772 transitions. [2024-11-17 00:06:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 101.6) internal successors, (1524), 14 states have internal predecessors, (1524), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:06:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4772 transitions. [2024-11-17 00:06:58,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1534 [2024-11-17 00:06:58,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:06:58,288 INFO L215 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:06:58,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 00:06:58,488 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 [2024-11-17 00:06:58,489 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:06:58,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:06:58,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1908302890, now seen corresponding path program 1 times [2024-11-17 00:06:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:06:58,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528092721] [2024-11-17 00:06:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:06:58,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms