./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.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_SAX_test5-1.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 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:09:59,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:09:59,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-17 00:09:59,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:09:59,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:09:59,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:09:59,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:09:59,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:09:59,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:09:59,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:09:59,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:09:59,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:09:59,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:09:59,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:09:59,943 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:09:59,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:09:59,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 00:09:59,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:09:59,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:09:59,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:09:59,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:09:59,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 00:09:59,945 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:09:59,946 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:09:59,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:09:59,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 00:09:59,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:09:59,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:09:59,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:09:59,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:09:59,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 00:09:59,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:09:59,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:09:59,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:09:59,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:09:59,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:09:59,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:09:59,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:09:59,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:09:59,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:09:59,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:09:59,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:09:59,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:09:59,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:09:59,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:09:59,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 [2024-11-17 00:10:00,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:10:00,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:10:00,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:10:00,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:10:00,279 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:10:00,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2024-11-17 00:10:01,739 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:10:02,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:10:02,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2024-11-17 00:10:02,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21235a31c/ca35c0ced241414aac37bb1bf764fe7e/FLAGb6cbde917 [2024-11-17 00:10:02,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21235a31c/ca35c0ced241414aac37bb1bf764fe7e [2024-11-17 00:10:02,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:10:02,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:10:02,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:10:02,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:10:02,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:10:02,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:02,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad3eed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02, skipping insertion in model container [2024-11-17 00:10:02,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:02,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:10:02,588 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 00:10:02,627 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 00:10:02,631 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 00:10:02,634 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 00:10:02,644 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 00:10:02,678 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 00:10:02,684 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 00:10:02,687 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 00:10:02,695 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 00:10:02,734 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 00:10:02,734 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 00:10:02,736 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 00:10:02,737 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 00:10:02,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:10:02,771 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:10:02,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:10:02,955 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:10:02,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02 WrapperNode [2024-11-17 00:10:02,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:10:02,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:10:02,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:10:02,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:10:02,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:02,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,091 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1990 [2024-11-17 00:10:03,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:10:03,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:10:03,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:10:03,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:10:03,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,231 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 323, 24]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 82, 1]. [2024-11-17 00:10:03,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:10:03,410 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:10:03,410 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:10:03,411 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:10:03,411 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (1/1) ... [2024-11-17 00:10:03,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:10:03,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:10:03,445 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 00:10:03,447 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 00:10:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 00:10:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 00:10:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 00:10:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 00:10:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 00:10:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 00:10:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 00:10:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 00:10:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 00:10:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 00:10:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:10:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 00:10:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:10:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:10:03,703 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:10:03,705 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:10:05,452 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2024-11-17 00:10:05,630 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-11-17 00:10:05,631 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:10:05,712 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:10:05,712 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 00:10:05,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:10:05 BoogieIcfgContainer [2024-11-17 00:10:05,713 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:10:05,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:10:05,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:10:05,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:10:05,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:10:02" (1/3) ... [2024-11-17 00:10:05,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f2a2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:10:05, skipping insertion in model container [2024-11-17 00:10:05,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:10:02" (2/3) ... [2024-11-17 00:10:05,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f2a2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:10:05, skipping insertion in model container [2024-11-17 00:10:05,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:10:05" (3/3) ... [2024-11-17 00:10:05,723 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-1.i [2024-11-17 00:10:05,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:10:05,742 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 00:10:05,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:10:05,818 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;@23b5abf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:10:05,819 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 00:10:05,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 583 states, 564 states have (on average 1.6134751773049645) internal successors, (910), 573 states have internal predecessors, (910), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-17 00:10:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 00:10:05,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:05,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:10:05,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:05,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash 590581563, now seen corresponding path program 1 times [2024-11-17 00:10:05,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:05,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490862372] [2024-11-17 00:10:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:05,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:06,031 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 00:10:06,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:06,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490862372] [2024-11-17 00:10:06,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490862372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:06,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:06,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 00:10:06,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539368454] [2024-11-17 00:10:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:06,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 00:10:06,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:06,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 00:10:06,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 00:10:06,075 INFO L87 Difference]: Start difference. First operand has 583 states, 564 states have (on average 1.6134751773049645) internal successors, (910), 573 states have internal predecessors, (910), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) 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 00:10:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:06,256 INFO L93 Difference]: Finished difference Result 581 states and 841 transitions. [2024-11-17 00:10:06,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 00:10:06,259 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 00:10:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:06,272 INFO L225 Difference]: With dead ends: 581 [2024-11-17 00:10:06,272 INFO L226 Difference]: Without dead ends: 578 [2024-11-17 00:10:06,276 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 00:10:06,281 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:06,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 778 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:10:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-17 00:10:06,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2024-11-17 00:10:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 561 states have (on average 1.4509803921568627) internal successors, (814), 568 states have internal predecessors, (814), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 00:10:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 838 transitions. [2024-11-17 00:10:06,375 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 838 transitions. Word has length 8 [2024-11-17 00:10:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:06,375 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 838 transitions. [2024-11-17 00:10:06,376 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 00:10:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 838 transitions. [2024-11-17 00:10:06,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-17 00:10:06,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:06,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 00:10:06,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:10:06,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:06,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash -370516796, now seen corresponding path program 1 times [2024-11-17 00:10:06,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:06,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417215337] [2024-11-17 00:10:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:06,473 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 00:10:06,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:06,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417215337] [2024-11-17 00:10:06,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417215337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:06,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:06,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:10:06,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898329555] [2024-11-17 00:10:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:06,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:10:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:10:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:10:06,477 INFO L87 Difference]: Start difference. First operand 578 states and 838 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 00:10:06,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:06,759 INFO L93 Difference]: Finished difference Result 1137 states and 1657 transitions. [2024-11-17 00:10:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:10:06,760 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 00:10:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:06,768 INFO L225 Difference]: With dead ends: 1137 [2024-11-17 00:10:06,768 INFO L226 Difference]: Without dead ends: 1137 [2024-11-17 00:10:06,770 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 00:10:06,772 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 793 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:06,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1578 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:10:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2024-11-17 00:10:06,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 582. [2024-11-17 00:10:06,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 565 states have (on average 1.447787610619469) internal successors, (818), 572 states have internal predecessors, (818), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 00:10:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 842 transitions. [2024-11-17 00:10:06,823 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 842 transitions. Word has length 10 [2024-11-17 00:10:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:06,825 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 842 transitions. [2024-11-17 00:10:06,825 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 00:10:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 842 transitions. [2024-11-17 00:10:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-17 00:10:06,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:06,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:06,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:10:06,837 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:06,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:06,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1902001150, now seen corresponding path program 1 times [2024-11-17 00:10:06,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:06,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068763534] [2024-11-17 00:10:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:07,654 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 00:10:07,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:07,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068763534] [2024-11-17 00:10:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068763534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:07,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:07,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 00:10:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812115651] [2024-11-17 00:10:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:07,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:10:07,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:07,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:10:07,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:10:07,660 INFO L87 Difference]: Start difference. First operand 582 states and 842 transitions. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:10:07,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:07,879 INFO L93 Difference]: Finished difference Result 585 states and 838 transitions. [2024-11-17 00:10:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:10:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-17 00:10:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:07,885 INFO L225 Difference]: With dead ends: 585 [2024-11-17 00:10:07,886 INFO L226 Difference]: Without dead ends: 585 [2024-11-17 00:10:07,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:10:07,888 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 93 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:07,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2156 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:10:07,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-17 00:10:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 582. [2024-11-17 00:10:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 565 states have (on average 1.4353982300884955) internal successors, (811), 572 states have internal predecessors, (811), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 00:10:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 835 transitions. [2024-11-17 00:10:07,905 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 835 transitions. Word has length 216 [2024-11-17 00:10:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:07,905 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 835 transitions. [2024-11-17 00:10:07,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:10:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 835 transitions. [2024-11-17 00:10:07,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-17 00:10:07,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:07,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:07,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:10:07,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:07,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1963930360, now seen corresponding path program 1 times [2024-11-17 00:10:07,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:07,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227847629] [2024-11-17 00:10:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:07,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:08,218 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 00:10:08,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:08,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227847629] [2024-11-17 00:10:08,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227847629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:08,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:08,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:10:08,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551072286] [2024-11-17 00:10:08,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:08,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:10:08,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:08,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:10:08,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:10:08,225 INFO L87 Difference]: Start difference. First operand 582 states and 835 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:10:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:08,390 INFO L93 Difference]: Finished difference Result 712 states and 1024 transitions. [2024-11-17 00:10:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:10:08,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-17 00:10:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:08,394 INFO L225 Difference]: With dead ends: 712 [2024-11-17 00:10:08,394 INFO L226 Difference]: Without dead ends: 712 [2024-11-17 00:10:08,394 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 00:10:08,395 INFO L432 NwaCegarLoop]: 767 mSDtfsCounter, 134 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:08,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1527 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 00:10:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-17 00:10:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-17 00:10:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 695 states have (on average 1.4388489208633093) internal successors, (1000), 702 states have internal predecessors, (1000), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 00:10:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1024 transitions. [2024-11-17 00:10:08,414 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1024 transitions. Word has length 216 [2024-11-17 00:10:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:08,414 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 1024 transitions. [2024-11-17 00:10:08,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:10:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1024 transitions. [2024-11-17 00:10:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-17 00:10:08,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:08,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:08,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:10:08,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:08,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2084750580, now seen corresponding path program 1 times [2024-11-17 00:10:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903445861] [2024-11-17 00:10:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:09,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:09,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:09,023 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 00:10:09,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:09,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903445861] [2024-11-17 00:10:09,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903445861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:09,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:09,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 00:10:09,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913326008] [2024-11-17 00:10:09,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:09,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 00:10:09,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:09,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 00:10:09,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:10:09,030 INFO L87 Difference]: Start difference. First operand 712 states and 1024 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 5 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 00:10:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:09,642 INFO L93 Difference]: Finished difference Result 673 states and 956 transitions. [2024-11-17 00:10:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 00:10:09,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 5 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2024-11-17 00:10:09,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:09,646 INFO L225 Difference]: With dead ends: 673 [2024-11-17 00:10:09,646 INFO L226 Difference]: Without dead ends: 673 [2024-11-17 00:10:09,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:10:09,647 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 22 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:09,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3179 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 00:10:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-17 00:10:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 670. [2024-11-17 00:10:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 653 states have (on average 1.4134762633996938) internal successors, (923), 660 states have internal predecessors, (923), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 00:10:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 947 transitions. [2024-11-17 00:10:09,664 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 947 transitions. Word has length 231 [2024-11-17 00:10:09,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:09,664 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 947 transitions. [2024-11-17 00:10:09,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 5 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 00:10:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 947 transitions. [2024-11-17 00:10:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-17 00:10:09,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:09,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:09,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 00:10:09,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:09,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1204904954, now seen corresponding path program 1 times [2024-11-17 00:10:09,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:09,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208667453] [2024-11-17 00:10:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:09,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:10,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:10,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:10,022 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 00:10:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208667453] [2024-11-17 00:10:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208667453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:10,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:10:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:10:10,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031211985] [2024-11-17 00:10:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:10,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:10:10,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:10:10,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:10:10,026 INFO L87 Difference]: Start difference. First operand 670 states and 947 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 00:10:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:10,646 INFO L93 Difference]: Finished difference Result 973 states and 1387 transitions. [2024-11-17 00:10:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:10:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2024-11-17 00:10:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:10,653 INFO L225 Difference]: With dead ends: 973 [2024-11-17 00:10:10,653 INFO L226 Difference]: Without dead ends: 973 [2024-11-17 00:10:10,654 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 00:10:10,656 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 471 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:10,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 2285 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 00:10:10,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2024-11-17 00:10:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 965. [2024-11-17 00:10:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 940 states have (on average 1.4159574468085105) internal successors, (1331), 952 states have internal predecessors, (1331), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 00:10:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1371 transitions. [2024-11-17 00:10:10,686 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1371 transitions. Word has length 231 [2024-11-17 00:10:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:10,687 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1371 transitions. [2024-11-17 00:10:10,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 00:10:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1371 transitions. [2024-11-17 00:10:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-17 00:10:10,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:10,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:10,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 00:10:10,691 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:10,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1812418052, now seen corresponding path program 1 times [2024-11-17 00:10:10,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:10,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378446404] [2024-11-17 00:10:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:10,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:10:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:10:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,156 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 00:10:11,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:11,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378446404] [2024-11-17 00:10:11,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378446404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:10:11,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925270708] [2024-11-17 00:10:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:11,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:11,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:10:11,159 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 00:10:11,161 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 00:10:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:11,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 00:10:11,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:10:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 00:10:11,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 00:10:11,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925270708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:11,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 00:10:11,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-17 00:10:11,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725345214] [2024-11-17 00:10:11,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:11,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:10:11,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:10:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:10:11,767 INFO L87 Difference]: Start difference. First operand 965 states and 1371 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 00:10:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:11,947 INFO L93 Difference]: Finished difference Result 1005 states and 1411 transitions. [2024-11-17 00:10:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:10:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 246 [2024-11-17 00:10:11,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:11,952 INFO L225 Difference]: With dead ends: 1005 [2024-11-17 00:10:11,952 INFO L226 Difference]: Without dead ends: 1005 [2024-11-17 00:10:11,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 00:10:11,954 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 8 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:11,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1333 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:10:11,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-17 00:10:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2024-11-17 00:10:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 980 states have (on average 1.3989795918367347) internal successors, (1371), 992 states have internal predecessors, (1371), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 00:10:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1411 transitions. [2024-11-17 00:10:11,980 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1411 transitions. Word has length 246 [2024-11-17 00:10:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:11,980 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1411 transitions. [2024-11-17 00:10:11,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 00:10:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1411 transitions. [2024-11-17 00:10:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-17 00:10:11,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:11,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:12,007 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 00:10:12,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:12,189 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:12,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash 849745245, now seen corresponding path program 1 times [2024-11-17 00:10:12,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:12,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038980108] [2024-11-17 00:10:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:12,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:12,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:12,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:10:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:12,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:10:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:12,663 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 00:10:12,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:12,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038980108] [2024-11-17 00:10:12,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038980108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:10:12,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364107591] [2024-11-17 00:10:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:12,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:12,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:10:12,667 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 00:10:12,668 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 00:10:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:13,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 00:10:13,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:10:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-17 00:10:13,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 00:10:13,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364107591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:10:13,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 00:10:13,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-17 00:10:13,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101524912] [2024-11-17 00:10:13,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:10:13,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:10:13,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:10:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 00:10:13,254 INFO L87 Difference]: Start difference. First operand 1005 states and 1411 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 00:10:13,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:13,440 INFO L93 Difference]: Finished difference Result 977 states and 1369 transitions. [2024-11-17 00:10:13,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:10:13,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 246 [2024-11-17 00:10:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:13,445 INFO L225 Difference]: With dead ends: 977 [2024-11-17 00:10:13,446 INFO L226 Difference]: Without dead ends: 977 [2024-11-17 00:10:13,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:10:13,447 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 105 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:13,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1913 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 00:10:13,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-17 00:10:13,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-17 00:10:13,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 952 states have (on average 1.3960084033613445) internal successors, (1329), 964 states have internal predecessors, (1329), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 00:10:13,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1369 transitions. [2024-11-17 00:10:13,471 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1369 transitions. Word has length 246 [2024-11-17 00:10:13,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:13,472 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1369 transitions. [2024-11-17 00:10:13,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 00:10:13,472 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1369 transitions. [2024-11-17 00:10:13,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-17 00:10:13,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:13,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:13,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 00:10:13,676 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,SelfDestructingSolverStorable7 [2024-11-17 00:10:13,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:13,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash 701997686, now seen corresponding path program 1 times [2024-11-17 00:10:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:13,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964158955] [2024-11-17 00:10:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:13,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:10:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:10:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,053 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 00:10:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964158955] [2024-11-17 00:10:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964158955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:10:14,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928049516] [2024-11-17 00:10:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:14,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:14,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:10:14,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:10:14,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 00:10:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:14,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 00:10:14,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:10:14,917 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 00:10:14,918 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:10:15,206 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 00:10:15,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928049516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:10:15,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:10:15,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-17 00:10:15,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269170052] [2024-11-17 00:10:15,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:10:15,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 00:10:15,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:15,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 00:10:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-17 00:10:15,211 INFO L87 Difference]: Start difference. First operand 977 states and 1369 transitions. Second operand has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:10:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:16,085 INFO L93 Difference]: Finished difference Result 2259 states and 3198 transitions. [2024-11-17 00:10:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 00:10:16,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 246 [2024-11-17 00:10:16,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:16,097 INFO L225 Difference]: With dead ends: 2259 [2024-11-17 00:10:16,097 INFO L226 Difference]: Without dead ends: 2259 [2024-11-17 00:10:16,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 496 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 00:10:16,099 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 4007 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:16,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 3050 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 00:10:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2024-11-17 00:10:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 1930. [2024-11-17 00:10:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1880 states have (on average 1.3861702127659574) internal successors, (2606), 1902 states have internal predecessors, (2606), 46 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 28 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-17 00:10:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2696 transitions. [2024-11-17 00:10:16,154 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2696 transitions. Word has length 246 [2024-11-17 00:10:16,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:16,154 INFO L471 AbstractCegarLoop]: Abstraction has 1930 states and 2696 transitions. [2024-11-17 00:10:16,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:10:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2696 transitions. [2024-11-17 00:10:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-17 00:10:16,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:16,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:16,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 00:10:16,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:16,373 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:16,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash -800087630, now seen corresponding path program 1 times [2024-11-17 00:10:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844511495] [2024-11-17 00:10:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:10:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:17,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 00:10:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:17,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-17 00:10:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:17,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-17 00:10:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:17,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-17 00:10:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:17,546 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 00:10:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:10:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844511495] [2024-11-17 00:10:17,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844511495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 00:10:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564371558] [2024-11-17 00:10:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:17,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:10:17,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 00:10:17,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 00:10:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:10:18,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 00:10:18,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 00:10:19,474 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 00:10:19,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 00:10:20,308 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 00:10:20,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564371558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 00:10:20,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 00:10:20,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-17 00:10:20,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146696031] [2024-11-17 00:10:20,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 00:10:20,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 00:10:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:10:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 00:10:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-17 00:10:20,314 INFO L87 Difference]: Start difference. First operand 1930 states and 2696 transitions. Second operand has 15 states, 15 states have (on average 108.86666666666666) internal successors, (1633), 14 states have internal predecessors, (1633), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:10:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:10:24,275 INFO L93 Difference]: Finished difference Result 4465 states and 6266 transitions. [2024-11-17 00:10:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 00:10:24,276 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 108.86666666666666) internal successors, (1633), 14 states have internal predecessors, (1633), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 693 [2024-11-17 00:10:24,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:10:24,294 INFO L225 Difference]: With dead ends: 4465 [2024-11-17 00:10:24,294 INFO L226 Difference]: Without dead ends: 4465 [2024-11-17 00:10:24,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1393 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 00:10:24,295 INFO L432 NwaCegarLoop]: 1001 mSDtfsCounter, 15399 mSDsluCounter, 6403 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15399 SdHoareTripleChecker+Valid, 7404 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-17 00:10:24,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15399 Valid, 7404 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-17 00:10:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2024-11-17 00:10:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4284. [2024-11-17 00:10:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4211 states have (on average 1.3842317739254333) internal successors, (5829), 4238 states have internal predecessors, (5829), 69 states have call successors, (69), 3 states have call predecessors, (69), 2 states have return successors, (67), 47 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-17 00:10:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 5965 transitions. [2024-11-17 00:10:24,379 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 5965 transitions. Word has length 693 [2024-11-17 00:10:24,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:10:24,380 INFO L471 AbstractCegarLoop]: Abstraction has 4284 states and 5965 transitions. [2024-11-17 00:10:24,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 108.86666666666666) internal successors, (1633), 14 states have internal predecessors, (1633), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 00:10:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 5965 transitions. [2024-11-17 00:10:24,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1599 [2024-11-17 00:10:24,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:10:24,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:24,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 00:10:24,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 00:10:24,658 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-17 00:10:24,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:10:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash -833313077, now seen corresponding path program 1 times [2024-11-17 00:10:24,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:10:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654547226] [2024-11-17 00:10:24,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:10:24,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms