./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:23:03,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:23:03,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-20 14:23:03,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:23:03,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:23:03,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:23:03,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:23:03,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:23:03,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:23:03,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:23:03,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:23:03,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:23:03,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:23:03,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:23:03,285 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:23:03,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:23:03,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:23:03,286 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:23:03,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:23:03,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:23:03,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:23:03,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:23:03,291 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:23:03,291 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:23:03,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:23:03,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:23:03,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:23:03,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:23:03,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:23:03,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:23:03,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:23:03,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:23:03,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:23:03,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:23:03,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:23:03,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:23:03,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:23:03,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:23:03,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:23:03,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:23:03,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:23:03,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:23:03,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:23:03,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:23:03,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:23:03,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 [2024-11-20 14:23:03,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:23:03,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:23:03,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:23:03,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:23:03,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:23:03,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2024-11-20 14:23:05,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:23:05,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:23:05,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2024-11-20 14:23:05,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4ace73e/18b4a46b0f834defb1c27ecfd9f22a9f/FLAGf75c61cb9 [2024-11-20 14:23:05,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4ace73e/18b4a46b0f834defb1c27ecfd9f22a9f [2024-11-20 14:23:05,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:23:05,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:23:05,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:23:05,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:23:05,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:23:05,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:23:05" (1/1) ... [2024-11-20 14:23:05,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368b9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:05, skipping insertion in model container [2024-11-20 14:23:05,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:23:05" (1/1) ... [2024-11-20 14:23:05,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:23:05,896 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,926 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,930 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,933 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,939 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,968 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,970 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,977 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:05,983 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:06,002 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:23:06,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:23:06,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:23:06,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:23:06,192 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:23:06,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06 WrapperNode [2024-11-20 14:23:06,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:23:06,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:23:06,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:23:06,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:23:06,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,293 INFO L138 Inliner]: procedures = 176, calls = 336, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1591 [2024-11-20 14:23:06,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:23:06,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:23:06,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:23:06,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:23:06,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,409 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [307, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 82 writes are split as follows [82, 0]. [2024-11-20 14:23:06,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:23:06,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:23:06,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:23:06,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:23:06,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (1/1) ... [2024-11-20 14:23:06,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:23:06,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:23:06,543 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) [2024-11-20 14:23:06,546 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 [2024-11-20 14:23:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 14:23:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 14:23:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 14:23:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 14:23:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 14:23:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 14:23:06,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:23:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:23:06,931 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:23:06,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:23:08,624 INFO L? ?]: Removed 389 outVars from TransFormulas that were not future-live. [2024-11-20 14:23:08,624 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:23:08,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:23:08,653 INFO L316 CfgBuilder]: Removed 60 assume(true) statements. [2024-11-20 14:23:08,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:23:08 BoogieIcfgContainer [2024-11-20 14:23:08,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:23:08,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:23:08,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:23:08,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:23:08,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:23:05" (1/3) ... [2024-11-20 14:23:08,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9ce2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:23:08, skipping insertion in model container [2024-11-20 14:23:08,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:23:06" (2/3) ... [2024-11-20 14:23:08,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9ce2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:23:08, skipping insertion in model container [2024-11-20 14:23:08,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:23:08" (3/3) ... [2024-11-20 14:23:08,666 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-1.i [2024-11-20 14:23:08,683 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:23:08,683 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 14:23:08,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:23:08,748 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;@57d03844, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:23:08,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 14:23:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 428 states, 407 states have (on average 1.6191646191646192) internal successors, (659), 419 states have internal predecessors, (659), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 14:23:08,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:08,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:08,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:08,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:08,773 INFO L85 PathProgramCache]: Analyzing trace with hash -653849795, now seen corresponding path program 1 times [2024-11-20 14:23:08,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:08,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490270247] [2024-11-20 14:23:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:23:08,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490270247] [2024-11-20 14:23:08,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490270247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:08,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:08,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:23:08,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040839368] [2024-11-20 14:23:08,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:08,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:23:08,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:23:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:23:09,017 INFO L87 Difference]: Start difference. First operand has 428 states, 407 states have (on average 1.6191646191646192) internal successors, (659), 419 states have internal predecessors, (659), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:23:09,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:09,163 INFO L93 Difference]: Finished difference Result 811 states and 1179 transitions. [2024-11-20 14:23:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:23:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-20 14:23:09,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:09,193 INFO L225 Difference]: With dead ends: 811 [2024-11-20 14:23:09,194 INFO L226 Difference]: Without dead ends: 809 [2024-11-20 14:23:09,197 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 [2024-11-20 14:23:09,201 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 545 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:09,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1285 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:23:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-20 14:23:09,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 426. [2024-11-20 14:23:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 406 states have (on average 1.4482758620689655) internal successors, (588), 417 states have internal predecessors, (588), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 620 transitions. [2024-11-20 14:23:09,292 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 620 transitions. Word has length 7 [2024-11-20 14:23:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:09,293 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 620 transitions. [2024-11-20 14:23:09,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:23:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 620 transitions. [2024-11-20 14:23:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 14:23:09,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:09,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:09,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:23:09,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:09,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash -650190524, now seen corresponding path program 1 times [2024-11-20 14:23:09,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084011534] [2024-11-20 14:23:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:23:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084011534] [2024-11-20 14:23:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084011534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:10,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:10,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:23:10,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086936382] [2024-11-20 14:23:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:10,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:23:10,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:10,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:23:10,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:23:10,029 INFO L87 Difference]: Start difference. First operand 426 states and 620 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-11-20 14:23:10,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:10,146 INFO L93 Difference]: Finished difference Result 429 states and 616 transitions. [2024-11-20 14:23:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:23:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 153 [2024-11-20 14:23:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:10,149 INFO L225 Difference]: With dead ends: 429 [2024-11-20 14:23:10,149 INFO L226 Difference]: Without dead ends: 429 [2024-11-20 14:23:10,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:23:10,152 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 105 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:10,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1680 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:23:10,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-20 14:23:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 426. [2024-11-20 14:23:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 406 states have (on average 1.4310344827586208) internal successors, (581), 417 states have internal predecessors, (581), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2024-11-20 14:23:10,200 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 153 [2024-11-20 14:23:10,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:10,200 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2024-11-20 14:23:10,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-11-20 14:23:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2024-11-20 14:23:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 14:23:10,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:10,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:10,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 14:23:10,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:10,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1243757488, now seen corresponding path program 1 times [2024-11-20 14:23:10,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:10,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306601942] [2024-11-20 14:23:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:23:10,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:10,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306601942] [2024-11-20 14:23:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306601942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:10,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:10,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:23:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183882073] [2024-11-20 14:23:10,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:10,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:23:10,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:10,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:23:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:23:10,516 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-11-20 14:23:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:10,569 INFO L93 Difference]: Finished difference Result 555 states and 801 transitions. [2024-11-20 14:23:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:23:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2024-11-20 14:23:10,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:10,575 INFO L225 Difference]: With dead ends: 555 [2024-11-20 14:23:10,576 INFO L226 Difference]: Without dead ends: 555 [2024-11-20 14:23:10,578 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 [2024-11-20 14:23:10,579 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 134 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:10,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1215 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:23:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-20 14:23:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-20 14:23:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 535 states have (on average 1.4373831775700934) internal successors, (769), 546 states have internal predecessors, (769), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-11-20 14:23:10,601 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 153 [2024-11-20 14:23:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:10,602 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-11-20 14:23:10,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-11-20 14:23:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-11-20 14:23:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-20 14:23:10,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:10,607 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 14:23:10,608 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:10,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 179544737, now seen corresponding path program 1 times [2024-11-20 14:23:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:10,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391077644] [2024-11-20 14:23:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:10,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:11,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 14:23:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:11,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 14:23:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:23:11,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391077644] [2024-11-20 14:23:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391077644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:23:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165783195] [2024-11-20 14:23:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:11,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:23:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:11,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:23:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:23:11,031 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:12,131 INFO L93 Difference]: Finished difference Result 561 states and 806 transitions. [2024-11-20 14:23:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:23:12,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-11-20 14:23:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:12,136 INFO L225 Difference]: With dead ends: 561 [2024-11-20 14:23:12,136 INFO L226 Difference]: Without dead ends: 561 [2024-11-20 14:23:12,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:23:12,137 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 115 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:12,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2084 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 14:23:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-20 14:23:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2024-11-20 14:23:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 535 states have (on average 1.4242990654205607) internal successors, (762), 546 states have internal predecessors, (762), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 794 transitions. [2024-11-20 14:23:12,153 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 794 transitions. Word has length 168 [2024-11-20 14:23:12,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:12,153 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 794 transitions. [2024-11-20 14:23:12,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 794 transitions. [2024-11-20 14:23:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-20 14:23:12,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:12,156 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:12,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 14:23:12,156 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:12,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1081387949, now seen corresponding path program 1 times [2024-11-20 14:23:12,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:12,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189954835] [2024-11-20 14:23:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:12,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 14:23:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:12,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 14:23:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:23:12,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:12,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189954835] [2024-11-20 14:23:12,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189954835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:12,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:12,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:23:12,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001712528] [2024-11-20 14:23:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:12,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:23:12,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:23:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:23:12,487 INFO L87 Difference]: Start difference. First operand 555 states and 794 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:12,971 INFO L93 Difference]: Finished difference Result 510 states and 723 transitions. [2024-11-20 14:23:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:23:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-11-20 14:23:12,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:12,976 INFO L225 Difference]: With dead ends: 510 [2024-11-20 14:23:12,977 INFO L226 Difference]: Without dead ends: 510 [2024-11-20 14:23:12,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:23:12,979 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 18 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:12,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1862 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:23:12,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-20 14:23:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2024-11-20 14:23:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 487 states have (on average 1.4004106776180698) internal successors, (682), 498 states have internal predecessors, (682), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 14:23:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 714 transitions. [2024-11-20 14:23:13,001 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 714 transitions. Word has length 168 [2024-11-20 14:23:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:13,002 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 714 transitions. [2024-11-20 14:23:13,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:13,004 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 714 transitions. [2024-11-20 14:23:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-20 14:23:13,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:13,006 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:13,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 14:23:13,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:13,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1515117035, now seen corresponding path program 1 times [2024-11-20 14:23:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124841148] [2024-11-20 14:23:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:13,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 14:23:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:13,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 14:23:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:23:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:13,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124841148] [2024-11-20 14:23:13,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124841148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:23:13,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:23:13,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:23:13,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572752276] [2024-11-20 14:23:13,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:23:13,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:23:13,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:23:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:23:13,364 INFO L87 Difference]: Start difference. First operand 507 states and 714 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:13,779 INFO L93 Difference]: Finished difference Result 650 states and 913 transitions. [2024-11-20 14:23:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:23:13,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-11-20 14:23:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:13,783 INFO L225 Difference]: With dead ends: 650 [2024-11-20 14:23:13,783 INFO L226 Difference]: Without dead ends: 650 [2024-11-20 14:23:13,784 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 [2024-11-20 14:23:13,784 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 248 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:13,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1423 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:23:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-20 14:23:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 647. [2024-11-20 14:23:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 624 states have (on average 1.3830128205128205) internal successors, (863), 635 states have internal predecessors, (863), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 14:23:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 901 transitions. [2024-11-20 14:23:13,803 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 901 transitions. Word has length 168 [2024-11-20 14:23:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:13,803 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 901 transitions. [2024-11-20 14:23:13,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:23:13,804 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 901 transitions. [2024-11-20 14:23:13,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-20 14:23:13,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:13,806 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:23:13,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 14:23:13,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:13,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:13,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1885515306, now seen corresponding path program 1 times [2024-11-20 14:23:13,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:13,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601015569] [2024-11-20 14:23:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:13,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 14:23:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 14:23:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-20 14:23:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 14:23:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:23:14,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601015569] [2024-11-20 14:23:14,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601015569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:23:14,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645194970] [2024-11-20 14:23:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:14,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:23:14,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:23:14,276 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) [2024-11-20 14:23:14,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 14:23:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:14,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 14:23:14,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:23:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:23:15,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:23:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:23:15,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645194970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:23:15,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:23:15,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-20 14:23:15,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108384814] [2024-11-20 14:23:15,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:23:15,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 14:23:15,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:15,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 14:23:15,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-20 14:23:15,318 INFO L87 Difference]: Start difference. First operand 647 states and 901 transitions. Second operand has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:23:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:15,949 INFO L93 Difference]: Finished difference Result 1385 states and 1939 transitions. [2024-11-20 14:23:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 14:23:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 183 [2024-11-20 14:23:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:15,956 INFO L225 Difference]: With dead ends: 1385 [2024-11-20 14:23:15,956 INFO L226 Difference]: Without dead ends: 1385 [2024-11-20 14:23:15,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-20 14:23:15,957 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 1745 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:15,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 2975 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 14:23:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-20 14:23:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1382. [2024-11-20 14:23:15,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1344 states have (on average 1.3720238095238095) internal successors, (1844), 1355 states have internal predecessors, (1844), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 25 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 14:23:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1912 transitions. [2024-11-20 14:23:15,987 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1912 transitions. Word has length 183 [2024-11-20 14:23:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:15,987 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1912 transitions. [2024-11-20 14:23:15,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 7 states have internal predecessors, (482), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 14:23:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1912 transitions. [2024-11-20 14:23:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2024-11-20 14:23:16,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:16,000 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-20 14:23:16,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 14:23:16,201 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 [2024-11-20 14:23:16,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:16,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1525144385, now seen corresponding path program 1 times [2024-11-20 14:23:16,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:16,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210944370] [2024-11-20 14:23:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:23:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:18,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 14:23:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:18,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 14:23:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:18,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-20 14:23:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:18,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 14:23:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 4 proven. 534 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-20 14:23:18,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:23:18,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210944370] [2024-11-20 14:23:18,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210944370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 14:23:18,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962009689] [2024-11-20 14:23:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:18,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 14:23:18,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:23:18,056 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) [2024-11-20 14:23:18,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 14:23:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:23:19,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:23:19,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:23:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:23:20,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:23:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:23:20,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962009689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:23:20,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 14:23:20,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-20 14:23:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166415302] [2024-11-20 14:23:20,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 14:23:20,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 14:23:20,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:23:20,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 14:23:20,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-20 14:23:20,825 INFO L87 Difference]: Start difference. First operand 1382 states and 1912 transitions. Second operand has 18 states, 18 states have (on average 86.77777777777777) internal successors, (1562), 17 states have internal predecessors, (1562), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-20 14:23:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:23:23,718 INFO L93 Difference]: Finished difference Result 3263 states and 4551 transitions. [2024-11-20 14:23:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 14:23:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 86.77777777777777) internal successors, (1562), 17 states have internal predecessors, (1562), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 621 [2024-11-20 14:23:23,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:23:23,734 INFO L225 Difference]: With dead ends: 3263 [2024-11-20 14:23:23,734 INFO L226 Difference]: Without dead ends: 3263 [2024-11-20 14:23:23,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1272 GetRequests, 1239 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=837, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 14:23:23,736 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 17752 mSDsluCounter, 5902 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17752 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:23:23,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17752 Valid, 6755 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 14:23:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2024-11-20 14:23:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3237. [2024-11-20 14:23:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3199 states have (on average 1.3794935917474211) internal successors, (4413), 3210 states have internal predecessors, (4413), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 25 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 14:23:23,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4481 transitions. [2024-11-20 14:23:23,820 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4481 transitions. Word has length 621 [2024-11-20 14:23:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:23:23,821 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 4481 transitions. [2024-11-20 14:23:23,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.77777777777777) internal successors, (1562), 17 states have internal predecessors, (1562), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-20 14:23:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4481 transitions. [2024-11-20 14:23:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1502 [2024-11-20 14:23:23,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:23:23,905 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-20 14:23:23,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 14:23:24,106 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 [2024-11-20 14:23:24,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:23:24,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:23:24,107 INFO L85 PathProgramCache]: Analyzing trace with hash 800999666, now seen corresponding path program 1 times [2024-11-20 14:23:24,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:23:24,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675010321] [2024-11-20 14:23:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:23:24,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms