./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-1.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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:12:29,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:12:29,213 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-22 18:12:29,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:12:29,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:12:29,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:12:29,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:12:29,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:12:29,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:12:29,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:12:29,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:12:29,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:12:29,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:12:29,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:12:29,251 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:12:29,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:12:29,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:12:29,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:12:29,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:12:29,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:12:29,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:12:29,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:12:29,254 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:12:29,255 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:12:29,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:12:29,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:12:29,256 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:12:29,256 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:12:29,256 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:12:29,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:12:29,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:12:29,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:12:29,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:12:29,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:12:29,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:12:29,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:12:29,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:12:29,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:12:29,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:12:29,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:12:29,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:12:29,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:12:29,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:12:29,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:12:29,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:12:29,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-22 18:12:29,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:12:29,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:12:29,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:12:29,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:12:29,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:12:29,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-1.i [2024-11-22 18:12:31,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:12:31,365 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:12:31,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-1.i [2024-11-22 18:12:31,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53ff0a777/d96019233f05422599dcea9ca6b4a4b1/FLAG4fb4b7f60 [2024-11-22 18:12:31,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53ff0a777/d96019233f05422599dcea9ca6b4a4b1 [2024-11-22 18:12:31,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:12:31,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:12:31,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:12:31,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:12:31,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:12:31,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:12:31" (1/1) ... [2024-11-22 18:12:31,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5975bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:31, skipping insertion in model container [2024-11-22 18:12:31,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:12:31" (1/1) ... [2024-11-22 18:12:31,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:12:31,990 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,033 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,037 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,039 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,045 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,090 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,090 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,093 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,093 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:12:32,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:12:32,115 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:12:32,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:12:32,268 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:12:32,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32 WrapperNode [2024-11-22 18:12:32,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:12:32,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:12:32,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:12:32,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:12:32,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,378 INFO L138 Inliner]: procedures = 207, calls = 222, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1279 [2024-11-22 18:12:32,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:12:32,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:12:32,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:12:32,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:12:32,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,458 INFO L175 MemorySlicer]: Split 206 memory accesses to 3 slices as follows [2, 170, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-22 18:12:32,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:12:32,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:12:32,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:12:32,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:12:32,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (1/1) ... [2024-11-22 18:12:32,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:12:32,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:12:32,559 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) [2024-11-22 18:12:32,563 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 [2024-11-22 18:12:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 18:12:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 18:12:32,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 18:12:32,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 18:12:32,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 18:12:32,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 18:12:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:12:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 18:12:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 18:12:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 18:12:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:12:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:12:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 18:12:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 18:12:32,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 18:12:32,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 18:12:32,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 18:12:32,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:12:32,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 18:12:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:12:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:12:32,829 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:12:32,833 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:12:34,258 INFO L? ?]: Removed 296 outVars from TransFormulas that were not future-live. [2024-11-22 18:12:34,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:12:34,286 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:12:34,289 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-22 18:12:34,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:12:34 BoogieIcfgContainer [2024-11-22 18:12:34,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:12:34,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:12:34,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:12:34,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:12:34,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:12:31" (1/3) ... [2024-11-22 18:12:34,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca03b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:12:34, skipping insertion in model container [2024-11-22 18:12:34,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:12:32" (2/3) ... [2024-11-22 18:12:34,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca03b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:12:34, skipping insertion in model container [2024-11-22 18:12:34,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:12:34" (3/3) ... [2024-11-22 18:12:34,299 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test2-1.i [2024-11-22 18:12:34,316 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:12:34,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 18:12:34,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:12:34,395 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;@4b4ea3b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:12:34,395 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 18:12:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 362 states have (on average 1.6215469613259668) internal successors, (587), 364 states have internal predecessors, (587), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:34,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-22 18:12:34,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:34,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-22 18:12:34,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:34,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1665797, now seen corresponding path program 1 times [2024-11-22 18:12:34,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:34,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325529291] [2024-11-22 18:12:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:34,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:12:34,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:34,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325529291] [2024-11-22 18:12:34,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325529291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:34,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:34,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:12:34,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772734603] [2024-11-22 18:12:34,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:34,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:12:34,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:34,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:12:34,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:12:34,909 INFO L87 Difference]: Start difference. First operand has 369 states, 362 states have (on average 1.6215469613259668) internal successors, (587), 364 states have internal predecessors, (587), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-22 18:12:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:35,169 INFO L93 Difference]: Finished difference Result 533 states and 774 transitions. [2024-11-22 18:12:35,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:12:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-22 18:12:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:35,195 INFO L225 Difference]: With dead ends: 533 [2024-11-22 18:12:35,196 INFO L226 Difference]: Without dead ends: 529 [2024-11-22 18:12:35,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:12:35,203 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 240 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:35,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1550 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:12:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-22 18:12:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 526. [2024-11-22 18:12:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 520 states have (on average 1.4615384615384615) internal successors, (760), 521 states have internal predecessors, (760), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 766 transitions. [2024-11-22 18:12:35,289 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 766 transitions. Word has length 4 [2024-11-22 18:12:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:35,289 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 766 transitions. [2024-11-22 18:12:35,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-22 18:12:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 766 transitions. [2024-11-22 18:12:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 18:12:35,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:35,294 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] [2024-11-22 18:12:35,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:12:35,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:35,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1562403199, now seen corresponding path program 1 times [2024-11-22 18:12:35,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:35,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648655954] [2024-11-22 18:12:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:12:35,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:35,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648655954] [2024-11-22 18:12:35,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648655954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:35,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:35,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:12:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556909076] [2024-11-22 18:12:35,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:35,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:12:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:12:35,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:12:35,624 INFO L87 Difference]: Start difference. First operand 526 states and 766 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-22 18:12:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:35,731 INFO L93 Difference]: Finished difference Result 532 states and 758 transitions. [2024-11-22 18:12:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:12:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2024-11-22 18:12:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:35,734 INFO L225 Difference]: With dead ends: 532 [2024-11-22 18:12:35,735 INFO L226 Difference]: Without dead ends: 532 [2024-11-22 18:12:35,735 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 [2024-11-22 18:12:35,736 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 105 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1410 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 [2024-11-22 18:12:35,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1410 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:12:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-22 18:12:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 526. [2024-11-22 18:12:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 520 states have (on average 1.4346153846153846) internal successors, (746), 521 states have internal predecessors, (746), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 752 transitions. [2024-11-22 18:12:35,769 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 752 transitions. Word has length 67 [2024-11-22 18:12:35,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:35,769 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 752 transitions. [2024-11-22 18:12:35,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-22 18:12:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 752 transitions. [2024-11-22 18:12:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 18:12:35,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:35,773 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] [2024-11-22 18:12:35,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:12:35,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:35,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash -672253965, now seen corresponding path program 1 times [2024-11-22 18:12:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:35,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399756507] [2024-11-22 18:12:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:12:36,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399756507] [2024-11-22 18:12:36,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399756507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:36,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 18:12:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732105679] [2024-11-22 18:12:36,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:36,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 18:12:36,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:36,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 18:12:36,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:12:36,450 INFO L87 Difference]: Start difference. First operand 526 states and 752 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-22 18:12:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:36,637 INFO L93 Difference]: Finished difference Result 725 states and 1037 transitions. [2024-11-22 18:12:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:12:36,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2024-11-22 18:12:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:36,643 INFO L225 Difference]: With dead ends: 725 [2024-11-22 18:12:36,644 INFO L226 Difference]: Without dead ends: 722 [2024-11-22 18:12:36,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 18:12:36,648 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 504 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:36,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 2518 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:12:36,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-22 18:12:36,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 368. [2024-11-22 18:12:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 362 states have (on average 1.430939226519337) internal successors, (518), 363 states have internal predecessors, (518), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 524 transitions. [2024-11-22 18:12:36,670 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 524 transitions. Word has length 67 [2024-11-22 18:12:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:36,670 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 524 transitions. [2024-11-22 18:12:36,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-22 18:12:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 524 transitions. [2024-11-22 18:12:36,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 18:12:36,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:36,676 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:36,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:12:36,677 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:36,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:36,677 INFO L85 PathProgramCache]: Analyzing trace with hash 158487370, now seen corresponding path program 1 times [2024-11-22 18:12:36,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193692644] [2024-11-22 18:12:36,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:36,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:12:36,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:36,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193692644] [2024-11-22 18:12:36,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193692644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:36,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:36,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:12:36,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804239053] [2024-11-22 18:12:36,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:36,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:12:36,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:36,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:12:36,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:12:36,923 INFO L87 Difference]: Start difference. First operand 368 states and 524 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-22 18:12:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:37,012 INFO L93 Difference]: Finished difference Result 326 states and 447 transitions. [2024-11-22 18:12:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:12:37,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2024-11-22 18:12:37,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:37,014 INFO L225 Difference]: With dead ends: 326 [2024-11-22 18:12:37,014 INFO L226 Difference]: Without dead ends: 326 [2024-11-22 18:12:37,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:12:37,015 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 30 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:37,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1241 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:12:37,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-22 18:12:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-11-22 18:12:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 320 states have (on average 1.378125) internal successors, (441), 321 states have internal predecessors, (441), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 447 transitions. [2024-11-22 18:12:37,023 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 447 transitions. Word has length 86 [2024-11-22 18:12:37,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:37,024 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 447 transitions. [2024-11-22 18:12:37,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-22 18:12:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 447 transitions. [2024-11-22 18:12:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 18:12:37,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:37,026 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:37,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:12:37,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:37,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1370986562, now seen corresponding path program 1 times [2024-11-22 18:12:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046584062] [2024-11-22 18:12:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:12:37,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:37,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046584062] [2024-11-22 18:12:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046584062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:37,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:37,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:12:37,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044642362] [2024-11-22 18:12:37,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:37,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:12:37,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:12:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:12:37,204 INFO L87 Difference]: Start difference. First operand 326 states and 447 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-22 18:12:37,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:37,308 INFO L93 Difference]: Finished difference Result 555 states and 766 transitions. [2024-11-22 18:12:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:12:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-22 18:12:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:37,312 INFO L225 Difference]: With dead ends: 555 [2024-11-22 18:12:37,313 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 18:12:37,313 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 [2024-11-22 18:12:37,314 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 258 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:37,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1052 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:12:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 18:12:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2024-11-22 18:12:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3922651933701657) internal successors, (756), 544 states have internal predecessors, (756), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 762 transitions. [2024-11-22 18:12:37,335 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 762 transitions. Word has length 86 [2024-11-22 18:12:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:37,339 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 762 transitions. [2024-11-22 18:12:37,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-22 18:12:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 762 transitions. [2024-11-22 18:12:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 18:12:37,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:37,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:37,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:12:37,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:37,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:37,345 INFO L85 PathProgramCache]: Analyzing trace with hash 222231063, now seen corresponding path program 1 times [2024-11-22 18:12:37,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:37,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542463975] [2024-11-22 18:12:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:37,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 18:12:37,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:37,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542463975] [2024-11-22 18:12:37,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542463975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:37,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:37,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:12:37,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106234202] [2024-11-22 18:12:37,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:37,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:12:37,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:37,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:12:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:12:37,629 INFO L87 Difference]: Start difference. First operand 549 states and 762 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-22 18:12:37,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:37,668 INFO L93 Difference]: Finished difference Result 549 states and 756 transitions. [2024-11-22 18:12:37,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:12:37,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 101 [2024-11-22 18:12:37,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:37,671 INFO L225 Difference]: With dead ends: 549 [2024-11-22 18:12:37,671 INFO L226 Difference]: Without dead ends: 549 [2024-11-22 18:12:37,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:12:37,672 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:37,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 844 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:12:37,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-22 18:12:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-22 18:12:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3812154696132597) internal successors, (750), 544 states have internal predecessors, (750), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 756 transitions. [2024-11-22 18:12:37,684 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 756 transitions. Word has length 101 [2024-11-22 18:12:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:37,684 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 756 transitions. [2024-11-22 18:12:37,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-22 18:12:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 756 transitions. [2024-11-22 18:12:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 18:12:37,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:37,685 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:37,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:12:37,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:37,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash 714857237, now seen corresponding path program 1 times [2024-11-22 18:12:37,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:37,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222846108] [2024-11-22 18:12:37,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:37,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:12:38,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222846108] [2024-11-22 18:12:38,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222846108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:12:38,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742036965] [2024-11-22 18:12:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:12:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:12:38,226 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) [2024-11-22 18:12:38,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:12:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:38,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-22 18:12:38,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:12:38,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:12:38,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-22 18:12:39,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:12:39,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 58 [2024-11-22 18:12:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 18:12:39,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:12:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742036965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:12:39,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2024-11-22 18:12:39,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803746343] [2024-11-22 18:12:39,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:39,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 18:12:39,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:39,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 18:12:39,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:12:39,558 INFO L87 Difference]: Start difference. First operand 549 states and 756 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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) [2024-11-22 18:12:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:40,708 INFO L93 Difference]: Finished difference Result 781 states and 1077 transitions. [2024-11-22 18:12:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 18:12:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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 101 [2024-11-22 18:12:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:40,712 INFO L225 Difference]: With dead ends: 781 [2024-11-22 18:12:40,712 INFO L226 Difference]: Without dead ends: 781 [2024-11-22 18:12:40,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-22 18:12:40,714 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 547 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:40,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 2282 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 18:12:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-22 18:12:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 549. [2024-11-22 18:12:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 543 states have (on average 1.3793738489871086) internal successors, (749), 544 states have internal predecessors, (749), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 755 transitions. [2024-11-22 18:12:40,726 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 755 transitions. Word has length 101 [2024-11-22 18:12:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:40,727 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 755 transitions. [2024-11-22 18:12:40,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 11 states have internal predecessors, (94), 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) [2024-11-22 18:12:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 755 transitions. [2024-11-22 18:12:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 18:12:40,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:40,728 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:40,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:12:40,929 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 [2024-11-22 18:12:40,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:40,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2029479846, now seen corresponding path program 1 times [2024-11-22 18:12:40,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207837209] [2024-11-22 18:12:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:40,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:12:41,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207837209] [2024-11-22 18:12:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207837209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:12:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105601173] [2024-11-22 18:12:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:41,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:12:41,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:12:41,314 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) [2024-11-22 18:12:41,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:12:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:41,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 18:12:41,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:12:41,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:12:41,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 18:12:41,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:12:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 18:12:41,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:12:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 18:12:42,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105601173] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 18:12:42,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 18:12:42,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 7] total 11 [2024-11-22 18:12:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318588088] [2024-11-22 18:12:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:42,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:12:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:12:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-22 18:12:42,246 INFO L87 Difference]: Start difference. First operand 549 states and 755 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-22 18:12:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:42,356 INFO L93 Difference]: Finished difference Result 716 states and 991 transitions. [2024-11-22 18:12:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:12:42,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 102 [2024-11-22 18:12:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:42,360 INFO L225 Difference]: With dead ends: 716 [2024-11-22 18:12:42,360 INFO L226 Difference]: Without dead ends: 716 [2024-11-22 18:12:42,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:12:42,362 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 567 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:42,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1280 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:12:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-22 18:12:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 551. [2024-11-22 18:12:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 545 states have (on average 1.3779816513761467) internal successors, (751), 546 states have internal predecessors, (751), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 757 transitions. [2024-11-22 18:12:42,375 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 757 transitions. Word has length 102 [2024-11-22 18:12:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:42,376 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 757 transitions. [2024-11-22 18:12:42,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-22 18:12:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 757 transitions. [2024-11-22 18:12:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 18:12:42,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:42,380 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:42,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 18:12:42,584 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 [2024-11-22 18:12:42,584 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:42,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:42,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1787607994, now seen corresponding path program 1 times [2024-11-22 18:12:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:42,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466925252] [2024-11-22 18:12:42,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 18:12:42,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:42,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466925252] [2024-11-22 18:12:42,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466925252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:42,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:12:42,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:12:42,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993199925] [2024-11-22 18:12:42,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:42,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:12:42,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:42,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:12:42,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:12:42,938 INFO L87 Difference]: Start difference. First operand 551 states and 757 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 18:12:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:43,292 INFO L93 Difference]: Finished difference Result 636 states and 865 transitions. [2024-11-22 18:12:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:12:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 159 [2024-11-22 18:12:43,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:43,296 INFO L225 Difference]: With dead ends: 636 [2024-11-22 18:12:43,296 INFO L226 Difference]: Without dead ends: 636 [2024-11-22 18:12:43,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:12:43,298 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 1447 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:43,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1056 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 18:12:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-22 18:12:43,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 415. [2024-11-22 18:12:43,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 409 states have (on average 1.3496332518337408) internal successors, (552), 410 states have internal predecessors, (552), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:43,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 558 transitions. [2024-11-22 18:12:43,310 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 558 transitions. Word has length 159 [2024-11-22 18:12:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 558 transitions. [2024-11-22 18:12:43,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-22 18:12:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 558 transitions. [2024-11-22 18:12:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 18:12:43,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:43,313 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:43,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:12:43,313 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:43,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1079816102, now seen corresponding path program 1 times [2024-11-22 18:12:43,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:43,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172992681] [2024-11-22 18:12:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:12:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172992681] [2024-11-22 18:12:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172992681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:12:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797134368] [2024-11-22 18:12:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:43,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:12:43,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:12:43,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:12:43,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:12:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:44,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 18:12:44,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:12:44,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:12:44,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:12:44,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 55 [2024-11-22 18:12:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 18:12:44,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:12:44,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797134368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:12:44,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:12:44,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2024-11-22 18:12:44,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162695273] [2024-11-22 18:12:44,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:12:44,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 18:12:44,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:12:44,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 18:12:44,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:12:44,869 INFO L87 Difference]: Start difference. First operand 415 states and 558 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2024-11-22 18:12:47,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:12:47,307 INFO L93 Difference]: Finished difference Result 675 states and 916 transitions. [2024-11-22 18:12:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:12:47,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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 169 [2024-11-22 18:12:47,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:12:47,310 INFO L225 Difference]: With dead ends: 675 [2024-11-22 18:12:47,310 INFO L226 Difference]: Without dead ends: 675 [2024-11-22 18:12:47,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-22 18:12:47,311 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 473 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:12:47,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 2852 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-22 18:12:47,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-22 18:12:47,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 444. [2024-11-22 18:12:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 438 states have (on average 1.3378995433789955) internal successors, (586), 439 states have internal predecessors, (586), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 18:12:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 592 transitions. [2024-11-22 18:12:47,321 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 592 transitions. Word has length 169 [2024-11-22 18:12:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:12:47,322 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 592 transitions. [2024-11-22 18:12:47,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2024-11-22 18:12:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 592 transitions. [2024-11-22 18:12:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 18:12:47,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:12:47,325 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:12:47,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:12:47,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:12:47,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:12:47,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:12:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2033639934, now seen corresponding path program 1 times [2024-11-22 18:12:47,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:12:47,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519221532] [2024-11-22 18:12:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:47,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:12:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:12:47,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:12:47,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519221532] [2024-11-22 18:12:47,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519221532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:12:47,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431969592] [2024-11-22 18:12:47,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:12:47,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:12:47,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:12:47,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:12:47,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 18:12:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:12:48,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-22 18:12:48,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:13:48,016 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-22 18:13:56,024 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)