./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX --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 ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:30:52,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:30:52,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-08 18:30:52,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:30:52,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:30:53,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:30:53,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:30:53,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:30:53,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:30:53,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:30:53,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:30:53,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:30:53,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:30:53,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:30:53,048 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:30:53,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:30:53,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:30:53,050 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:30:53,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:30:53,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:30:53,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:30:53,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:30:53,056 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:30:53,057 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:30:53,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:30:53,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:30:53,058 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:30:53,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:30:53,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:30:53,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:30:53,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:30:53,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:30:53,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:30:53,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:30:53,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:30:53,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:30:53,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:30:53,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:30:53,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:30:53,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:30:53,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:30:53,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:30:53,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:30:53,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:30:53,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:30:53,068 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 [2024-11-08 18:30:53,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:30:53,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:30:53,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:30:53,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:30:53,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:30:53,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i Unable to find full path for "g++" [2024-11-08 18:30:55,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:30:56,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:30:56,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2024-11-08 18:30:56,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/data/36cdff7b4/afdaddd9732e45ed901189deceef4818/FLAG4b1f9f024 [2024-11-08 18:30:56,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/data/36cdff7b4/afdaddd9732e45ed901189deceef4818 [2024-11-08 18:30:56,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:30:56,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:30:56,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:56,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:30:56,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:30:56,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:56" (1/1) ... [2024-11-08 18:30:56,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e5027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:56, skipping insertion in model container [2024-11-08 18:30:56,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:56" (1/1) ... [2024-11-08 18:30:56,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:30:57,091 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,153 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,162 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,167 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,184 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,220 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:30:57,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:57,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:30:57,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:57,485 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:30:57,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57 WrapperNode [2024-11-08 18:30:57,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:57,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:57,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:30:57,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:30:57,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,650 INFO L138 Inliner]: procedures = 176, calls = 180, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 825 [2024-11-08 18:30:57,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:57,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:30:57,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:30:57,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:30:57,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,797 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-08 18:30:57,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:30:57,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:30:57,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:30:57,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:30:57,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (1/1) ... [2024-11-08 18:30:57,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:30:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:57,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:30:57,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:30:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:30:57,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:30:57,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 18:30:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 18:30:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:30:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:30:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 18:30:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 18:30:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 18:30:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 18:30:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:30:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:30:57,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:30:58,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:30:58,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:30:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:30:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:30:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:30:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:30:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:30:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:30:58,308 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:30:58,313 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:30:59,957 INFO L? ?]: Removed 215 outVars from TransFormulas that were not future-live. [2024-11-08 18:30:59,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:30:59,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:30:59,977 INFO L316 CfgBuilder]: Removed 27 assume(true) statements. [2024-11-08 18:30:59,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:59 BoogieIcfgContainer [2024-11-08 18:30:59,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:30:59,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:30:59,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:30:59,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:30:59,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:30:56" (1/3) ... [2024-11-08 18:30:59,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f455108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:59, skipping insertion in model container [2024-11-08 18:30:59,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:57" (2/3) ... [2024-11-08 18:30:59,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f455108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:59, skipping insertion in model container [2024-11-08 18:30:59,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:59" (3/3) ... [2024-11-08 18:30:59,990 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-1.i [2024-11-08 18:31:00,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:31:00,012 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:31:00,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:31:00,092 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;@31b93a0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:31:00,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:31:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 223 states have (on average 1.609865470852018) internal successors, (359), 235 states have internal predecessors, (359), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 18:31:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 18:31:00,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:00,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:00,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:00,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:00,118 INFO L85 PathProgramCache]: Analyzing trace with hash -5810376, now seen corresponding path program 1 times [2024-11-08 18:31:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:00,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84129215] [2024-11-08 18:31:00,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:00,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84129215] [2024-11-08 18:31:00,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84129215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:00,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:00,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:00,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009722840] [2024-11-08 18:31:00,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:00,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:00,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:00,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:00,459 INFO L87 Difference]: Start difference. First operand has 241 states, 223 states have (on average 1.609865470852018) internal successors, (359), 235 states have internal predecessors, (359), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:00,602 INFO L93 Difference]: Finished difference Result 437 states and 637 transitions. [2024-11-08 18:31:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:00,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-08 18:31:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:00,631 INFO L225 Difference]: With dead ends: 437 [2024-11-08 18:31:00,631 INFO L226 Difference]: Without dead ends: 435 [2024-11-08 18:31:00,633 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 [2024-11-08 18:31:00,639 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 279 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:00,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 690 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:31:00,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-08 18:31:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 240. [2024-11-08 18:31:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 223 states have (on average 1.4573991031390134) internal successors, (325), 234 states have internal predecessors, (325), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 18:31:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 351 transitions. [2024-11-08 18:31:00,736 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 351 transitions. Word has length 7 [2024-11-08 18:31:00,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:00,737 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 351 transitions. [2024-11-08 18:31:00,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 351 transitions. [2024-11-08 18:31:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:31:00,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:00,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:00,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:31:00,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:00,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash 878546506, now seen corresponding path program 1 times [2024-11-08 18:31:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:00,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535740243] [2024-11-08 18:31:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:01,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:01,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535740243] [2024-11-08 18:31:01,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535740243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:01,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:01,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:31:01,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883422704] [2024-11-08 18:31:01,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:01,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:01,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:01,395 INFO L87 Difference]: Start difference. First operand 240 states and 351 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:01,581 INFO L93 Difference]: Finished difference Result 243 states and 347 transitions. [2024-11-08 18:31:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:31:01,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-08 18:31:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:01,586 INFO L225 Difference]: With dead ends: 243 [2024-11-08 18:31:01,589 INFO L226 Difference]: Without dead ends: 243 [2024-11-08 18:31:01,590 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 [2024-11-08 18:31:01,591 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 107 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:01,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 864 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-08 18:31:01,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2024-11-08 18:31:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 223 states have (on average 1.4260089686098654) internal successors, (318), 234 states have internal predecessors, (318), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 18:31:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 344 transitions. [2024-11-08 18:31:01,625 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 344 transitions. Word has length 83 [2024-11-08 18:31:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:01,626 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 344 transitions. [2024-11-08 18:31:01,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 344 transitions. [2024-11-08 18:31:01,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:31:01,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:01,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:01,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:31:01,632 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1061658434, now seen corresponding path program 1 times [2024-11-08 18:31:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663995500] [2024-11-08 18:31:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:01,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:01,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663995500] [2024-11-08 18:31:01,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663995500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:01,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861640648] [2024-11-08 18:31:01,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:01,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:01,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:01,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:01,998 INFO L87 Difference]: Start difference. First operand 240 states and 344 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:02,069 INFO L93 Difference]: Finished difference Result 370 states and 534 transitions. [2024-11-08 18:31:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-08 18:31:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:02,076 INFO L225 Difference]: With dead ends: 370 [2024-11-08 18:31:02,076 INFO L226 Difference]: Without dead ends: 370 [2024-11-08 18:31:02,079 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 [2024-11-08 18:31:02,080 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 136 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:02,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 674 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-08 18:31:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2024-11-08 18:31:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 353 states have (on average 1.4390934844192635) internal successors, (508), 364 states have internal predecessors, (508), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 18:31:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 534 transitions. [2024-11-08 18:31:02,155 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 534 transitions. Word has length 83 [2024-11-08 18:31:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:02,156 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 534 transitions. [2024-11-08 18:31:02,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 534 transitions. [2024-11-08 18:31:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:31:02,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:02,169 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:02,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:31:02,175 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:02,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2084407124, now seen corresponding path program 1 times [2024-11-08 18:31:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121812030] [2024-11-08 18:31:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:31:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:31:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:02,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:02,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121812030] [2024-11-08 18:31:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121812030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:02,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530842044] [2024-11-08 18:31:02,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:02,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:02,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:02,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:02,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:31:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:03,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:03,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:31:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530842044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:31:03,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:31:03,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-08 18:31:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196475116] [2024-11-08 18:31:03,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:31:03,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:31:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:31:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:31:03,766 INFO L87 Difference]: Start difference. First operand 370 states and 534 transitions. Second operand has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:31:04,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:04,333 INFO L93 Difference]: Finished difference Result 831 states and 1191 transitions. [2024-11-08 18:31:04,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:31:04,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 98 [2024-11-08 18:31:04,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:04,343 INFO L225 Difference]: With dead ends: 831 [2024-11-08 18:31:04,344 INFO L226 Difference]: Without dead ends: 831 [2024-11-08 18:31:04,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:31:04,345 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 1504 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:04,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1761 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:31:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-08 18:31:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 828. [2024-11-08 18:31:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 802 states have (on average 1.4114713216957606) internal successors, (1132), 813 states have internal predecessors, (1132), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:31:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1176 transitions. [2024-11-08 18:31:04,399 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1176 transitions. Word has length 98 [2024-11-08 18:31:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:04,402 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1176 transitions. [2024-11-08 18:31:04,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.125) internal successors, (257), 7 states have internal predecessors, (257), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:31:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1176 transitions. [2024-11-08 18:31:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-08 18:31:04,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:04,421 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:04,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:31:04,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:04,623 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:04,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash -148976922, now seen corresponding path program 1 times [2024-11-08 18:31:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:04,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6642834] [2024-11-08 18:31:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:06,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:31:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:06,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:31:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 7 proven. 329 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-08 18:31:06,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6642834] [2024-11-08 18:31:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6642834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817276493] [2024-11-08 18:31:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:06,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:06,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:06,046 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:06,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:31:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:06,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:31:06,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:07,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:31:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:08,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817276493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:31:08,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:31:08,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-08 18:31:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906577137] [2024-11-08 18:31:08,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:31:08,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 18:31:08,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 18:31:08,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:31:08,557 INFO L87 Difference]: Start difference. First operand 828 states and 1176 transitions. Second operand has 17 states, 17 states have (on average 49.88235294117647) internal successors, (848), 16 states have internal predecessors, (848), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:31:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:11,469 INFO L93 Difference]: Finished difference Result 1956 states and 2801 transitions. [2024-11-08 18:31:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:31:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 49.88235294117647) internal successors, (848), 16 states have internal predecessors, (848), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 326 [2024-11-08 18:31:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:11,481 INFO L225 Difference]: With dead ends: 1956 [2024-11-08 18:31:11,481 INFO L226 Difference]: Without dead ends: 1956 [2024-11-08 18:31:11,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:31:11,484 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 11605 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11605 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:11,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11605 Valid, 3696 Invalid, 832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:31:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2024-11-08 18:31:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1931. [2024-11-08 18:31:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1905 states have (on average 1.4173228346456692) internal successors, (2700), 1916 states have internal predecessors, (2700), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:31:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2744 transitions. [2024-11-08 18:31:11,538 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2744 transitions. Word has length 326 [2024-11-08 18:31:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:11,540 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2744 transitions. [2024-11-08 18:31:11,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 49.88235294117647) internal successors, (848), 16 states have internal predecessors, (848), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:31:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2744 transitions. [2024-11-08 18:31:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-08 18:31:11,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:11,572 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:11,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:31:11,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:11,773 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:11,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:11,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1051110887, now seen corresponding path program 1 times [2024-11-08 18:31:11,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:11,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317727695] [2024-11-08 18:31:11,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:11,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:38:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:29,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:38:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:29,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:38:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:29,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 505 proven. 3 refuted. 0 times theorem prover too weak. 2908 trivial. 0 not checked. [2024-11-08 18:38:29,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:38:29,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317727695] [2024-11-08 18:38:29,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317727695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:38:29,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904404587] [2024-11-08 18:38:29,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:29,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:38:29,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:38:29,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:38:29,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:38:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:44,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 18:38:44,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:44,568 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 22 treesize of output 7 [2024-11-08 18:38:45,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:38:45,353 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 56 treesize of output 40 [2024-11-08 18:38:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 1368 proven. 140 refuted. 0 times theorem prover too weak. 1908 trivial. 0 not checked. [2024-11-08 18:38:45,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:38:47,925 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 26 treesize of output 20 [2024-11-08 18:38:57,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904404587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:38:57,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:38:57,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13] total 16 [2024-11-08 18:38:57,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118734339] [2024-11-08 18:38:57,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:38:57,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:38:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:38:57,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:38:57,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:38:57,404 INFO L87 Difference]: Start difference. First operand 1931 states and 2744 transitions. Second operand has 16 states, 16 states have (on average 21.75) internal successors, (348), 15 states have internal predecessors, (348), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:39:04,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:04,502 INFO L93 Difference]: Finished difference Result 1984 states and 2821 transitions. [2024-11-08 18:39:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:39:04,503 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.75) internal successors, (348), 15 states have internal predecessors, (348), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 787 [2024-11-08 18:39:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:04,511 INFO L225 Difference]: With dead ends: 1984 [2024-11-08 18:39:04,512 INFO L226 Difference]: Without dead ends: 1984 [2024-11-08 18:39:04,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1526 GetRequests, 1491 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:39:04,513 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 944 mSDsluCounter, 7195 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 8088 SdHoareTripleChecker+Invalid, 4033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:04,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 8088 Invalid, 4033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-08 18:39:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2024-11-08 18:39:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1965. [2024-11-08 18:39:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1938 states have (on average 1.414860681114551) internal successors, (2742), 1950 states have internal predecessors, (2742), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (32), 13 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-08 18:39:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2796 transitions. [2024-11-08 18:39:04,591 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2796 transitions. Word has length 787 [2024-11-08 18:39:04,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:04,593 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2796 transitions. [2024-11-08 18:39:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.75) internal successors, (348), 15 states have internal predecessors, (348), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:39:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2796 transitions. [2024-11-08 18:39:04,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-08 18:39:04,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:04,624 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2024-11-08 18:39:04,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:39:04,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:04,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:39:04,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 809517437, now seen corresponding path program 1 times [2024-11-08 18:39:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047436874] [2024-11-08 18:39:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:06,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:39:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:06,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:39:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 1357 proven. 0 refuted. 0 times theorem prover too weak. 2064 trivial. 0 not checked. [2024-11-08 18:39:06,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047436874] [2024-11-08 18:39:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047436874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:06,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:39:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392192267] [2024-11-08 18:39:06,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:06,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:06,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:06,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:06,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:06,173 INFO L87 Difference]: Start difference. First operand 1965 states and 2796 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:39:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:06,507 INFO L93 Difference]: Finished difference Result 2027 states and 2856 transitions. [2024-11-08 18:39:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:39:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 789 [2024-11-08 18:39:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:06,520 INFO L225 Difference]: With dead ends: 2027 [2024-11-08 18:39:06,521 INFO L226 Difference]: Without dead ends: 2027 [2024-11-08 18:39:06,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:06,523 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 10 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:06,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 889 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:39:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-08 18:39:06,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2027. [2024-11-08 18:39:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 2000 states have (on average 1.401) internal successors, (2802), 2012 states have internal predecessors, (2802), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (32), 13 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-08 18:39:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2856 transitions. [2024-11-08 18:39:06,582 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2856 transitions. Word has length 789 [2024-11-08 18:39:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:06,582 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 2856 transitions. [2024-11-08 18:39:06,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:39:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2856 transitions. [2024-11-08 18:39:06,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-08 18:39:06,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:06,594 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2024-11-08 18:39:06,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:39:06,595 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:39:06,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:06,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1979381757, now seen corresponding path program 1 times [2024-11-08 18:39:06,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:06,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918422001] [2024-11-08 18:39:06,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:06,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:07,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:39:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:07,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:39:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 1357 proven. 0 refuted. 0 times theorem prover too weak. 2064 trivial. 0 not checked. [2024-11-08 18:39:07,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:07,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918422001] [2024-11-08 18:39:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918422001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:39:07,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714591098] [2024-11-08 18:39:07,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:07,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:39:07,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:07,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:39:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:39:07,978 INFO L87 Difference]: Start difference. First operand 2027 states and 2856 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:39:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:08,305 INFO L93 Difference]: Finished difference Result 1444 states and 1936 transitions. [2024-11-08 18:39:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:39:08,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 789 [2024-11-08 18:39:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:08,311 INFO L225 Difference]: With dead ends: 1444 [2024-11-08 18:39:08,312 INFO L226 Difference]: Without dead ends: 1444 [2024-11-08 18:39:08,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:39:08,313 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 18 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:08,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 844 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:39:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-11-08 18:39:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1444. [2024-11-08 18:39:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1417 states have (on average 1.3281580804516584) internal successors, (1882), 1429 states have internal predecessors, (1882), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (32), 13 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-08 18:39:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1936 transitions. [2024-11-08 18:39:08,351 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1936 transitions. Word has length 789 [2024-11-08 18:39:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:08,351 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1936 transitions. [2024-11-08 18:39:08,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 4 states have internal predecessors, (193), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:39:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1936 transitions. [2024-11-08 18:39:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-08 18:39:08,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:08,365 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2024-11-08 18:39:08,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:39:08,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:39:08,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:08,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1614299808, now seen corresponding path program 1 times [2024-11-08 18:39:08,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:08,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077374216] [2024-11-08 18:39:08,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:08,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:11,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:42:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:42:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 505 proven. 7 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2024-11-08 18:42:11,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077374216] [2024-11-08 18:42:11,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077374216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:42:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400603667] [2024-11-08 18:42:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:11,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:11,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:11,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:11,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:42:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:20,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 3893 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-08 18:42:20,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:21,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-08 18:42:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 1685 proven. 323 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2024-11-08 18:42:22,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:42:33,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400603667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:42:33,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:42:33,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15] total 19 [2024-11-08 18:42:33,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81156809] [2024-11-08 18:42:33,849 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:42:33,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:42:33,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:33,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:42:33,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:42:33,852 INFO L87 Difference]: Start difference. First operand 1444 states and 1936 transitions. Second operand has 19 states, 19 states have (on average 22.57894736842105) internal successors, (429), 18 states have internal predecessors, (429), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:42:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:40,366 INFO L93 Difference]: Finished difference Result 1447 states and 1948 transitions. [2024-11-08 18:42:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:42:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 22.57894736842105) internal successors, (429), 18 states have internal predecessors, (429), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 790 [2024-11-08 18:42:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:40,372 INFO L225 Difference]: With dead ends: 1447 [2024-11-08 18:42:40,372 INFO L226 Difference]: Without dead ends: 1447 [2024-11-08 18:42:40,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1525 GetRequests, 1487 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=267, Invalid=1293, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 18:42:40,373 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 610 mSDsluCounter, 8238 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 9035 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:40,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 9035 Invalid, 2829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 18:42:40,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-08 18:42:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1445. [2024-11-08 18:42:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1418 states have (on average 1.3279266572637518) internal successors, (1883), 1430 states have internal predecessors, (1883), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (32), 13 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-08 18:42:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1937 transitions. [2024-11-08 18:42:40,436 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1937 transitions. Word has length 790 [2024-11-08 18:42:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:40,437 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1937 transitions. [2024-11-08 18:42:40,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 22.57894736842105) internal successors, (429), 18 states have internal predecessors, (429), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 18:42:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1937 transitions. [2024-11-08 18:42:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-11-08 18:42:40,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:40,449 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 4, 2, 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] [2024-11-08 18:42:40,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:40,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d990e45-461e-4ca5-b508-a3b6b3436396/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:40,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:42:40,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1914193861, now seen corresponding path program 2 times [2024-11-08 18:42:40,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:40,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688181078] [2024-11-08 18:42:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:40,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms