./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB --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 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:16:57,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:16:57,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 05:16:57,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:16:57,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:16:57,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:16:57,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:16:57,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:16:57,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:16:57,482 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:16:57,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:16:57,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:16:57,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:16:57,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:16:57,484 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:16:57,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:16:57,485 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:16:57,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:16:57,487 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:16:57,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:16:57,487 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:16:57,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:16:57,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:16:57,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:16:57,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:16:57,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:16:57,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:16:57,490 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 [2024-11-28 05:16:57,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:16:57,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:16:57,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:16:57,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:16:57,931 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:16:57,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2024-11-28 05:17:01,591 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/data/08ab08298/fbe0318f06114b41bf6f9e2934ed0be8/FLAG971228c00 [2024-11-28 05:17:02,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:17:02,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2024-11-28 05:17:02,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/data/08ab08298/fbe0318f06114b41bf6f9e2934ed0be8/FLAG971228c00 [2024-11-28 05:17:02,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/data/08ab08298/fbe0318f06114b41bf6f9e2934ed0be8 [2024-11-28 05:17:02,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:17:02,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:17:02,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:17:02,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:17:02,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:17:02,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:17:02" (1/1) ... [2024-11-28 05:17:02,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a881931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:02, skipping insertion in model container [2024-11-28 05:17:02,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:17:02" (1/1) ... [2024-11-28 05:17:02,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:17:03,624 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,687 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,692 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,697 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,712 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,770 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,777 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,785 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,793 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,836 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,836 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,839 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,839 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,862 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,862 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,865 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,865 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,886 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,886 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,889 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,889 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,909 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,909 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,912 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,912 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:17:03,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:17:03,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:17:04,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:17:04,296 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:17:04,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04 WrapperNode [2024-11-28 05:17:04,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:17:04,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:17:04,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:17:04,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:17:04,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,500 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3334 [2024-11-28 05:17:04,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:17:04,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:17:04,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:17:04,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:17:04,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,748 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 106, 372]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 4, 82]. [2024-11-28 05:17:04,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,849 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:17:04,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:17:04,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:17:04,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:17:04,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (1/1) ... [2024-11-28 05:17:04,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:17:04,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:04,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:17:05,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:17:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-28 05:17:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-28 05:17:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:17:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:17:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:17:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:17:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:17:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:17:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:17:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:17:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:17:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:17:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:17:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:17:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:17:05,497 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:17:05,500 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:17:10,589 INFO L? ?]: Removed 782 outVars from TransFormulas that were not future-live. [2024-11-28 05:17:10,589 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:17:10,651 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:17:10,655 INFO L312 CfgBuilder]: Removed 85 assume(true) statements. [2024-11-28 05:17:10,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:17:10 BoogieIcfgContainer [2024-11-28 05:17:10,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:17:10,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:17:10,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:17:10,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:17:10,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:17:02" (1/3) ... [2024-11-28 05:17:10,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccf0147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:17:10, skipping insertion in model container [2024-11-28 05:17:10,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:04" (2/3) ... [2024-11-28 05:17:10,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccf0147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:17:10, skipping insertion in model container [2024-11-28 05:17:10,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:17:10" (3/3) ... [2024-11-28 05:17:10,674 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-1.i [2024-11-28 05:17:10,694 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:17:10,697 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test10-1.i that has 6 procedures, 1056 locations, 1 initial locations, 84 loop locations, and 2 error locations. [2024-11-28 05:17:10,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:17:10,824 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;@32fe736e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:17:10,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:17:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 1048 states, 1028 states have (on average 1.6196498054474708) internal successors, (1665), 1034 states have internal predecessors, (1665), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:17:10,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:10,851 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:10,852 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:10,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:10,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1512517996, now seen corresponding path program 1 times [2024-11-28 05:17:10,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:10,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080548757] [2024-11-28 05:17:10,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:10,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:11,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:11,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080548757] [2024-11-28 05:17:11,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080548757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:11,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:17:11,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017794691] [2024-11-28 05:17:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:11,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:17:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:11,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:17:11,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:17:11,183 INFO L87 Difference]: Start difference. First operand has 1048 states, 1028 states have (on average 1.6196498054474708) internal successors, (1665), 1034 states have internal predecessors, (1665), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:11,303 INFO L93 Difference]: Finished difference Result 1047 states and 1532 transitions. [2024-11-28 05:17:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:17:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 05:17:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:11,336 INFO L225 Difference]: With dead ends: 1047 [2024-11-28 05:17:11,336 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 05:17:11,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:17:11,345 INFO L435 NwaCegarLoop]: 1532 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:11,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:17:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 05:17:11,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2024-11-28 05:17:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1026 states have (on average 1.4639376218323588) internal successors, (1502), 1031 states have internal predecessors, (1502), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1530 transitions. [2024-11-28 05:17:11,511 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1530 transitions. Word has length 14 [2024-11-28 05:17:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:11,512 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1530 transitions. [2024-11-28 05:17:11,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1530 transitions. [2024-11-28 05:17:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 05:17:11,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:11,518 INFO L218 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] [2024-11-28 05:17:11,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:17:11,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:11,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -335305843, now seen corresponding path program 1 times [2024-11-28 05:17:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884608254] [2024-11-28 05:17:11,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:12,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:12,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884608254] [2024-11-28 05:17:12,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884608254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:12,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:12,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682503245] [2024-11-28 05:17:12,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:12,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:12,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:12,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:12,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:12,368 INFO L87 Difference]: Start difference. First operand 1045 states and 1530 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:12,710 INFO L93 Difference]: Finished difference Result 1438 states and 2098 transitions. [2024-11-28 05:17:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-28 05:17:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:12,720 INFO L225 Difference]: With dead ends: 1438 [2024-11-28 05:17:12,720 INFO L226 Difference]: Without dead ends: 1438 [2024-11-28 05:17:12,721 INFO L434 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 [2024-11-28 05:17:12,722 INFO L435 NwaCegarLoop]: 1526 mSDtfsCounter, 555 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:12,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 4511 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:17:12,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-28 05:17:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1047. [2024-11-28 05:17:12,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1028 states have (on average 1.4630350194552528) internal successors, (1504), 1033 states have internal predecessors, (1504), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:12,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1532 transitions. [2024-11-28 05:17:12,772 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1532 transitions. Word has length 69 [2024-11-28 05:17:12,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:12,772 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1532 transitions. [2024-11-28 05:17:12,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1532 transitions. [2024-11-28 05:17:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:17:12,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:12,781 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:12,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:17:12,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:12,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:12,782 INFO L85 PathProgramCache]: Analyzing trace with hash -552378672, now seen corresponding path program 1 times [2024-11-28 05:17:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:12,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626982089] [2024-11-28 05:17:12,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:12,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:13,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:13,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626982089] [2024-11-28 05:17:13,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626982089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:13,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723727821] [2024-11-28 05:17:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:13,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:13,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:13,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:13,923 INFO L87 Difference]: Start difference. First operand 1047 states and 1532 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:14,223 INFO L93 Difference]: Finished difference Result 1438 states and 2097 transitions. [2024-11-28 05:17:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-28 05:17:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:14,232 INFO L225 Difference]: With dead ends: 1438 [2024-11-28 05:17:14,232 INFO L226 Difference]: Without dead ends: 1438 [2024-11-28 05:17:14,233 INFO L434 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 [2024-11-28 05:17:14,234 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 550 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 4699 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:14,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 4699 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:17:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-28 05:17:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1051. [2024-11-28 05:17:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1032 states have (on average 1.4612403100775193) internal successors, (1508), 1037 states have internal predecessors, (1508), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1536 transitions. [2024-11-28 05:17:14,281 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1536 transitions. Word has length 147 [2024-11-28 05:17:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:14,281 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1536 transitions. [2024-11-28 05:17:14,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:14,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1536 transitions. [2024-11-28 05:17:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:17:14,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:14,295 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:14,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:17:14,295 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:14,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash 438565577, now seen corresponding path program 1 times [2024-11-28 05:17:14,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:14,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578513631] [2024-11-28 05:17:14,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:14,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:15,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:15,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578513631] [2024-11-28 05:17:15,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578513631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:15,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:15,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014661881] [2024-11-28 05:17:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:15,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:15,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:15,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:15,023 INFO L87 Difference]: Start difference. First operand 1051 states and 1536 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:15,193 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-28 05:17:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:17:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-28 05:17:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:15,201 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 05:17:15,201 INFO L226 Difference]: Without dead ends: 1008 [2024-11-28 05:17:15,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:15,204 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 33 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4259 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:15,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4259 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-28 05:17:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2024-11-28 05:17:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 989 states have (on average 1.4459049544994944) internal successors, (1430), 994 states have internal predecessors, (1430), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1458 transitions. [2024-11-28 05:17:15,250 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1458 transitions. Word has length 218 [2024-11-28 05:17:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:15,250 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1458 transitions. [2024-11-28 05:17:15,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1458 transitions. [2024-11-28 05:17:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:17:15,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:15,256 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:15,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:17:15,256 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:15,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:15,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1017110105, now seen corresponding path program 1 times [2024-11-28 05:17:15,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:15,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182216237] [2024-11-28 05:17:15,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:15,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:15,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:15,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182216237] [2024-11-28 05:17:15,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182216237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:15,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:15,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:15,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397005847] [2024-11-28 05:17:15,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:15,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:15,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:15,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:15,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:15,842 INFO L87 Difference]: Start difference. First operand 1008 states and 1458 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:15,939 INFO L93 Difference]: Finished difference Result 1008 states and 1455 transitions. [2024-11-28 05:17:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-28 05:17:15,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:15,946 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 05:17:15,946 INFO L226 Difference]: Without dead ends: 1008 [2024-11-28 05:17:15,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:15,947 INFO L435 NwaCegarLoop]: 1440 mSDtfsCounter, 2 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:15,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2858 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-28 05:17:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2024-11-28 05:17:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 989 states have (on average 1.442871587462083) internal successors, (1427), 994 states have internal predecessors, (1427), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 05:17:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1455 transitions. [2024-11-28 05:17:15,994 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1455 transitions. Word has length 218 [2024-11-28 05:17:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:15,994 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1455 transitions. [2024-11-28 05:17:15,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:15,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1455 transitions. [2024-11-28 05:17:16,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:17:16,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:16,000 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:16,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:17:16,001 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:16,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:16,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1093165, now seen corresponding path program 1 times [2024-11-28 05:17:16,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:16,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657076386] [2024-11-28 05:17:16,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:16,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:16,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657076386] [2024-11-28 05:17:16,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657076386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:16,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:16,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:16,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957265133] [2024-11-28 05:17:16,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:16,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:16,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:16,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:16,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:16,455 INFO L87 Difference]: Start difference. First operand 1008 states and 1455 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:16,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:16,579 INFO L93 Difference]: Finished difference Result 1547 states and 2241 transitions. [2024-11-28 05:17:16,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:16,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-28 05:17:16,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:16,588 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 05:17:16,589 INFO L226 Difference]: Without dead ends: 1547 [2024-11-28 05:17:16,589 INFO L434 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 [2024-11-28 05:17:16,590 INFO L435 NwaCegarLoop]: 1444 mSDtfsCounter, 723 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:16,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 2870 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-28 05:17:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1383. [2024-11-28 05:17:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1362 states have (on average 1.445668135095448) internal successors, (1969), 1367 states have internal predecessors, (1969), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 05:17:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2001 transitions. [2024-11-28 05:17:16,643 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2001 transitions. Word has length 218 [2024-11-28 05:17:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:16,644 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2001 transitions. [2024-11-28 05:17:16,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2001 transitions. [2024-11-28 05:17:16,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:17:16,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:16,650 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:16,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:17:16,650 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:16,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1858561889, now seen corresponding path program 1 times [2024-11-28 05:17:16,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:16,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561489644] [2024-11-28 05:17:16,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:16,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:17:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561489644] [2024-11-28 05:17:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561489644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:17,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:17,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856352647] [2024-11-28 05:17:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:17,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:17,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:17,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:17,412 INFO L87 Difference]: Start difference. First operand 1383 states and 2001 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:17,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:17,563 INFO L93 Difference]: Finished difference Result 1340 states and 1923 transitions. [2024-11-28 05:17:17,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:17:17,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 233 [2024-11-28 05:17:17,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:17,571 INFO L225 Difference]: With dead ends: 1340 [2024-11-28 05:17:17,571 INFO L226 Difference]: Without dead ends: 1340 [2024-11-28 05:17:17,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:17,572 INFO L435 NwaCegarLoop]: 1342 mSDtfsCounter, 30 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:17,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4008 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-28 05:17:17,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2024-11-28 05:17:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1319 states have (on average 1.4336618650492798) internal successors, (1891), 1324 states have internal predecessors, (1891), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 05:17:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1923 transitions. [2024-11-28 05:17:17,621 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1923 transitions. Word has length 233 [2024-11-28 05:17:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:17,622 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1923 transitions. [2024-11-28 05:17:17,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1923 transitions. [2024-11-28 05:17:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:17:17,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:17,627 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:17,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:17:17,628 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:17,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:17,628 INFO L85 PathProgramCache]: Analyzing trace with hash 414026131, now seen corresponding path program 1 times [2024-11-28 05:17:17,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:17,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757130959] [2024-11-28 05:17:17,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:17,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:17:18,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:18,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757130959] [2024-11-28 05:17:18,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757130959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:18,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:18,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:18,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114360478] [2024-11-28 05:17:18,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:18,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:18,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:18,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:18,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:18,151 INFO L87 Difference]: Start difference. First operand 1340 states and 1923 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:18,241 INFO L93 Difference]: Finished difference Result 1340 states and 1920 transitions. [2024-11-28 05:17:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 233 [2024-11-28 05:17:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:18,249 INFO L225 Difference]: With dead ends: 1340 [2024-11-28 05:17:18,249 INFO L226 Difference]: Without dead ends: 1340 [2024-11-28 05:17:18,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:18,250 INFO L435 NwaCegarLoop]: 1356 mSDtfsCounter, 1 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:18,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2690 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-28 05:17:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2024-11-28 05:17:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1319 states have (on average 1.4313874147081123) internal successors, (1888), 1324 states have internal predecessors, (1888), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 05:17:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1920 transitions. [2024-11-28 05:17:18,295 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1920 transitions. Word has length 233 [2024-11-28 05:17:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:18,295 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1920 transitions. [2024-11-28 05:17:18,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1920 transitions. [2024-11-28 05:17:18,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:17:18,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:18,300 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:18,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:17:18,301 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:18,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:18,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1255217001, now seen corresponding path program 1 times [2024-11-28 05:17:18,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:18,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150084457] [2024-11-28 05:17:18,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:18,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:18,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:17:18,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:18,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150084457] [2024-11-28 05:17:18,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150084457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:18,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:18,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68228655] [2024-11-28 05:17:18,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:18,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:18,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:18,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:18,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:18,932 INFO L87 Difference]: Start difference. First operand 1340 states and 1920 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:19,100 INFO L93 Difference]: Finished difference Result 1920 states and 2758 transitions. [2024-11-28 05:17:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 233 [2024-11-28 05:17:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:19,112 INFO L225 Difference]: With dead ends: 1920 [2024-11-28 05:17:19,112 INFO L226 Difference]: Without dead ends: 1920 [2024-11-28 05:17:19,112 INFO L434 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 [2024-11-28 05:17:19,113 INFO L435 NwaCegarLoop]: 1788 mSDtfsCounter, 603 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:19,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 3131 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2024-11-28 05:17:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1912. [2024-11-28 05:17:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1885 states have (on average 1.4355437665782493) internal successors, (2706), 1890 states have internal predecessors, (2706), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 05:17:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2750 transitions. [2024-11-28 05:17:19,191 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2750 transitions. Word has length 233 [2024-11-28 05:17:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:19,192 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2750 transitions. [2024-11-28 05:17:19,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:17:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2750 transitions. [2024-11-28 05:17:19,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-28 05:17:19,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:19,198 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:19,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:17:19,198 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:19,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1723367856, now seen corresponding path program 1 times [2024-11-28 05:17:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:19,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893018007] [2024-11-28 05:17:19,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:19,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893018007] [2024-11-28 05:17:19,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893018007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:19,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:19,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:17:19,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234561347] [2024-11-28 05:17:19,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:19,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:17:19,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:19,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:17:19,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:19,955 INFO L87 Difference]: Start difference. First operand 1912 states and 2750 transitions. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:17:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:22,017 INFO L93 Difference]: Finished difference Result 2463 states and 3549 transitions. [2024-11-28 05:17:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:17:22,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 248 [2024-11-28 05:17:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:22,033 INFO L225 Difference]: With dead ends: 2463 [2024-11-28 05:17:22,033 INFO L226 Difference]: Without dead ends: 2463 [2024-11-28 05:17:22,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:17:22,035 INFO L435 NwaCegarLoop]: 1434 mSDtfsCounter, 3582 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3588 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:22,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3588 Valid, 3019 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:17:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2024-11-28 05:17:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1479. [2024-11-28 05:17:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1457 states have (on average 1.418668496911462) internal successors, (2067), 1462 states have internal predecessors, (2067), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 05:17:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2101 transitions. [2024-11-28 05:17:22,107 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2101 transitions. Word has length 248 [2024-11-28 05:17:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:22,108 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2101 transitions. [2024-11-28 05:17:22,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:17:22,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2101 transitions. [2024-11-28 05:17:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-28 05:17:22,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:22,114 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:17:22,115 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:22,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2054834168, now seen corresponding path program 1 times [2024-11-28 05:17:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125896267] [2024-11-28 05:17:22,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 05:17:23,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:23,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125896267] [2024-11-28 05:17:23,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125896267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:23,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:17:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356024852] [2024-11-28 05:17:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:23,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:23,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:23,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:17:23,012 INFO L87 Difference]: Start difference. First operand 1479 states and 2101 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:23,175 INFO L93 Difference]: Finished difference Result 1436 states and 2023 transitions. [2024-11-28 05:17:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:17:23,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 258 [2024-11-28 05:17:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:23,185 INFO L225 Difference]: With dead ends: 1436 [2024-11-28 05:17:23,185 INFO L226 Difference]: Without dead ends: 1436 [2024-11-28 05:17:23,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:17:23,187 INFO L435 NwaCegarLoop]: 1257 mSDtfsCounter, 30 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:23,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3752 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:17:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-28 05:17:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2024-11-28 05:17:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1414 states have (on average 1.4066478076379068) internal successors, (1989), 1419 states have internal predecessors, (1989), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 05:17:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2023 transitions. [2024-11-28 05:17:23,258 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2023 transitions. Word has length 258 [2024-11-28 05:17:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:23,259 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2023 transitions. [2024-11-28 05:17:23,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2023 transitions. [2024-11-28 05:17:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-28 05:17:23,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:23,269 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:23,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:17:23,270 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:23,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1464969732, now seen corresponding path program 1 times [2024-11-28 05:17:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:23,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598870814] [2024-11-28 05:17:23,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:23,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:25,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598870814] [2024-11-28 05:17:25,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598870814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:25,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895103130] [2024-11-28 05:17:25,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:25,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:25,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:25,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:25,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:17:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:26,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:17:26,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:27,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:27,537 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 15 treesize of output 7 [2024-11-28 05:17:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:27,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:27,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895103130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:27,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:17:27,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-28 05:17:27,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620946907] [2024-11-28 05:17:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:27,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:27,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:27,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:17:27,569 INFO L87 Difference]: Start difference. First operand 1436 states and 2023 transitions. Second operand has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:29,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:17:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:29,775 INFO L93 Difference]: Finished difference Result 1767 states and 2459 transitions. [2024-11-28 05:17:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:17:29,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 258 [2024-11-28 05:17:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:29,785 INFO L225 Difference]: With dead ends: 1767 [2024-11-28 05:17:29,785 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 05:17:29,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 247 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:17:29,787 INFO L435 NwaCegarLoop]: 1216 mSDtfsCounter, 2501 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 4549 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:29,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 4549 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 05:17:29,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 05:17:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1609. [2024-11-28 05:17:29,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1577 states have (on average 1.3975903614457832) internal successors, (2204), 1586 states have internal predecessors, (2204), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 18 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 05:17:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2252 transitions. [2024-11-28 05:17:29,852 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2252 transitions. Word has length 258 [2024-11-28 05:17:29,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:29,853 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2252 transitions. [2024-11-28 05:17:29,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2252 transitions. [2024-11-28 05:17:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-28 05:17:29,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:29,861 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:29,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:17:30,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:30,065 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:30,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1582996995, now seen corresponding path program 1 times [2024-11-28 05:17:30,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:30,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691219145] [2024-11-28 05:17:30,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:30,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:32,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:32,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691219145] [2024-11-28 05:17:32,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691219145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:32,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616019070] [2024-11-28 05:17:32,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:32,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:32,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:17:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:33,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:17:33,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:33,775 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 15 treesize of output 1 [2024-11-28 05:17:34,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:34,591 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 15 treesize of output 7 [2024-11-28 05:17:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:34,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:35,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616019070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:17:35,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:17:35,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 12 [2024-11-28 05:17:35,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334514643] [2024-11-28 05:17:35,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:17:35,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:17:35,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:35,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:17:35,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:17:35,254 INFO L87 Difference]: Start difference. First operand 1609 states and 2252 transitions. Second operand has 12 states, 12 states have (on average 40.916666666666664) internal successors, (491), 12 states have internal predecessors, (491), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 05:17:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:36,061 INFO L93 Difference]: Finished difference Result 2571 states and 3519 transitions. [2024-11-28 05:17:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:17:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 40.916666666666664) internal successors, (491), 12 states have internal predecessors, (491), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 336 [2024-11-28 05:17:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:36,073 INFO L225 Difference]: With dead ends: 2571 [2024-11-28 05:17:36,074 INFO L226 Difference]: Without dead ends: 2571 [2024-11-28 05:17:36,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 661 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:17:36,075 INFO L435 NwaCegarLoop]: 1244 mSDtfsCounter, 2316 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 7368 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:36,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 7368 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:17:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-11-28 05:17:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2279. [2024-11-28 05:17:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2235 states have (on average 1.3700223713646533) internal successors, (3062), 2244 states have internal predecessors, (3062), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 29 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-28 05:17:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3132 transitions. [2024-11-28 05:17:36,159 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3132 transitions. Word has length 336 [2024-11-28 05:17:36,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:36,160 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3132 transitions. [2024-11-28 05:17:36,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.916666666666664) internal successors, (491), 12 states have internal predecessors, (491), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 05:17:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3132 transitions. [2024-11-28 05:17:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2024-11-28 05:17:36,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:36,188 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:36,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:36,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:36,393 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:36,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash 416957779, now seen corresponding path program 1 times [2024-11-28 05:17:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:36,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072788186] [2024-11-28 05:17:36,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 296 proven. 906 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:46,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:46,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072788186] [2024-11-28 05:17:46,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072788186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:46,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985365942] [2024-11-28 05:17:46,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:46,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:46,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:46,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:46,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:17:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:49,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 3738 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 05:17:49,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:49,124 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 15 treesize of output 1 [2024-11-28 05:17:49,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:50,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:50,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:51,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:17:51,254 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 15 treesize of output 7 [2024-11-28 05:17:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 296 proven. 906 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:51,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 296 proven. 906 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:17:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985365942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:17:53,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:17:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 21 [2024-11-28 05:17:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140315466] [2024-11-28 05:17:53,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:17:53,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:17:53,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:53,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:17:53,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:17:53,306 INFO L87 Difference]: Start difference. First operand 2279 states and 3132 transitions. Second operand has 21 states, 21 states have (on average 66.23809523809524) internal successors, (1391), 21 states have internal predecessors, (1391), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 05:17:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:54,948 INFO L93 Difference]: Finished difference Result 4359 states and 5877 transitions. [2024-11-28 05:17:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 05:17:54,950 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 66.23809523809524) internal successors, (1391), 21 states have internal predecessors, (1391), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 783 [2024-11-28 05:17:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:54,968 INFO L225 Difference]: With dead ends: 4359 [2024-11-28 05:17:54,968 INFO L226 Difference]: Without dead ends: 4359 [2024-11-28 05:17:54,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1588 GetRequests, 1552 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2024-11-28 05:17:54,970 INFO L435 NwaCegarLoop]: 1244 mSDtfsCounter, 5034 mSDsluCounter, 10767 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5076 SdHoareTripleChecker+Valid, 12011 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:54,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5076 Valid, 12011 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:17:54,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2024-11-28 05:17:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 4067. [2024-11-28 05:17:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3999 states have (on average 1.3433358339584895) internal successors, (5372), 4008 states have internal predecessors, (5372), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 05:17:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5490 transitions. [2024-11-28 05:17:55,274 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5490 transitions. Word has length 783 [2024-11-28 05:17:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:55,276 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5490 transitions. [2024-11-28 05:17:55,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 66.23809523809524) internal successors, (1391), 21 states have internal predecessors, (1391), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 05:17:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5490 transitions. [2024-11-28 05:17:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1678 [2024-11-28 05:17:55,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:55,592 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:55,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:55,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 05:17:55,793 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:55,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -620982253, now seen corresponding path program 2 times [2024-11-28 05:17:55,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638765167] [2024-11-28 05:17:55,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:17:55,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:56,734 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:17:56,734 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:17:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7493 trivial. 0 not checked. [2024-11-28 05:17:57,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:57,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638765167] [2024-11-28 05:17:57,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638765167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:57,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:57,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:17:57,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782085953] [2024-11-28 05:17:57,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:57,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:17:57,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:57,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:17:57,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:17:57,320 INFO L87 Difference]: Start difference. First operand 4067 states and 5490 transitions. Second operand has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:58,250 INFO L93 Difference]: Finished difference Result 4078 states and 5501 transitions. [2024-11-28 05:17:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:17:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1677 [2024-11-28 05:17:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:58,270 INFO L225 Difference]: With dead ends: 4078 [2024-11-28 05:17:58,270 INFO L226 Difference]: Without dead ends: 4078 [2024-11-28 05:17:58,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:17:58,271 INFO L435 NwaCegarLoop]: 1268 mSDtfsCounter, 20 mSDsluCounter, 5930 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:58,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 7198 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:17:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2024-11-28 05:17:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 4071. [2024-11-28 05:17:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4071 states, 4003 states have (on average 1.342992755433425) internal successors, (5376), 4012 states have internal predecessors, (5376), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 05:17:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5494 transitions. [2024-11-28 05:17:58,371 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5494 transitions. Word has length 1677 [2024-11-28 05:17:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:58,374 INFO L471 AbstractCegarLoop]: Abstraction has 4071 states and 5494 transitions. [2024-11-28 05:17:58,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:17:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5494 transitions. [2024-11-28 05:17:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1679 [2024-11-28 05:17:58,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:58,406 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:58,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:17:58,406 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:17:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash -636066161, now seen corresponding path program 1 times [2024-11-28 05:17:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746650153] [2024-11-28 05:17:58,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7493 trivial. 0 not checked. [2024-11-28 05:18:07,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:07,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746650153] [2024-11-28 05:18:07,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746650153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:07,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:07,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:18:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134329907] [2024-11-28 05:18:07,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:07,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:18:07,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:07,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:18:07,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:18:07,684 INFO L87 Difference]: Start difference. First operand 4071 states and 5494 transitions. Second operand has 8 states, 8 states have (on average 30.75) internal successors, (246), 8 states have internal predecessors, (246), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:08,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:08,535 INFO L93 Difference]: Finished difference Result 4086 states and 5512 transitions. [2024-11-28 05:18:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:18:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.75) internal successors, (246), 8 states have internal predecessors, (246), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1678 [2024-11-28 05:18:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:08,558 INFO L225 Difference]: With dead ends: 4086 [2024-11-28 05:18:08,558 INFO L226 Difference]: Without dead ends: 4086 [2024-11-28 05:18:08,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:18:08,560 INFO L435 NwaCegarLoop]: 1261 mSDtfsCounter, 25 mSDsluCounter, 5980 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7241 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:08,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 7241 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:18:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2024-11-28 05:18:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 4075. [2024-11-28 05:18:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 4007 states have (on average 1.3428999251310207) internal successors, (5381), 4016 states have internal predecessors, (5381), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 05:18:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 5499 transitions. [2024-11-28 05:18:08,709 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 5499 transitions. Word has length 1678 [2024-11-28 05:18:08,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:08,713 INFO L471 AbstractCegarLoop]: Abstraction has 4075 states and 5499 transitions. [2024-11-28 05:18:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.75) internal successors, (246), 8 states have internal predecessors, (246), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 5499 transitions. [2024-11-28 05:18:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1680 [2024-11-28 05:18:08,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:08,778 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:08,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:18:08,779 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:18:08,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:08,780 INFO L85 PathProgramCache]: Analyzing trace with hash -982307929, now seen corresponding path program 1 times [2024-11-28 05:18:08,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:08,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425165280] [2024-11-28 05:18:08,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:08,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7493 trivial. 0 not checked. [2024-11-28 05:18:17,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:17,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425165280] [2024-11-28 05:18:17,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425165280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:17,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:17,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:18:17,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703872300] [2024-11-28 05:18:17,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:17,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:18:17,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:17,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:18:17,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:18:17,938 INFO L87 Difference]: Start difference. First operand 4075 states and 5499 transitions. Second operand has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:18,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:18,922 INFO L93 Difference]: Finished difference Result 4086 states and 5513 transitions. [2024-11-28 05:18:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:18:18,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1679 [2024-11-28 05:18:18,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:18,937 INFO L225 Difference]: With dead ends: 4086 [2024-11-28 05:18:18,938 INFO L226 Difference]: Without dead ends: 4086 [2024-11-28 05:18:18,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:18:18,939 INFO L435 NwaCegarLoop]: 1264 mSDtfsCounter, 32 mSDsluCounter, 8419 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 9683 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:18,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 9683 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:18:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2024-11-28 05:18:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 4083. [2024-11-28 05:18:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 4015 states have (on average 1.342714819427148) internal successors, (5391), 4024 states have internal predecessors, (5391), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 05:18:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5509 transitions. [2024-11-28 05:18:19,023 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5509 transitions. Word has length 1679 [2024-11-28 05:18:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:19,027 INFO L471 AbstractCegarLoop]: Abstraction has 4083 states and 5509 transitions. [2024-11-28 05:18:19,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5509 transitions. [2024-11-28 05:18:19,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1680 [2024-11-28 05:18:19,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:19,060 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:19,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:18:19,060 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:18:19,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1852457262, now seen corresponding path program 1 times [2024-11-28 05:18:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:19,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083486974] [2024-11-28 05:18:19,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:19,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7493 trivial. 0 not checked. [2024-11-28 05:18:26,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:26,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083486974] [2024-11-28 05:18:26,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083486974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:26,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:26,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:18:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326808866] [2024-11-28 05:18:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:26,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:18:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:26,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:18:26,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:18:26,293 INFO L87 Difference]: Start difference. First operand 4083 states and 5509 transitions. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:26,932 INFO L93 Difference]: Finished difference Result 4092 states and 5518 transitions. [2024-11-28 05:18:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:18:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1679 [2024-11-28 05:18:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:26,947 INFO L225 Difference]: With dead ends: 4092 [2024-11-28 05:18:26,947 INFO L226 Difference]: Without dead ends: 4092 [2024-11-28 05:18:26,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:18:26,948 INFO L435 NwaCegarLoop]: 1272 mSDtfsCounter, 15 mSDsluCounter, 5946 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7218 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:26,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7218 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:18:26,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4092 states. [2024-11-28 05:18:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4092 to 4086. [2024-11-28 05:18:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4086 states, 4018 states have (on average 1.3424589347934295) internal successors, (5394), 4027 states have internal predecessors, (5394), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 05:18:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 5512 transitions. [2024-11-28 05:18:27,021 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 5512 transitions. Word has length 1679 [2024-11-28 05:18:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:27,025 INFO L471 AbstractCegarLoop]: Abstraction has 4086 states and 5512 transitions. [2024-11-28 05:18:27,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 5512 transitions. [2024-11-28 05:18:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1681 [2024-11-28 05:18:27,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:27,056 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:27,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:18:27,057 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:18:27,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2059181708, now seen corresponding path program 1 times [2024-11-28 05:18:27,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:27,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727366515] [2024-11-28 05:18:27,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:27,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 2025 proven. 76 refuted. 0 times theorem prover too weak. 5392 trivial. 0 not checked. [2024-11-28 05:18:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727366515] [2024-11-28 05:18:37,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727366515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:18:37,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783732051] [2024-11-28 05:18:37,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:37,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:18:37,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:18:37,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:18:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:42,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 7938 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 05:18:42,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:18:42,139 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 15 treesize of output 1 [2024-11-28 05:18:42,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:43,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:43,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:44,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:44,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:44,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:45,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:45,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:46,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:46,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:46,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:18:46,545 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 15 treesize of output 7 [2024-11-28 05:18:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 7469 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:18:46,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:18:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 7493 backedges. 0 proven. 7469 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:18:50,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783732051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:18:50,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:18:50,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 15] total 32 [2024-11-28 05:18:50,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809692844] [2024-11-28 05:18:50,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:18:50,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 05:18:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:50,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 05:18:50,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=636, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:18:50,520 INFO L87 Difference]: Start difference. First operand 4086 states and 5512 transitions. Second operand has 32 states, 32 states have (on average 106.78125) internal successors, (3417), 32 states have internal predecessors, (3417), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:18:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:54,211 INFO L93 Difference]: Finished difference Result 6127 states and 8203 transitions. [2024-11-28 05:18:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-28 05:18:54,214 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 106.78125) internal successors, (3417), 32 states have internal predecessors, (3417), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 1680 [2024-11-28 05:18:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:54,236 INFO L225 Difference]: With dead ends: 6127 [2024-11-28 05:18:54,236 INFO L226 Difference]: Without dead ends: 6127 [2024-11-28 05:18:54,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3415 GetRequests, 3331 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1671, Invalid=4491, Unknown=0, NotChecked=0, Total=6162 [2024-11-28 05:18:54,239 INFO L435 NwaCegarLoop]: 1213 mSDtfsCounter, 10753 mSDsluCounter, 14677 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10834 SdHoareTripleChecker+Valid, 15890 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:54,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10834 Valid, 15890 Invalid, 866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:18:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2024-11-28 05:18:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 6127. [2024-11-28 05:18:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6127 states, 6020 states have (on average 1.3300664451827242) internal successors, (8007), 6029 states have internal predecessors, (8007), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 05:18:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 8203 transitions. [2024-11-28 05:18:54,354 INFO L78 Accepts]: Start accepts. Automaton has 6127 states and 8203 transitions. Word has length 1680 [2024-11-28 05:18:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:54,356 INFO L471 AbstractCegarLoop]: Abstraction has 6127 states and 8203 transitions. [2024-11-28 05:18:54,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 106.78125) internal successors, (3417), 32 states have internal predecessors, (3417), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:18:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6127 states and 8203 transitions. [2024-11-28 05:18:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2695 [2024-11-28 05:18:54,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:54,435 INFO L218 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:54,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:18:54,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:54,637 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:18:54,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash 483882631, now seen corresponding path program 2 times [2024-11-28 05:18:54,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:54,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882563070] [2024-11-28 05:18:54,640 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:18:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:56,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:18:56,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:18:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 24731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24731 trivial. 0 not checked. [2024-11-28 05:18:56,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:56,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882563070] [2024-11-28 05:18:56,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882563070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:56,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:56,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:18:56,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816272814] [2024-11-28 05:18:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:56,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:18:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:56,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:18:56,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:18:56,588 INFO L87 Difference]: Start difference. First operand 6127 states and 8203 transitions. Second operand has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:57,651 INFO L93 Difference]: Finished difference Result 6139 states and 8216 transitions. [2024-11-28 05:18:57,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:18:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 2694 [2024-11-28 05:18:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:57,671 INFO L225 Difference]: With dead ends: 6139 [2024-11-28 05:18:57,671 INFO L226 Difference]: Without dead ends: 6139 [2024-11-28 05:18:57,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:18:57,672 INFO L435 NwaCegarLoop]: 1256 mSDtfsCounter, 417 mSDsluCounter, 6616 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:57,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 7872 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:18:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-11-28 05:18:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6134. [2024-11-28 05:18:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6027 states have (on average 1.3296830927492949) internal successors, (8014), 6036 states have internal predecessors, (8014), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 05:18:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 8210 transitions. [2024-11-28 05:18:57,765 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 8210 transitions. Word has length 2694 [2024-11-28 05:18:57,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:57,767 INFO L471 AbstractCegarLoop]: Abstraction has 6134 states and 8210 transitions. [2024-11-28 05:18:57,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:18:57,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 8210 transitions. [2024-11-28 05:18:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2695 [2024-11-28 05:18:57,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:57,839 INFO L218 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:57,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:18:57,840 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:18:57,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -88275277, now seen corresponding path program 1 times [2024-11-28 05:18:57,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:57,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040096712] [2024-11-28 05:18:57,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:57,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24731 backedges. 0 proven. 24707 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:21:09,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:09,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040096712] [2024-11-28 05:21:09,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040096712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:09,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939948641] [2024-11-28 05:21:09,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:09,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:09,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:09,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:09,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:21:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:16,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 12878 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-28 05:21:16,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:16,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:17,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:17,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:17,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:18,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:18,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:18,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:19,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:19,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:20,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:20,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:20,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:20,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:21,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:21,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:21,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:21,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:21,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:22,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:22,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:22,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:22,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:23,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:23,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-28 05:21:23,359 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 15 treesize of output 7 [2024-11-28 05:21:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 24731 backedges. 117 proven. 24590 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:21:23,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 24731 backedges. 117 proven. 24590 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:21:31,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939948641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:31,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 30, 29] total 92 [2024-11-28 05:21:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57654781] [2024-11-28 05:21:31,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:31,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-11-28 05:21:31,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:31,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-11-28 05:21:31,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3525, Invalid=4847, Unknown=0, NotChecked=0, Total=8372 [2024-11-28 05:21:31,382 INFO L87 Difference]: Start difference. First operand 6134 states and 8210 transitions. Second operand has 92 states, 92 states have (on average 72.51086956521739) internal successors, (6671), 92 states have internal predecessors, (6671), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:21:55,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:21:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:56,830 INFO L93 Difference]: Finished difference Result 11787 states and 15662 transitions. [2024-11-28 05:21:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2024-11-28 05:21:56,833 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 72.51086956521739) internal successors, (6671), 92 states have internal predecessors, (6671), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 2694 [2024-11-28 05:21:56,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:56,865 INFO L225 Difference]: With dead ends: 11787 [2024-11-28 05:21:56,865 INFO L226 Difference]: Without dead ends: 11787 [2024-11-28 05:21:56,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5542 GetRequests, 5351 SyntacticMatches, 7 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10440 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=9445, Invalid=24965, Unknown=0, NotChecked=0, Total=34410 [2024-11-28 05:21:56,875 INFO L435 NwaCegarLoop]: 1212 mSDtfsCounter, 35991 mSDsluCounter, 19726 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 174 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36179 SdHoareTripleChecker+Valid, 20938 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:56,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36179 Valid, 20938 Invalid, 1183 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [174 Valid, 1008 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 05:21:56,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11787 states. [2024-11-28 05:21:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11787 to 11629. [2024-11-28 05:21:57,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11629 states, 11417 states have (on average 1.3181220986248576) internal successors, (15049), 11426 states have internal predecessors, (15049), 203 states have call successors, (203), 7 states have call predecessors, (203), 7 states have return successors, (203), 197 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 05:21:57,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11629 states to 11629 states and 15455 transitions. [2024-11-28 05:21:57,046 INFO L78 Accepts]: Start accepts. Automaton has 11629 states and 15455 transitions. Word has length 2694 [2024-11-28 05:21:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:57,050 INFO L471 AbstractCegarLoop]: Abstraction has 11629 states and 15455 transitions. [2024-11-28 05:21:57,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 72.51086956521739) internal successors, (6671), 92 states have internal predecessors, (6671), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 05:21:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 11629 states and 15455 transitions. [2024-11-28 05:21:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5425 [2024-11-28 05:21:57,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:57,286 INFO L218 NwaCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 49, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:57,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:21:57,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a69d80-1bd6-46a3-bc46-69e527fd143c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:57,488 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:21:57,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash -693386232, now seen corresponding path program 2 times [2024-11-28 05:21:57,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:57,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076893101] [2024-11-28 05:21:57,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:21:57,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:59,677 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:21:59,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:21:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 136661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136661 trivial. 0 not checked. [2024-11-28 05:21:59,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:59,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076893101] [2024-11-28 05:21:59,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076893101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:59,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:59,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:21:59,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642274686] [2024-11-28 05:21:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:59,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:21:59,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:59,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:21:59,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:21:59,856 INFO L87 Difference]: Start difference. First operand 11629 states and 15455 transitions. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:22:00,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:00,495 INFO L93 Difference]: Finished difference Result 11663 states and 15501 transitions. [2024-11-28 05:22:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:22:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 5424 [2024-11-28 05:22:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:00,536 INFO L225 Difference]: With dead ends: 11663 [2024-11-28 05:22:00,537 INFO L226 Difference]: Without dead ends: 11663 [2024-11-28 05:22:00,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:22:00,540 INFO L435 NwaCegarLoop]: 1278 mSDtfsCounter, 78 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:00,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 6124 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:22:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11663 states. [2024-11-28 05:22:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11663 to 11631. [2024-11-28 05:22:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 11419 states have (on average 1.3180663805937474) internal successors, (15051), 11428 states have internal predecessors, (15051), 203 states have call successors, (203), 7 states have call predecessors, (203), 7 states have return successors, (203), 197 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 05:22:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 15457 transitions. [2024-11-28 05:22:00,705 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 15457 transitions. Word has length 5424 [2024-11-28 05:22:00,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:00,709 INFO L471 AbstractCegarLoop]: Abstraction has 11631 states and 15457 transitions. [2024-11-28 05:22:00,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:22:00,710 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 15457 transitions. [2024-11-28 05:22:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5425 [2024-11-28 05:22:01,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:01,150 INFO L218 NwaCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 49, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:01,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:22:01,151 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:22:01,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1417111706, now seen corresponding path program 1 times [2024-11-28 05:22:01,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:01,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794620742] [2024-11-28 05:22:01,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:01,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 136661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136661 trivial. 0 not checked. [2024-11-28 05:22:25,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:25,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794620742] [2024-11-28 05:22:25,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794620742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:22:25,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:22:25,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:22:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995193452] [2024-11-28 05:22:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:22:25,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:22:25,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:25,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:22:25,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:25,086 INFO L87 Difference]: Start difference. First operand 11631 states and 15457 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:22:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:25,167 INFO L93 Difference]: Finished difference Result 11612 states and 15431 transitions. [2024-11-28 05:22:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:22:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 5424 [2024-11-28 05:22:25,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:25,197 INFO L225 Difference]: With dead ends: 11612 [2024-11-28 05:22:25,197 INFO L226 Difference]: Without dead ends: 11612 [2024-11-28 05:22:25,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:22:25,198 INFO L435 NwaCegarLoop]: 1268 mSDtfsCounter, 1 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:25,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2514 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:22:25,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11612 states. [2024-11-28 05:22:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11612 to 11612. [2024-11-28 05:22:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11612 states, 11400 states have (on average 1.3179824561403508) internal successors, (15025), 11409 states have internal predecessors, (15025), 203 states have call successors, (203), 7 states have call predecessors, (203), 7 states have return successors, (203), 197 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 05:22:25,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11612 states to 11612 states and 15431 transitions. [2024-11-28 05:22:25,805 INFO L78 Accepts]: Start accepts. Automaton has 11612 states and 15431 transitions. Word has length 5424 [2024-11-28 05:22:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:25,809 INFO L471 AbstractCegarLoop]: Abstraction has 11612 states and 15431 transitions. [2024-11-28 05:22:25,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:22:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 11612 states and 15431 transitions. [2024-11-28 05:22:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5426 [2024-11-28 05:22:26,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:26,048 INFO L218 NwaCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 49, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:26,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 05:22:26,048 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:22:26,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:26,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2002917042, now seen corresponding path program 1 times [2024-11-28 05:22:26,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:26,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49970146] [2024-11-28 05:22:26,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:26,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms