./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/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_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/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_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/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 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:01:56,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:01:56,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 05:01:56,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:01:56,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:01:56,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:01:56,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:01:56,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:01:56,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:01:56,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:01:56,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:01:56,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:01:56,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:01:56,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:01:56,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:01:56,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:01:56,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:01:56,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:01:56,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:01:56,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:01:56,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:01:56,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:01:56,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:56,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:56,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:01:56,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:56,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:56,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:56,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:56,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:01:56,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:01:56,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:01:56,389 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_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/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 -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2024-11-28 05:01:56,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:01:56,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:01:56,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:01:56,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:01:56,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:01:56,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-28 05:01:59,823 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f27be63cb/c0690a2e43e440dea95ab99d09606f76/FLAG5bc50ad92 [2024-11-28 05:02:00,291 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:02:00,291 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2024-11-28 05:02:00,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f27be63cb/c0690a2e43e440dea95ab99d09606f76/FLAG5bc50ad92 [2024-11-28 05:02:00,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/data/f27be63cb/c0690a2e43e440dea95ab99d09606f76 [2024-11-28 05:02:00,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:02:00,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:02:00,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:00,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:02:00,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:02:00,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:00" (1/1) ... [2024-11-28 05:02:00,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d249ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:00, skipping insertion in model container [2024-11-28 05:02:00,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:00" (1/1) ... [2024-11-28 05:02:00,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:02:00,924 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 05:02:00,956 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 05:02:00,960 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 05:02:00,963 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 05:02:00,970 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 05:02:01,010 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 05:02:01,015 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 05:02:01,018 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 05:02:01,023 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 05:02:01,054 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 05:02:01,054 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 05:02:01,056 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 05:02:01,057 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 05:02:01,075 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 05:02:01,075 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 05:02:01,077 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 05:02:01,078 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 05:02:01,095 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 05:02:01,095 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 05:02:01,097 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 05:02:01,097 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 05:02:01,113 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 05:02:01,113 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 05:02:01,115 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 05:02:01,115 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 05:02:01,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:01,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:02:01,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:01,355 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:02:01,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01 WrapperNode [2024-11-28 05:02:01,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:01,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:01,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:02:01,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:02:01,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,540 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3334 [2024-11-28 05:02:01,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:01,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:02:01,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:02:01,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:02:01,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,728 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 372, 106]. 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, 82, 4]. [2024-11-28 05:02:01,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,816 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:02:01,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:02:01,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:02:01,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:02:01,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (1/1) ... [2024-11-28 05:02:01,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:01,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:01,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:02:01,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:02:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-28 05:02:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-28 05:02:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:02:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:02:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:02:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:02:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:02:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:02:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:02:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:02:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:02:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:02:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:02:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:02:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:02:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:02:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:02:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:02:02,374 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:02:02,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:02:06,303 INFO L? ?]: Removed 782 outVars from TransFormulas that were not future-live. [2024-11-28 05:02:06,303 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:02:06,334 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:02:06,334 INFO L312 CfgBuilder]: Removed 85 assume(true) statements. [2024-11-28 05:02:06,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:06 BoogieIcfgContainer [2024-11-28 05:02:06,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:02:06,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:02:06,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:02:06,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:02:06,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:02:00" (1/3) ... [2024-11-28 05:02:06,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eb9ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:06, skipping insertion in model container [2024-11-28 05:02:06,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:01" (2/3) ... [2024-11-28 05:02:06,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eb9ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:06, skipping insertion in model container [2024-11-28 05:02:06,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:06" (3/3) ... [2024-11-28 05:02:06,343 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2024-11-28 05:02:06,357 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:02:06,359 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test10-1.i that has 6 procedures, 1056 locations, 1 initial locations, 84 loop locations, and 2 error locations. [2024-11-28 05:02:06,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:06,436 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;@404dec89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:06,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:02:06,445 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 05:02:06,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:02:06,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:06,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:06,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:06,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1512517996, now seen corresponding path program 1 times [2024-11-28 05:02:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521510805] [2024-11-28 05:02:06,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:06,647 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 05:02:06,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:06,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521510805] [2024-11-28 05:02:06,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521510805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:06,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:06,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:06,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369382817] [2024-11-28 05:02:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:06,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:02:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:06,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:02:06,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:02:06,689 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 05:02:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:06,800 INFO L93 Difference]: Finished difference Result 1047 states and 1532 transitions. [2024-11-28 05:02:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:02:06,802 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 05:02:06,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:06,817 INFO L225 Difference]: With dead ends: 1047 [2024-11-28 05:02:06,817 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 05:02:06,819 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 05:02:06,822 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 05:02:06,823 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 05:02:06,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 05:02:06,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2024-11-28 05:02:06,898 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 05:02:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1530 transitions. [2024-11-28 05:02:06,911 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1530 transitions. Word has length 14 [2024-11-28 05:02:06,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:06,912 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1530 transitions. [2024-11-28 05:02:06,912 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 05:02:06,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1530 transitions. [2024-11-28 05:02:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 05:02:06,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:06,916 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 05:02:06,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:02:06,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:06,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash -335305843, now seen corresponding path program 1 times [2024-11-28 05:02:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:06,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724721610] [2024-11-28 05:02:06,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:06,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:07,586 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 05:02:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724721610] [2024-11-28 05:02:07,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724721610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:07,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:07,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:07,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705109235] [2024-11-28 05:02:07,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:07,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:07,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:07,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:07,592 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 05:02:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:07,883 INFO L93 Difference]: Finished difference Result 1438 states and 2098 transitions. [2024-11-28 05:02:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:07,884 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 05:02:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:07,893 INFO L225 Difference]: With dead ends: 1438 [2024-11-28 05:02:07,893 INFO L226 Difference]: Without dead ends: 1438 [2024-11-28 05:02:07,894 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 05:02:07,895 INFO L435 NwaCegarLoop]: 1526 mSDtfsCounter, 555 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 05:02:07,895 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 05:02:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-28 05:02:07,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1047. [2024-11-28 05:02:07,950 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 05:02:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1532 transitions. [2024-11-28 05:02:07,960 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1532 transitions. Word has length 69 [2024-11-28 05:02:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:07,960 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1532 transitions. [2024-11-28 05:02:07,960 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 05:02:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1532 transitions. [2024-11-28 05:02:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:02:07,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:07,973 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 05:02:07,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:02:07,973 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:07,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash -552378672, now seen corresponding path program 1 times [2024-11-28 05:02:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:07,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827636362] [2024-11-28 05:02:07,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:07,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:08,738 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 05:02:08,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:08,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827636362] [2024-11-28 05:02:08,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827636362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:08,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:08,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:08,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600030957] [2024-11-28 05:02:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:08,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:08,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:08,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:08,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:08,743 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 05:02:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:08,978 INFO L93 Difference]: Finished difference Result 1438 states and 2097 transitions. [2024-11-28 05:02:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:08,979 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 05:02:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:08,985 INFO L225 Difference]: With dead ends: 1438 [2024-11-28 05:02:08,986 INFO L226 Difference]: Without dead ends: 1438 [2024-11-28 05:02:08,986 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 05:02:08,989 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 550 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 05:02:08,990 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 05:02:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-28 05:02:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1051. [2024-11-28 05:02:09,031 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 05:02:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1536 transitions. [2024-11-28 05:02:09,038 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1536 transitions. Word has length 147 [2024-11-28 05:02:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:09,039 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1536 transitions. [2024-11-28 05:02:09,039 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 05:02:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1536 transitions. [2024-11-28 05:02:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:02:09,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:09,046 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 05:02:09,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:02:09,046 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:09,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:09,048 INFO L85 PathProgramCache]: Analyzing trace with hash 438565577, now seen corresponding path program 1 times [2024-11-28 05:02:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:09,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272641298] [2024-11-28 05:02:09,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:09,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:09,629 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 05:02:09,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:09,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272641298] [2024-11-28 05:02:09,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272641298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:09,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:09,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:09,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060413559] [2024-11-28 05:02:09,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:09,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:09,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:09,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:09,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:09,635 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 05:02:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:09,780 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-28 05:02:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:09,780 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 05:02:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:09,786 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 05:02:09,786 INFO L226 Difference]: Without dead ends: 1008 [2024-11-28 05:02:09,787 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 05:02:09,788 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 05:02:09,791 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 05:02:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-28 05:02:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2024-11-28 05:02:09,862 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 05:02:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1458 transitions. [2024-11-28 05:02:09,868 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1458 transitions. Word has length 218 [2024-11-28 05:02:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:09,868 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1458 transitions. [2024-11-28 05:02:09,869 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 05:02:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1458 transitions. [2024-11-28 05:02:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:02:09,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:09,874 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 05:02:09,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:02:09,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:09,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1017110105, now seen corresponding path program 1 times [2024-11-28 05:02:09,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:09,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838258012] [2024-11-28 05:02:09,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:10,265 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 05:02:10,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:10,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838258012] [2024-11-28 05:02:10,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838258012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:10,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:10,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:10,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690277578] [2024-11-28 05:02:10,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:10,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:10,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:10,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:10,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:10,270 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 05:02:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:10,354 INFO L93 Difference]: Finished difference Result 1008 states and 1455 transitions. [2024-11-28 05:02:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:10,354 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 05:02:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:10,359 INFO L225 Difference]: With dead ends: 1008 [2024-11-28 05:02:10,359 INFO L226 Difference]: Without dead ends: 1008 [2024-11-28 05:02:10,359 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 05:02:10,361 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 05:02:10,361 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 05:02:10,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-28 05:02:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2024-11-28 05:02:10,387 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 05:02:10,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1455 transitions. [2024-11-28 05:02:10,392 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1455 transitions. Word has length 218 [2024-11-28 05:02:10,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:10,393 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1455 transitions. [2024-11-28 05:02:10,393 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 05:02:10,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1455 transitions. [2024-11-28 05:02:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 05:02:10,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:10,401 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 05:02:10,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:02:10,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:10,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1093165, now seen corresponding path program 1 times [2024-11-28 05:02:10,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:10,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065722257] [2024-11-28 05:02:10,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:10,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:10,695 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 05:02:10,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:10,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065722257] [2024-11-28 05:02:10,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065722257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:10,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:10,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:10,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185561987] [2024-11-28 05:02:10,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:10,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:10,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:10,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:10,698 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 05:02:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:10,811 INFO L93 Difference]: Finished difference Result 1547 states and 2241 transitions. [2024-11-28 05:02:10,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:10,812 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 05:02:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:10,819 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 05:02:10,819 INFO L226 Difference]: Without dead ends: 1547 [2024-11-28 05:02:10,819 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 05:02:10,820 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 05:02:10,820 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 05:02:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-28 05:02:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1383. [2024-11-28 05:02:10,899 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 05:02:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2001 transitions. [2024-11-28 05:02:10,907 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2001 transitions. Word has length 218 [2024-11-28 05:02:10,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:10,908 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2001 transitions. [2024-11-28 05:02:10,908 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 05:02:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2001 transitions. [2024-11-28 05:02:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:02:10,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:10,913 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 05:02:10,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:02:10,913 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:10,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1100064415, now seen corresponding path program 1 times [2024-11-28 05:02:10,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:10,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829410190] [2024-11-28 05:02:10,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:10,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:11,483 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 05:02:11,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:11,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829410190] [2024-11-28 05:02:11,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829410190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:11,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:11,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:11,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836679042] [2024-11-28 05:02:11,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:11,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:11,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:11,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:11,486 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 05:02:11,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:11,614 INFO L93 Difference]: Finished difference Result 1340 states and 1923 transitions. [2024-11-28 05:02:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:11,615 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 05:02:11,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:11,620 INFO L225 Difference]: With dead ends: 1340 [2024-11-28 05:02:11,621 INFO L226 Difference]: Without dead ends: 1340 [2024-11-28 05:02:11,621 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 05:02:11,621 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 05:02:11,622 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 05:02:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-28 05:02:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2024-11-28 05:02:11,652 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 05:02:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1923 transitions. [2024-11-28 05:02:11,659 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1923 transitions. Word has length 233 [2024-11-28 05:02:11,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:11,660 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1923 transitions. [2024-11-28 05:02:11,660 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 05:02:11,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1923 transitions. [2024-11-28 05:02:11,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:02:11,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:11,663 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 05:02:11,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:02:11,664 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:11,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1750367123, now seen corresponding path program 1 times [2024-11-28 05:02:11,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:11,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319395559] [2024-11-28 05:02:11,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:11,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:12,220 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 05:02:12,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:12,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319395559] [2024-11-28 05:02:12,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319395559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:12,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:12,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:12,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846502730] [2024-11-28 05:02:12,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:12,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:12,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:12,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:12,226 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 05:02:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:12,319 INFO L93 Difference]: Finished difference Result 1340 states and 1920 transitions. [2024-11-28 05:02:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:12,320 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 05:02:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:12,328 INFO L225 Difference]: With dead ends: 1340 [2024-11-28 05:02:12,328 INFO L226 Difference]: Without dead ends: 1340 [2024-11-28 05:02:12,328 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 05:02:12,329 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:12,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2690 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:02:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-28 05:02:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2024-11-28 05:02:12,369 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 05:02:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1920 transitions. [2024-11-28 05:02:12,378 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1920 transitions. Word has length 233 [2024-11-28 05:02:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:12,379 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1920 transitions. [2024-11-28 05:02:12,379 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 05:02:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1920 transitions. [2024-11-28 05:02:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 05:02:12,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:12,385 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 05:02:12,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:02:12,385 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:12,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash 81123991, now seen corresponding path program 1 times [2024-11-28 05:02:12,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:12,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48187987] [2024-11-28 05:02:12,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:12,813 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 05:02:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48187987] [2024-11-28 05:02:12,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48187987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:12,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:12,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:12,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107329221] [2024-11-28 05:02:12,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:12,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:12,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:12,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:12,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:12,817 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 05:02:12,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:12,953 INFO L93 Difference]: Finished difference Result 1920 states and 2758 transitions. [2024-11-28 05:02:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:12,954 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 05:02:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:12,962 INFO L225 Difference]: With dead ends: 1920 [2024-11-28 05:02:12,963 INFO L226 Difference]: Without dead ends: 1920 [2024-11-28 05:02:12,963 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 05:02:12,964 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 05:02:12,964 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 05:02:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2024-11-28 05:02:13,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1912. [2024-11-28 05:02:13,012 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 05:02:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2750 transitions. [2024-11-28 05:02:13,022 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2750 transitions. Word has length 233 [2024-11-28 05:02:13,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:13,022 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2750 transitions. [2024-11-28 05:02:13,023 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 05:02:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2750 transitions. [2024-11-28 05:02:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-28 05:02:13,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:13,027 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 05:02:13,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:02:13,027 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:13,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash -874209872, now seen corresponding path program 1 times [2024-11-28 05:02:13,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:13,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391576120] [2024-11-28 05:02:13,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:13,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:13,572 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 05:02:13,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:13,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391576120] [2024-11-28 05:02:13,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391576120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:13,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:13,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:02:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055482283] [2024-11-28 05:02:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:13,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:02:13,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:13,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:02:13,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:02:13,575 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 05:02:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:14,564 INFO L93 Difference]: Finished difference Result 2463 states and 3549 transitions. [2024-11-28 05:02:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:14,564 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 05:02:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:14,576 INFO L225 Difference]: With dead ends: 2463 [2024-11-28 05:02:14,577 INFO L226 Difference]: Without dead ends: 2463 [2024-11-28 05:02:14,577 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 05:02:14,578 INFO L435 NwaCegarLoop]: 1434 mSDtfsCounter, 3582 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:14,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3588 Valid, 3019 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:02:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2024-11-28 05:02:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1479. [2024-11-28 05:02:14,627 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 05:02:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2101 transitions. [2024-11-28 05:02:14,635 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2101 transitions. Word has length 248 [2024-11-28 05:02:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:14,636 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2101 transitions. [2024-11-28 05:02:14,636 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 05:02:14,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2101 transitions. [2024-11-28 05:02:14,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-28 05:02:14,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:14,641 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 05:02:14,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:02:14,641 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:14,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:14,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1546871800, now seen corresponding path program 1 times [2024-11-28 05:02:14,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:14,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339878916] [2024-11-28 05:02:14,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:14,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:15,185 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 05:02:15,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:15,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339878916] [2024-11-28 05:02:15,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339878916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:15,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:15,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:15,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964061082] [2024-11-28 05:02:15,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:15,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:15,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:15,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:15,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:15,189 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 05:02:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:15,308 INFO L93 Difference]: Finished difference Result 1436 states and 2023 transitions. [2024-11-28 05:02:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:15,309 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 05:02:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:15,316 INFO L225 Difference]: With dead ends: 1436 [2024-11-28 05:02:15,317 INFO L226 Difference]: Without dead ends: 1436 [2024-11-28 05:02:15,317 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 05:02:15,318 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 05:02:15,318 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 05:02:15,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-28 05:02:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2024-11-28 05:02:15,354 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 05:02:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2023 transitions. [2024-11-28 05:02:15,367 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2023 transitions. Word has length 258 [2024-11-28 05:02:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:15,368 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2023 transitions. [2024-11-28 05:02:15,368 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 05:02:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2023 transitions. [2024-11-28 05:02:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-28 05:02:15,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:15,374 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 05:02:15,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:02:15,374 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:15,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:15,375 INFO L85 PathProgramCache]: Analyzing trace with hash 957007364, now seen corresponding path program 1 times [2024-11-28 05:02:15,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:15,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358794937] [2024-11-28 05:02:15,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:16,754 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 05:02:16,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358794937] [2024-11-28 05:02:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358794937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622395275] [2024-11-28 05:02:16,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:16,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:16,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:16,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:16,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:02:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:17,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:02:17,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:17,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:02:18,168 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 19 treesize of output 11 [2024-11-28 05:02:18,197 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 05:02:18,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:18,659 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 05:02:18,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622395275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:18,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:18,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 12 [2024-11-28 05:02:18,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838126171] [2024-11-28 05:02:18,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:18,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:02:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:18,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:02:18,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:02:18,663 INFO L87 Difference]: Start difference. First operand 1436 states and 2023 transitions. Second operand has 12 states, 12 states have (on average 47.0) internal successors, (564), 12 states have internal predecessors, (564), 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 05:02:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:19,445 INFO L93 Difference]: Finished difference Result 2398 states and 3293 transitions. [2024-11-28 05:02:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:02:19,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 47.0) internal successors, (564), 12 states have internal predecessors, (564), 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 258 [2024-11-28 05:02:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:19,456 INFO L225 Difference]: With dead ends: 2398 [2024-11-28 05:02:19,456 INFO L226 Difference]: Without dead ends: 2398 [2024-11-28 05:02:19,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 504 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:02:19,458 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 2263 mSDsluCounter, 9016 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:19,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 10610 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:02:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-28 05:02:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2102. [2024-11-28 05:02:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 2068 states have (on average 1.375725338491296) internal successors, (2845), 2073 states have internal predecessors, (2845), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 05:02:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2901 transitions. [2024-11-28 05:02:19,527 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2901 transitions. Word has length 258 [2024-11-28 05:02:19,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:19,527 INFO L471 AbstractCegarLoop]: Abstraction has 2102 states and 2901 transitions. [2024-11-28 05:02:19,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 47.0) internal successors, (564), 12 states have internal predecessors, (564), 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 05:02:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2901 transitions. [2024-11-28 05:02:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-28 05:02:19,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:19,540 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:19,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:02:19,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 05:02:19,740 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:19,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:19,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1573842607, now seen corresponding path program 1 times [2024-11-28 05:02:19,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:19,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247269709] [2024-11-28 05:02:19,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:19,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 238 proven. 6 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 05:02:22,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:22,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247269709] [2024-11-28 05:02:22,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247269709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:22,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634082549] [2024-11-28 05:02:22,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:22,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:22,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:22,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:02:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:23,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 2398 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:02:23,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:23,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:02:24,404 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 19 treesize of output 11 [2024-11-28 05:02:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 238 proven. 6 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 05:02:24,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 238 proven. 6 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 05:02:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634082549] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:24,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 13 [2024-11-28 05:02:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398630976] [2024-11-28 05:02:24,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:24,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:02:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:24,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:02:24,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:02:24,895 INFO L87 Difference]: Start difference. First operand 2102 states and 2901 transitions. Second operand has 13 states, 13 states have (on average 50.38461538461539) internal successors, (655), 13 states have internal predecessors, (655), 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 05:02:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:25,605 INFO L93 Difference]: Finished difference Result 2398 states and 3290 transitions. [2024-11-28 05:02:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:02:25,606 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 50.38461538461539) internal successors, (655), 13 states have internal predecessors, (655), 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 492 [2024-11-28 05:02:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:25,615 INFO L225 Difference]: With dead ends: 2398 [2024-11-28 05:02:25,615 INFO L226 Difference]: Without dead ends: 2398 [2024-11-28 05:02:25,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 973 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:02:25,616 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 2343 mSDsluCounter, 8997 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 10617 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:25,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 10617 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:02:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2024-11-28 05:02:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2106. [2024-11-28 05:02:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2072 states have (on average 1.374034749034749) internal successors, (2847), 2077 states have internal predecessors, (2847), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 05:02:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2903 transitions. [2024-11-28 05:02:25,686 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2903 transitions. Word has length 492 [2024-11-28 05:02:25,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:25,687 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 2903 transitions. [2024-11-28 05:02:25,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.38461538461539) internal successors, (655), 13 states have internal predecessors, (655), 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 05:02:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2903 transitions. [2024-11-28 05:02:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-28 05:02:25,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:25,707 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:25,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:02:25,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:25,911 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1978306522, now seen corresponding path program 1 times [2024-11-28 05:02:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:25,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528760796] [2024-11-28 05:02:25,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:25,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:02:32,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528760796] [2024-11-28 05:02:32,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528760796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227408353] [2024-11-28 05:02:32,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:32,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:32,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:32,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:32,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:02:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:33,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:02:33,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:33,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:02:34,271 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 19 treesize of output 11 [2024-11-28 05:02:34,564 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 19 treesize of output 11 [2024-11-28 05:02:34,856 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 19 treesize of output 11 [2024-11-28 05:02:35,154 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 19 treesize of output 11 [2024-11-28 05:02:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:02:35,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:02:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227408353] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:36,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:36,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 24 [2024-11-28 05:02:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487251291] [2024-11-28 05:02:36,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:36,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 05:02:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:36,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 05:02:36,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:02:36,459 INFO L87 Difference]: Start difference. First operand 2106 states and 2903 transitions. Second operand has 24 states, 24 states have (on average 79.375) internal successors, (1905), 24 states have internal predecessors, (1905), 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 05:02:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:38,156 INFO L93 Difference]: Finished difference Result 4186 states and 5654 transitions. [2024-11-28 05:02:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 05:02:38,158 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 79.375) internal successors, (1905), 24 states have internal predecessors, (1905), 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 705 [2024-11-28 05:02:38,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:38,178 INFO L225 Difference]: With dead ends: 4186 [2024-11-28 05:02:38,179 INFO L226 Difference]: Without dead ends: 4186 [2024-11-28 05:02:38,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1433 GetRequests, 1395 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=738, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:02:38,180 INFO L435 NwaCegarLoop]: 2743 mSDtfsCounter, 7437 mSDsluCounter, 29054 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7476 SdHoareTripleChecker+Valid, 31797 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:38,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7476 Valid, 31797 Invalid, 1138 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:02:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2024-11-28 05:02:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3890. [2024-11-28 05:02:38,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3832 states have (on average 1.3460334029227556) internal successors, (5158), 3837 states have internal predecessors, (5158), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:02:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5262 transitions. [2024-11-28 05:02:38,269 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5262 transitions. Word has length 705 [2024-11-28 05:02:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:38,270 INFO L471 AbstractCegarLoop]: Abstraction has 3890 states and 5262 transitions. [2024-11-28 05:02:38,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 79.375) internal successors, (1905), 24 states have internal predecessors, (1905), 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 05:02:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5262 transitions. [2024-11-28 05:02:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1174 [2024-11-28 05:02:38,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:38,325 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 05:02:38,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:02:38,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:38,529 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:38,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:38,531 INFO L85 PathProgramCache]: Analyzing trace with hash -362660752, now seen corresponding path program 1 times [2024-11-28 05:02:38,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:38,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554448339] [2024-11-28 05:02:38,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:38,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3956 backedges. 1876 proven. 906 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2024-11-28 05:02:47,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554448339] [2024-11-28 05:02:47,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554448339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139575337] [2024-11-28 05:02:47,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:47,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:47,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:47,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:02:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:49,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 5638 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:02:49,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:49,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:02:50,416 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 19 treesize of output 11 [2024-11-28 05:02:50,686 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 19 treesize of output 11 [2024-11-28 05:02:50,937 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 19 treesize of output 11 [2024-11-28 05:02:51,170 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 19 treesize of output 11 [2024-11-28 05:02:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3956 backedges. 1876 proven. 906 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2024-11-28 05:02:51,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3956 backedges. 1876 proven. 906 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2024-11-28 05:02:52,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139575337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:52,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:52,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 25 [2024-11-28 05:02:52,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105293356] [2024-11-28 05:02:52,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:52,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 05:02:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:52,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 05:02:52,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=414, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:02:52,269 INFO L87 Difference]: Start difference. First operand 3890 states and 5262 transitions. Second operand has 25 states, 25 states have (on average 79.84) internal successors, (1996), 25 states have internal predecessors, (1996), 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 05:02:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:53,455 INFO L93 Difference]: Finished difference Result 4186 states and 5648 transitions. [2024-11-28 05:02:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 05:02:53,456 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 79.84) internal successors, (1996), 25 states have internal predecessors, (1996), 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 1173 [2024-11-28 05:02:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:53,481 INFO L225 Difference]: With dead ends: 4186 [2024-11-28 05:02:53,481 INFO L226 Difference]: Without dead ends: 4186 [2024-11-28 05:02:53,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2376 GetRequests, 2332 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 05:02:53,482 INFO L435 NwaCegarLoop]: 2766 mSDtfsCounter, 5610 mSDsluCounter, 26802 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5648 SdHoareTripleChecker+Valid, 29568 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:53,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5648 Valid, 29568 Invalid, 878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:02:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2024-11-28 05:02:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3894. [2024-11-28 05:02:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3836 states have (on average 1.3443691345151199) internal successors, (5157), 3841 states have internal predecessors, (5157), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:02:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5261 transitions. [2024-11-28 05:02:53,561 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5261 transitions. Word has length 1173 [2024-11-28 05:02:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:53,566 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5261 transitions. [2024-11-28 05:02:53,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 79.84) internal successors, (1996), 25 states have internal predecessors, (1996), 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 05:02:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5261 transitions. [2024-11-28 05:02:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1600 [2024-11-28 05:02:53,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:53,590 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:53,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:02:53,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 05:02:53,791 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:53,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash 884058778, now seen corresponding path program 2 times [2024-11-28 05:02:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:53,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962222869] [2024-11-28 05:02:53,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:02:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:54,493 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:02:54,493 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6713 trivial. 0 not checked. [2024-11-28 05:02:54,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:54,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962222869] [2024-11-28 05:02:54,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962222869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:54,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:54,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:02:54,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337293532] [2024-11-28 05:02:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:54,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:02:54,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:54,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:02:54,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:54,689 INFO L87 Difference]: Start difference. First operand 3894 states and 5261 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 05:02:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:55,176 INFO L93 Difference]: Finished difference Result 3935 states and 5317 transitions. [2024-11-28 05:02:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:02:55,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 1599 [2024-11-28 05:02:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:55,195 INFO L225 Difference]: With dead ends: 3935 [2024-11-28 05:02:55,195 INFO L226 Difference]: Without dead ends: 3935 [2024-11-28 05:02:55,195 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 05:02:55,197 INFO L435 NwaCegarLoop]: 1279 mSDtfsCounter, 82 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 6125 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:55,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 6125 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:02:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2024-11-28 05:02:55,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3896. [2024-11-28 05:02:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3838 states have (on average 1.3441896821261075) internal successors, (5159), 3843 states have internal predecessors, (5159), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:02:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5263 transitions. [2024-11-28 05:02:55,282 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5263 transitions. Word has length 1599 [2024-11-28 05:02:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:55,285 INFO L471 AbstractCegarLoop]: Abstraction has 3896 states and 5263 transitions. [2024-11-28 05:02:55,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 05:02:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5263 transitions. [2024-11-28 05:02:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1601 [2024-11-28 05:02:55,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:55,325 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:55,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:02:55,326 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:55,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1103075076, now seen corresponding path program 1 times [2024-11-28 05:02:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:55,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416055812] [2024-11-28 05:02:55,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:55,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6713 trivial. 0 not checked. [2024-11-28 05:03:01,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:01,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416055812] [2024-11-28 05:03:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416055812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:01,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:03:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69396556] [2024-11-28 05:03:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:01,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:03:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:01,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:03:01,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:03:01,600 INFO L87 Difference]: Start difference. First operand 3896 states and 5263 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 05:03:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:02,024 INFO L93 Difference]: Finished difference Result 3907 states and 5275 transitions. [2024-11-28 05:03:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:03:02,025 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 1600 [2024-11-28 05:03:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:02,036 INFO L225 Difference]: With dead ends: 3907 [2024-11-28 05:03:02,036 INFO L226 Difference]: Without dead ends: 3907 [2024-11-28 05:03:02,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:03:02,036 INFO L435 NwaCegarLoop]: 1268 mSDtfsCounter, 21 mSDsluCounter, 5930 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:02,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7198 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:03:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2024-11-28 05:03:02,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3900. [2024-11-28 05:03:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3900 states, 3842 states have (on average 1.3440916189484644) internal successors, (5164), 3847 states have internal predecessors, (5164), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:03:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 5268 transitions. [2024-11-28 05:03:02,113 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 5268 transitions. Word has length 1600 [2024-11-28 05:03:02,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:02,116 INFO L471 AbstractCegarLoop]: Abstraction has 3900 states and 5268 transitions. [2024-11-28 05:03:02,116 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 05:03:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 5268 transitions. [2024-11-28 05:03:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1602 [2024-11-28 05:03:02,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:02,162 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:02,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:03:02,163 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:03:02,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2041855890, now seen corresponding path program 1 times [2024-11-28 05:03:02,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144570968] [2024-11-28 05:03:02,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6713 trivial. 0 not checked. [2024-11-28 05:03:08,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:08,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144570968] [2024-11-28 05:03:08,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144570968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:08,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:08,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:03:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521385249] [2024-11-28 05:03:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:08,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:03:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:08,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:03:08,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:03:08,981 INFO L87 Difference]: Start difference. First operand 3900 states and 5268 transitions. Second operand has 9 states, 9 states have (on average 27.333333333333332) internal successors, (246), 9 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 05:03:09,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:09,521 INFO L93 Difference]: Finished difference Result 3911 states and 5281 transitions. [2024-11-28 05:03:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:03:09,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.333333333333332) internal successors, (246), 9 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 1601 [2024-11-28 05:03:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:09,531 INFO L225 Difference]: With dead ends: 3911 [2024-11-28 05:03:09,531 INFO L226 Difference]: Without dead ends: 3911 [2024-11-28 05:03:09,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:03:09,531 INFO L435 NwaCegarLoop]: 1263 mSDtfsCounter, 32 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 9681 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:09,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 9681 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:03:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2024-11-28 05:03:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3908. [2024-11-28 05:03:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 3850 states have (on average 1.3436363636363637) internal successors, (5173), 3855 states have internal predecessors, (5173), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:03:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5277 transitions. [2024-11-28 05:03:09,584 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5277 transitions. Word has length 1601 [2024-11-28 05:03:09,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:09,585 INFO L471 AbstractCegarLoop]: Abstraction has 3908 states and 5277 transitions. [2024-11-28 05:03:09,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.333333333333332) internal successors, (246), 9 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 05:03:09,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5277 transitions. [2024-11-28 05:03:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1603 [2024-11-28 05:03:09,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:09,608 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:09,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:03:09,609 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:03:09,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash -722034011, now seen corresponding path program 1 times [2024-11-28 05:03:09,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:09,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596276162] [2024-11-28 05:03:09,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 1320 proven. 1 refuted. 0 times theorem prover too weak. 5392 trivial. 0 not checked. [2024-11-28 05:03:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596276162] [2024-11-28 05:03:16,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596276162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172872620] [2024-11-28 05:03:16,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:16,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:16,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:16,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:16,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:03:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:19,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 7558 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:03:19,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:19,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:03:19,627 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 19 treesize of output 11 [2024-11-28 05:03:19,855 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 19 treesize of output 11 [2024-11-28 05:03:20,067 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 19 treesize of output 11 [2024-11-28 05:03:20,293 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 19 treesize of output 11 [2024-11-28 05:03:20,509 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 19 treesize of output 11 [2024-11-28 05:03:20,810 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 19 treesize of output 11 [2024-11-28 05:03:21,049 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 19 treesize of output 11 [2024-11-28 05:03:21,291 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 19 treesize of output 11 [2024-11-28 05:03:21,539 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 19 treesize of output 11 [2024-11-28 05:03:21,805 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 19 treesize of output 11 [2024-11-28 05:03:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 0 proven. 6689 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:03:21,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6713 backedges. 0 proven. 6689 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:03:24,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172872620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:03:24,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:03:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 14] total 31 [2024-11-28 05:03:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771887655] [2024-11-28 05:03:24,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:24,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 05:03:24,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:24,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 05:03:24,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=649, Unknown=0, NotChecked=0, Total=930 [2024-11-28 05:03:24,437 INFO L87 Difference]: Start difference. First operand 3908 states and 5277 transitions. Second operand has 31 states, 31 states have (on average 109.7741935483871) internal successors, (3403), 31 states have internal predecessors, (3403), 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 05:03:27,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:27,819 INFO L93 Difference]: Finished difference Result 6237 states and 8349 transitions. [2024-11-28 05:03:27,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-28 05:03:27,820 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 109.7741935483871) internal successors, (3403), 31 states have internal predecessors, (3403), 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 1602 [2024-11-28 05:03:27,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:27,834 INFO L225 Difference]: With dead ends: 6237 [2024-11-28 05:03:27,834 INFO L226 Difference]: Without dead ends: 6237 [2024-11-28 05:03:27,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3256 GetRequests, 3174 SyntacticMatches, 7 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1314, Invalid=4538, Unknown=0, NotChecked=0, Total=5852 [2024-11-28 05:03:27,836 INFO L435 NwaCegarLoop]: 4843 mSDtfsCounter, 13328 mSDsluCounter, 59171 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13410 SdHoareTripleChecker+Valid, 64014 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:27,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13410 Valid, 64014 Invalid, 2146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:03:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2024-11-28 05:03:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 6086. [2024-11-28 05:03:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 5988 states have (on average 1.3301603206412826) internal successors, (7965), 5993 states have internal predecessors, (7965), 92 states have call successors, (92), 4 states have call predecessors, (92), 4 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 05:03:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 8149 transitions. [2024-11-28 05:03:27,909 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 8149 transitions. Word has length 1602 [2024-11-28 05:03:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:27,910 INFO L471 AbstractCegarLoop]: Abstraction has 6086 states and 8149 transitions. [2024-11-28 05:03:27,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 109.7741935483871) internal successors, (3403), 31 states have internal predecessors, (3403), 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 05:03:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 8149 transitions. [2024-11-28 05:03:27,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2539 [2024-11-28 05:03:27,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:27,962 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 05:03:27,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:03:28,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:28,163 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:03:28,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1211514631, now seen corresponding path program 1 times [2024-11-28 05:03:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:28,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042286651] [2024-11-28 05:03:28,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21221 backedges. 0 proven. 21197 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:05:01,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042286651] [2024-11-28 05:05:01,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042286651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82908890] [2024-11-28 05:05:01,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:01,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:01,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:01,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:01,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:05:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:06,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 12118 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 05:05:06,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:06,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:05:06,975 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 19 treesize of output 11 [2024-11-28 05:05:07,236 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 19 treesize of output 11 [2024-11-28 05:05:07,494 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 19 treesize of output 11 [2024-11-28 05:05:07,720 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 19 treesize of output 11 [2024-11-28 05:05:07,944 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 19 treesize of output 11 [2024-11-28 05:05:08,173 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 19 treesize of output 11 [2024-11-28 05:05:08,399 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 19 treesize of output 11 [2024-11-28 05:05:08,651 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 19 treesize of output 11 [2024-11-28 05:05:08,880 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 19 treesize of output 11 [2024-11-28 05:05:09,172 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 19 treesize of output 11 [2024-11-28 05:05:09,299 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 19 treesize of output 11 [2024-11-28 05:05:09,427 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 19 treesize of output 11 [2024-11-28 05:05:09,563 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 19 treesize of output 11 [2024-11-28 05:05:09,695 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 19 treesize of output 11 [2024-11-28 05:05:09,829 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 19 treesize of output 11 [2024-11-28 05:05:09,962 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 19 treesize of output 11 [2024-11-28 05:05:10,100 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 19 treesize of output 11 [2024-11-28 05:05:10,230 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 19 treesize of output 11 [2024-11-28 05:05:10,371 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 19 treesize of output 11 [2024-11-28 05:05:10,518 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 19 treesize of output 11 [2024-11-28 05:05:10,663 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 19 treesize of output 11 [2024-11-28 05:05:10,808 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 19 treesize of output 11 [2024-11-28 05:05:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21221 backedges. 0 proven. 21197 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:05:10,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 21221 backedges. 0 proven. 21197 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:05:15,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82908890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:05:15,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:05:15,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 27, 26] total 96 [2024-11-28 05:05:15,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309733274] [2024-11-28 05:05:15,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:15,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-28 05:05:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:15,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-28 05:05:15,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3089, Invalid=6031, Unknown=0, NotChecked=0, Total=9120 [2024-11-28 05:05:15,584 INFO L87 Difference]: Start difference. First operand 6086 states and 8149 transitions. Second operand has 96 states, 96 states have (on average 77.0625) internal successors, (7398), 96 states have internal predecessors, (7398), 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 05:05:29,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:29,285 INFO L93 Difference]: Finished difference Result 72081 states and 95218 transitions. [2024-11-28 05:05:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-28 05:05:29,287 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 77.0625) internal successors, (7398), 96 states have internal predecessors, (7398), 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 2538 [2024-11-28 05:05:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:29,436 INFO L225 Difference]: With dead ends: 72081 [2024-11-28 05:05:29,437 INFO L226 Difference]: Without dead ends: 72081 [2024-11-28 05:05:29,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5189 GetRequests, 5043 SyntacticMatches, 7 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8442 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5799, Invalid=13941, Unknown=0, NotChecked=0, Total=19740 [2024-11-28 05:05:29,444 INFO L435 NwaCegarLoop]: 9463 mSDtfsCounter, 35901 mSDsluCounter, 195496 mSDsCounter, 0 mSdLazyCounter, 5560 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36083 SdHoareTripleChecker+Valid, 204959 SdHoareTripleChecker+Invalid, 5773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 5560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:29,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36083 Valid, 204959 Invalid, 5773 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [213 Valid, 5560 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 05:05:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72081 states. [2024-11-28 05:05:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72081 to 12799. [2024-11-28 05:05:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12799 states, 12610 states have (on average 1.32101506740682) internal successors, (16658), 12615 states have internal predecessors, (16658), 183 states have call successors, (183), 4 states have call predecessors, (183), 4 states have return successors, (183), 180 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-28 05:05:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12799 states to 12799 states and 17024 transitions. [2024-11-28 05:05:30,161 INFO L78 Accepts]: Start accepts. Automaton has 12799 states and 17024 transitions. Word has length 2538 [2024-11-28 05:05:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:30,163 INFO L471 AbstractCegarLoop]: Abstraction has 12799 states and 17024 transitions. [2024-11-28 05:05:30,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 77.0625) internal successors, (7398), 96 states have internal predecessors, (7398), 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 05:05:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 12799 states and 17024 transitions. [2024-11-28 05:05:30,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4411 [2024-11-28 05:05:30,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:30,394 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 36, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 05:05:30,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:05:30,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde2be8e-72a7-4bf5-ba82-e98cf82137b4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:30,595 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:05:30,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:30,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1963322975, now seen corresponding path program 2 times [2024-11-28 05:05:30,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:30,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746452838] [2024-11-28 05:05:30,598 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:05:30,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:32,673 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:05:32,673 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:05:46,752 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (div |c_ULTIMATE.start_main_~_hj_j~2#1| 32)) (.cse1 (div |c_ULTIMATE.start_main_~_hj_i~2#1| 4294967296))) (and (= (+ (* (div |c_ULTIMATE.start_main_~_hj_j~2#1| 4294967296) 134217728) |c_ULTIMATE.start_main_#t~bitwise349#1|) .cse0) (<= (* |c_ULTIMATE.start_main_~_hj_i~2#1| 2048) (+ (* .cse1 8796093022208) .cse0)) (<= (+ (* 4385549344 .cse0) (* .cse1 38575699983307271831552) (mod (+ (* 90559487 |c_ULTIMATE.start_main_~_hj_j~2#1|) (* |c_ULTIMATE.start_main_~_hj_i~2#1| 737869814) 4259020262) 4294967296)) (* |c_ULTIMATE.start_main_~_hj_i~2#1| 8981605056512)))) is different from false [2024-11-28 05:05:51,743 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (div |c_ULTIMATE.start_main_~_hj_j~2#1| 32))) (and (<= (mod (+ (* 90582048 .cse0) (* 4294956021 |c_ULTIMATE.start_main_~_hj_j~2#1|) (* 4204396534 |c_ULTIMATE.start_main_~_hf_hashv~0#1|) 4259020262) 4294967296) 0) (= (+ (* (div |c_ULTIMATE.start_main_~_hj_j~2#1| 4294967296) 134217728) |c_ULTIMATE.start_main_~_hf_hashv~0#1|) .cse0))) is different from false [2024-11-28 05:05:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 83933 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83933 trivial. 0 not checked. [2024-11-28 05:05:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:52,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746452838] [2024-11-28 05:05:52,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746452838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:52,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:52,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:05:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545513045] [2024-11-28 05:05:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:52,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:05:52,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:52,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:05:52,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=183, Unknown=2, NotChecked=54, Total=272 [2024-11-28 05:05:52,237 INFO L87 Difference]: Start difference. First operand 12799 states and 17024 transitions. Second operand has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 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 05:05:57,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:01,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:05,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:10,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:14,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:18,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:22,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:26,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:30,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:34,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:38,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:42,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:46,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:50,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:54,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:06:58,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:02,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:06,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:10,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:14,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:18,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:22,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:26,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:30,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:34,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:38,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:42,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:46,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:50,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:54,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:07:58,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:08:00,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:08:03,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:08:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:04,250 INFO L93 Difference]: Finished difference Result 12829 states and 17070 transitions. [2024-11-28 05:08:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:08:04,251 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 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 4410 [2024-11-28 05:08:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:04,278 INFO L225 Difference]: With dead ends: 12829 [2024-11-28 05:08:04,279 INFO L226 Difference]: Without dead ends: 12829 [2024-11-28 05:08:04,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=33, Invalid=183, Unknown=2, NotChecked=54, Total=272 [2024-11-28 05:08:04,281 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 45 mSDsluCounter, 15437 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 1 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 16655 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 321 IncrementalHoareTripleChecker+Unchecked, 131.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:04,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 16655 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 994 Invalid, 31 Unknown, 321 Unchecked, 131.9s Time] [2024-11-28 05:08:04,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states. [2024-11-28 05:08:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12813. [2024-11-28 05:08:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12813 states, 12624 states have (on average 1.3211343472750317) internal successors, (16678), 12629 states have internal predecessors, (16678), 183 states have call successors, (183), 4 states have call predecessors, (183), 4 states have return successors, (183), 180 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-28 05:08:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12813 states to 12813 states and 17044 transitions. [2024-11-28 05:08:04,433 INFO L78 Accepts]: Start accepts. Automaton has 12813 states and 17044 transitions. Word has length 4410 [2024-11-28 05:08:04,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:04,438 INFO L471 AbstractCegarLoop]: Abstraction has 12813 states and 17044 transitions. [2024-11-28 05:08:04,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 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 05:08:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12813 states and 17044 transitions. [2024-11-28 05:08:04,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4411 [2024-11-28 05:08:04,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:04,686 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 36, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 05:08:04,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:08:04,686 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:08:04,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash -875030531, now seen corresponding path program 1 times [2024-11-28 05:08:04,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:04,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699218486] [2024-11-28 05:08:04,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:04,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 83933 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83933 trivial. 0 not checked. [2024-11-28 05:08:32,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:32,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699218486] [2024-11-28 05:08:32,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699218486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:32,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:32,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:08:32,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001264965] [2024-11-28 05:08:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:32,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:08:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:32,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:08:32,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:08:32,346 INFO L87 Difference]: Start difference. First operand 12813 states and 17044 transitions. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 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 05:08:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:33,008 INFO L93 Difference]: Finished difference Result 12822 states and 17053 transitions. [2024-11-28 05:08:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:08:33,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 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 4410 [2024-11-28 05:08:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:33,040 INFO L225 Difference]: With dead ends: 12822 [2024-11-28 05:08:33,040 INFO L226 Difference]: Without dead ends: 12822 [2024-11-28 05:08:33,040 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 05:08:33,049 INFO L435 NwaCegarLoop]: 1272 mSDtfsCounter, 16 mSDsluCounter, 4781 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6053 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:33,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6053 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:08:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12822 states. [2024-11-28 05:08:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12822 to 12816. [2024-11-28 05:08:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12816 states, 12627 states have (on average 1.3210580502098677) internal successors, (16681), 12632 states have internal predecessors, (16681), 183 states have call successors, (183), 4 states have call predecessors, (183), 4 states have return successors, (183), 180 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-28 05:08:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12816 states to 12816 states and 17047 transitions. [2024-11-28 05:08:33,445 INFO L78 Accepts]: Start accepts. Automaton has 12816 states and 17047 transitions. Word has length 4410 [2024-11-28 05:08:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:33,452 INFO L471 AbstractCegarLoop]: Abstraction has 12816 states and 17047 transitions. [2024-11-28 05:08:33,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 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 05:08:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 12816 states and 17047 transitions. [2024-11-28 05:08:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4412 [2024-11-28 05:08:33,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:33,803 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 36, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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 05:08:33,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:08:33,803 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:08:33,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:33,815 INFO L85 PathProgramCache]: Analyzing trace with hash 877298765, now seen corresponding path program 1 times [2024-11-28 05:08:33,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:33,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712959587] [2024-11-28 05:08:33,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat