./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/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_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3e644a292a4c5d5b549b88d9030b75ad2c804a7dc6b4d8e0c5760a8e3b5148d0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:58:26,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:58:26,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:58:26,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:58:26,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:58:26,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:58:26,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:58:26,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:58:26,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:58:26,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:58:26,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:58:26,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:58:26,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:58:26,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:58:26,904 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:58:26,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:58:26,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:58:26,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:58:26,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:26,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:58:26,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:26,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:58:26,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:58:26,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:58:26,910 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_36d36d13-3e87-44f1-9bfe-31c9d710f75e/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 ! call(reach_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e644a292a4c5d5b549b88d9030b75ad2c804a7dc6b4d8e0c5760a8e3b5148d0 [2024-11-28 03:58:27,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:58:27,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:58:27,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:58:27,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:58:27,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:58:27,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2024-11-28 03:58:30,377 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/data/28abc9899/2138043eda4741a9bbcc2295c2f5ac15/FLAG22d9243c0 [2024-11-28 03:58:31,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:58:31,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2024-11-28 03:58:31,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/data/28abc9899/2138043eda4741a9bbcc2295c2f5ac15/FLAG22d9243c0 [2024-11-28 03:58:31,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/data/28abc9899/2138043eda4741a9bbcc2295c2f5ac15 [2024-11-28 03:58:31,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:58:31,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:58:31,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:31,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:58:31,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:58:31,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:31" (1/1) ... [2024-11-28 03:58:31,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586c6c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:31, skipping insertion in model container [2024-11-28 03:58:31,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:31" (1/1) ... [2024-11-28 03:58:31,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:58:31,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2024-11-28 03:58:31,899 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2024-11-28 03:58:33,008 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,009 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,009 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,011 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,012 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,032 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,033 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,035 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:33,036 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,009 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,013 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:34,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:58:34,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2024-11-28 03:58:34,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2024-11-28 03:58:34,245 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,245 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,245 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,246 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,247 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,257 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,258 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,259 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,259 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-28 03:58:34,501 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,501 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:58:34,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-28 03:58:34,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:34,844 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:58:34,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34 WrapperNode [2024-11-28 03:58:34,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:34,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:34,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:58:34,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:58:34,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:34,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,051 INFO L138 Inliner]: procedures = 680, calls = 2658, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 920 [2024-11-28 03:58:35,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:35,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:58:35,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:58:35,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:58:35,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,190 INFO L175 MemorySlicer]: Split 592 memory accesses to 5 slices as follows [257, 2, 78, 6, 249]. 43 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [0, 2, 16, 0, 11]. The 499 writes are split as follows [257, 0, 7, 2, 233]. [2024-11-28 03:58:35,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,254 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:58:35,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:58:35,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:58:35,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:58:35,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (1/1) ... [2024-11-28 03:58:35,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:35,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:35,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:58:35,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-28 03:58:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-28 03:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:58:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:58:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-28 03:58:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-28 03:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-28 03:58:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-28 03:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-28 03:58:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-28 03:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:58:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:58:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 03:58:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:58:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-28 03:58:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-28 03:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-28 03:58:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:58:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 03:58:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-11-28 03:58:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-11-28 03:58:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:58:35,793 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:58:35,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:58:45,396 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-28 03:58:45,396 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:58:45,415 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:58:45,417 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:58:45,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:45 BoogieIcfgContainer [2024-11-28 03:58:45,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:58:45,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:58:45,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:58:45,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:58:45,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:58:31" (1/3) ... [2024-11-28 03:58:45,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56127013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:45, skipping insertion in model container [2024-11-28 03:58:45,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:34" (2/3) ... [2024-11-28 03:58:45,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56127013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:45, skipping insertion in model container [2024-11-28 03:58:45,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:45" (3/3) ... [2024-11-28 03:58:45,431 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness.i [2024-11-28 03:58:45,450 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:58:45,455 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_from_whole_buffer_harness.i that has 16 procedures, 175 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:58:45,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:58:45,531 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=LoopHeads, 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;@61196fb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:58:45,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:58:45,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 105 states have (on average 1.2190476190476192) internal successors, (128), 107 states have internal predecessors, (128), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:58:45,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:58:45,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:45,552 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:45,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:45,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash -710663743, now seen corresponding path program 1 times [2024-11-28 03:58:45,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:45,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237532678] [2024-11-28 03:58:45,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:45,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-28 04:00:14,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:14,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237532678] [2024-11-28 04:00:14,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237532678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961569301] [2024-11-28 04:00:14,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:14,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:14,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:14,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:01:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:46,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 8080 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:01:46,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-28 04:01:46,077 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:01:46,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961569301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:46,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:46,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:01:46,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096204415] [2024-11-28 04:01:46,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:46,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:01:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:46,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:01:46,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:01:46,117 INFO L87 Difference]: Start difference. First operand has 175 states, 105 states have (on average 1.2190476190476192) internal successors, (128), 107 states have internal predecessors, (128), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-28 04:01:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:46,190 INFO L93 Difference]: Finished difference Result 346 states and 501 transitions. [2024-11-28 04:01:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:01:46,193 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 156 [2024-11-28 04:01:46,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:46,207 INFO L225 Difference]: With dead ends: 346 [2024-11-28 04:01:46,210 INFO L226 Difference]: Without dead ends: 170 [2024-11-28 04:01:46,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 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 04:01:46,222 INFO L435 NwaCegarLoop]: 231 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, 231 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 04:01:46,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:01:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-28 04:01:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-28 04:01:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 101 states have (on average 1.198019801980198) internal successors, (121), 103 states have internal predecessors, (121), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:01:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 226 transitions. [2024-11-28 04:01:46,286 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 226 transitions. Word has length 156 [2024-11-28 04:01:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:46,292 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 226 transitions. [2024-11-28 04:01:46,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-28 04:01:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 226 transitions. [2024-11-28 04:01:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:01:46,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:46,301 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:46,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:01:46,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:01:46,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:46,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:46,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1409630713, now seen corresponding path program 1 times [2024-11-28 04:01:46,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:46,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331850287] [2024-11-28 04:01:46,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:46,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-28 04:03:15,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:15,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331850287] [2024-11-28 04:03:15,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331850287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:15,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076111521] [2024-11-28 04:03:15,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:15,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:15,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:15,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:15,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:04:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:48,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 8080 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:04:48,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 04:04:49,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076111521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:49,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:49,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:04:49,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935155581] [2024-11-28 04:04:49,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:49,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:04:49,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:49,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:04:49,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:49,021 INFO L87 Difference]: Start difference. First operand 170 states and 226 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:04:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:50,267 INFO L93 Difference]: Finished difference Result 336 states and 452 transitions. [2024-11-28 04:04:50,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:04:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 156 [2024-11-28 04:04:50,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:50,273 INFO L225 Difference]: With dead ends: 336 [2024-11-28 04:04:50,273 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 04:04:50,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:50,275 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 223 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:50,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 515 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:04:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 04:04:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-28 04:04:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1941747572815533) internal successors, (123), 106 states have internal predecessors, (123), 53 states have call successors, (53), 15 states have call predecessors, (53), 16 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-28 04:04:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 235 transitions. [2024-11-28 04:04:50,300 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 235 transitions. Word has length 156 [2024-11-28 04:04:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:50,300 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 235 transitions. [2024-11-28 04:04:50,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 04:04:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 235 transitions. [2024-11-28 04:04:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:04:50,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:50,304 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:50,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:50,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 04:04:50,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:50,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:50,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1309673106, now seen corresponding path program 1 times [2024-11-28 04:04:50,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:50,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129995717] [2024-11-28 04:04:50,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:50,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-28 04:06:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:26,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129995717] [2024-11-28 04:06:26,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129995717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:26,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314765736] [2024-11-28 04:06:26,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:26,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:26,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:26,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:26,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:07:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:57,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 8097 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:07:57,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-28 04:07:58,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:58,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314765736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:58,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:58,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:07:58,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328610789] [2024-11-28 04:07:58,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:58,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:07:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:58,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:07:58,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:58,490 INFO L87 Difference]: Start difference. First operand 173 states and 235 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-28 04:07:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:59,715 INFO L93 Difference]: Finished difference Result 308 states and 422 transitions. [2024-11-28 04:07:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:07:59,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 162 [2024-11-28 04:07:59,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:59,719 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:07:59,719 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 04:07:59,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:07:59,721 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 221 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:59,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 519 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:07:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 04:07:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-28 04:07:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1941747572815533) internal successors, (123), 106 states have internal predecessors, (123), 53 states have call successors, (53), 15 states have call predecessors, (53), 16 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2024-11-28 04:07:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 233 transitions. [2024-11-28 04:07:59,740 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 233 transitions. Word has length 162 [2024-11-28 04:07:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:59,740 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 233 transitions. [2024-11-28 04:07:59,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-28 04:07:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 233 transitions. [2024-11-28 04:07:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:07:59,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:59,744 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:59,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:07:59,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 04:07:59,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:59,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1324282521, now seen corresponding path program 2 times [2024-11-28 04:07:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318089925] [2024-11-28 04:07:59,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:25,478 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:09:25,478 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:09:29,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:29,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318089925] [2024-11-28 04:09:29,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318089925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:29,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:29,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:09:29,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308536126] [2024-11-28 04:09:29,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:29,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:09:29,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:29,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:09:29,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:09:29,298 INFO L87 Difference]: Start difference. First operand 173 states and 233 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:09:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:30,255 INFO L93 Difference]: Finished difference Result 294 states and 400 transitions. [2024-11-28 04:09:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:09:30,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 168 [2024-11-28 04:09:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:30,260 INFO L225 Difference]: With dead ends: 294 [2024-11-28 04:09:30,260 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 04:09:30,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:09:30,262 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 40 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:30,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1364 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:09:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 04:09:30,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-28 04:09:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1941747572815533) internal successors, (123), 106 states have internal predecessors, (123), 53 states have call successors, (53), 15 states have call predecessors, (53), 16 states have return successors, (53), 52 states have call predecessors, (53), 52 states have call successors, (53) [2024-11-28 04:09:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 229 transitions. [2024-11-28 04:09:30,287 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 229 transitions. Word has length 168 [2024-11-28 04:09:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:30,288 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 229 transitions. [2024-11-28 04:09:30,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:09:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 229 transitions. [2024-11-28 04:09:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:09:30,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:30,291 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:30,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:09:30,291 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:30,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:30,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1111201830, now seen corresponding path program 3 times [2024-11-28 04:09:30,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:30,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782526822] [2024-11-28 04:09:30,292 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:09:30,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:55,723 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:10:55,723 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-28 04:11:02,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:02,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782526822] [2024-11-28 04:11:02,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782526822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:11:02,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:11:02,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:11:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87756973] [2024-11-28 04:11:02,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:11:02,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:11:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:02,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:11:02,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:11:02,106 INFO L87 Difference]: Start difference. First operand 173 states and 229 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-28 04:11:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:02,603 INFO L93 Difference]: Finished difference Result 185 states and 249 transitions. [2024-11-28 04:11:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:02,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 186 [2024-11-28 04:11:02,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:02,607 INFO L225 Difference]: With dead ends: 185 [2024-11-28 04:11:02,607 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 04:11:02,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:02,608 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 3 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:02,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1543 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:11:02,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 04:11:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2024-11-28 04:11:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 109 states have (on average 1.18348623853211) internal successors, (129), 113 states have internal predecessors, (129), 54 states have call successors, (54), 16 states have call predecessors, (54), 18 states have return successors, (63), 53 states have call predecessors, (63), 53 states have call successors, (63) [2024-11-28 04:11:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 246 transitions. [2024-11-28 04:11:02,629 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 246 transitions. Word has length 186 [2024-11-28 04:11:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:02,630 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 246 transitions. [2024-11-28 04:11:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-28 04:11:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 246 transitions. [2024-11-28 04:11:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:11:02,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:02,633 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:11:02,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:11:02,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2110560610, now seen corresponding path program 1 times [2024-11-28 04:11:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:02,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162709705] [2024-11-28 04:11:02,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 04:12:28,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:28,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162709705] [2024-11-28 04:12:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162709705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140843220] [2024-11-28 04:12:28,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:28,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:28,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36d36d13-3e87-44f1-9bfe-31c9d710f75e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process