./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.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_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/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_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/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_8363aa1e-7da7-4049-a9b3-248a79161644/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 c3c8655ca5417ded3d08bcdd390cd006a1900a04b131deb295e26f4df52f9db1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:17:41,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:17:41,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:17:41,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:17:41,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:17:41,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:17:41,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:17:41,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:17:41,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:17:41,834 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:17:41,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:17:41,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:17:41,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:17:41,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:17:41,835 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:17:41,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:17:41,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:17:41,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:17:41,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:17:41,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:17:41,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:17:41,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:17:41,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:17:41,837 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:17:41,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:17:41,838 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:17:41,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:17:41,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:17:41,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:17:41,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:17:41,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:17:41,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:17:41,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:17:41,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:17:41,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:17:41,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:17:41,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:17:41,841 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_8363aa1e-7da7-4049-a9b3-248a79161644/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 -> c3c8655ca5417ded3d08bcdd390cd006a1900a04b131deb295e26f4df52f9db1 [2024-11-28 05:17:42,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:17:42,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:17:42,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:17:42,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:17:42,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:17:42,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i [2024-11-28 05:17:45,379 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/data/437549926/fda5f070009e4e7eb5e51d6ed6b86b8b/FLAG8a22bdcd9 [2024-11-28 05:17:46,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:17:46,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i [2024-11-28 05:17:46,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/data/437549926/fda5f070009e4e7eb5e51d6ed6b86b8b/FLAG8a22bdcd9 [2024-11-28 05:17:46,230 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/data/437549926/fda5f070009e4e7eb5e51d6ed6b86b8b [2024-11-28 05:17:46,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:17:46,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:17:46,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:17:46,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:17:46,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:17:46,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:17:46" (1/1) ... [2024-11-28 05:17:46,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744ffdc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:46, skipping insertion in model container [2024-11-28 05:17:46,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:17:46" (1/1) ... [2024-11-28 05:17:46,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:17:46,802 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_8363aa1e-7da7-4049-a9b3-248a79161644/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i[4498,4511] [2024-11-28 05:17:46,812 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_8363aa1e-7da7-4049-a9b3-248a79161644/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i[4558,4571] [2024-11-28 05:17:48,299 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,301 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,301 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,303 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,304 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,323 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,324 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,329 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:48,330 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,487 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,487 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,959 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,960 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,990 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:49,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,004 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,004 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,027 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,028 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,028 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,029 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,029 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,030 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,030 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:17:50,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:17:50,234 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_8363aa1e-7da7-4049-a9b3-248a79161644/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i[4498,4511] [2024-11-28 05:17:50,234 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_8363aa1e-7da7-4049-a9b3-248a79161644/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness_negated.i[4558,4571] [2024-11-28 05:17:50,303 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,303 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,304 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,304 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,305 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,313 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,314 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,315 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,315 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8256] [2024-11-28 05:17:50,478 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,479 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8742-8753] [2024-11-28 05:17:50,679 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,680 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,693 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,696 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,701 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,701 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,714 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,715 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,716 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,716 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,717 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,718 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,718 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 05:17:50,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:17:51,173 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:17:51,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51 WrapperNode [2024-11-28 05:17:51,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:17:51,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:17:51,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:17:51,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:17:51,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,472 INFO L138 Inliner]: procedures = 765, calls = 3572, calls flagged for inlining = 77, calls inlined = 6, statements flattened = 798 [2024-11-28 05:17:51,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:17:51,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:17:51,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:17:51,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:17:51,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,641 INFO L175 MemorySlicer]: Split 615 memory accesses to 9 slices as follows [2, 257, 238, 12, 84, 3, 7, 7, 5]. 42 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 2, 0, 0, 1, 1, 5]. The 499 writes are split as follows [0, 257, 232, 1, 0, 1, 4, 4, 0]. [2024-11-28 05:17:51,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:17:51,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:17:51,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:17:51,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:17:51,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (1/1) ... [2024-11-28 05:17:51,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:17:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:51,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:17:51,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:17:51,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-28 05:17:51,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-28 05:17:51,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:17:51,932 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 05:17:51,933 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 05:17:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 05:17:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 05:17:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:17:51,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 05:17:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:17:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 05:17:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 05:17:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:17:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 05:17:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 05:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 05:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 05:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 05:17:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 05:17:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 05:17:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 05:17:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 05:17:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2024-11-28 05:17:51,943 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 05:17:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 05:17:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 05:17:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 05:17:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 05:17:52,615 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:17:52,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:17:54,382 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 05:18:03,618 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2024-11-28 05:18:03,618 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2024-11-28 05:18:03,745 INFO L? ?]: Removed 391 outVars from TransFormulas that were not future-live. [2024-11-28 05:18:03,745 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:18:03,779 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:18:03,783 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 05:18:03,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:18:03 BoogieIcfgContainer [2024-11-28 05:18:03,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:18:03,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:18:03,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:18:03,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:18:03,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:17:46" (1/3) ... [2024-11-28 05:18:03,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720d8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:18:03, skipping insertion in model container [2024-11-28 05:18:03,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:17:51" (2/3) ... [2024-11-28 05:18:03,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720d8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:18:03, skipping insertion in model container [2024-11-28 05:18:03,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:18:03" (3/3) ... [2024-11-28 05:18:03,801 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_byte_cursor_ptr_harness_negated.i [2024-11-28 05:18:03,825 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:18:03,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_byte_cursor_ptr_harness_negated.i that has 7 procedures, 347 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-28 05:18:03,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:18:03,954 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;@153583d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:18:03,956 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:18:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 327 states have (on average 1.5657492354740061) internal successors, (512), 327 states have internal predecessors, (512), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:18:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 05:18:03,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:03,990 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-28 05:18:03,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:18:03,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash -299286161, now seen corresponding path program 1 times [2024-11-28 05:18:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:04,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172832879] [2024-11-28 05:18:04,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:04,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:20:02,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:02,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172832879] [2024-11-28 05:20:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172832879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:20:02,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972743370] [2024-11-28 05:20:02,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:02,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:02,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:02,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:20:02,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:21:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:53,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:21:53,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:21:53,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:21:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972743370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:21:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:21:53,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786092346] [2024-11-28 05:21:53,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:53,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:21:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:53,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:21:53,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:21:53,481 INFO L87 Difference]: Start difference. First operand has 347 states, 327 states have (on average 1.5657492354740061) internal successors, (512), 327 states have internal predecessors, (512), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:21:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:53,554 INFO L93 Difference]: Finished difference Result 689 states and 1078 transitions. [2024-11-28 05:21:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:21:53,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-28 05:21:53,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:53,570 INFO L225 Difference]: With dead ends: 689 [2024-11-28 05:21:53,571 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 05:21:53,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 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 05:21:53,580 INFO L435 NwaCegarLoop]: 531 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, 531 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 05:21:53,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:21:53,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 05:21:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-28 05:21:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 321 states have (on average 1.560747663551402) internal successors, (501), 322 states have internal predecessors, (501), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 05:21:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 526 transitions. [2024-11-28 05:21:53,673 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 526 transitions. Word has length 72 [2024-11-28 05:21:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:53,673 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 526 transitions. [2024-11-28 05:21:53,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:21:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 526 transitions. [2024-11-28 05:21:53,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 05:21:53,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:53,679 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-28 05:21:53,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:21:53,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:53,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:53,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:53,881 INFO L85 PathProgramCache]: Analyzing trace with hash -343760603, now seen corresponding path program 1 times [2024-11-28 05:21:53,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:53,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82701009] [2024-11-28 05:21:53,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:53,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 05:23:45,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82701009] [2024-11-28 05:23:45,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82701009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610168426] [2024-11-28 05:23:45,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:45,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:45,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:45,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:25:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:39,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:25:39,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 05:25:39,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:25:39,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610168426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:39,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:25:39,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 05:25:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180390923] [2024-11-28 05:25:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:39,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:25:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:39,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:25:39,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:25:39,696 INFO L87 Difference]: Start difference. First operand 341 states and 526 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:25:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:40,642 INFO L93 Difference]: Finished difference Result 665 states and 1034 transitions. [2024-11-28 05:25:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:25:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-28 05:25:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:40,647 INFO L225 Difference]: With dead ends: 665 [2024-11-28 05:25:40,648 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 05:25:40,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 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 05:25:40,650 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 528 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:40,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2001 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:25:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 05:25:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-28 05:25:40,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 323 states have (on average 1.5572755417956656) internal successors, (503), 325 states have internal predecessors, (503), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-28 05:25:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 530 transitions. [2024-11-28 05:25:40,678 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 530 transitions. Word has length 72 [2024-11-28 05:25:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:40,678 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 530 transitions. [2024-11-28 05:25:40,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 05:25:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 530 transitions. [2024-11-28 05:25:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 05:25:40,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:40,682 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-28 05:25:40,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:25:40,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:40,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:40,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1640697974, now seen corresponding path program 1 times [2024-11-28 05:25:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:40,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456833946] [2024-11-28 05:25:40,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:27:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:27:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 05:27:37,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:27:37,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456833946] [2024-11-28 05:27:37,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456833946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:27:37,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822137667] [2024-11-28 05:27:37,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:27:37,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:27:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:27:37,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:27:37,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:29:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:29:31,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 7675 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:29:31,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:29:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 05:29:32,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:29:32,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822137667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:29:32,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:29:32,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 05:29:32,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380581430] [2024-11-28 05:29:32,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:29:32,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:29:32,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:29:32,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:29:32,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:29:32,095 INFO L87 Difference]: Start difference. First operand 344 states and 530 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:29:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:29:32,929 INFO L93 Difference]: Finished difference Result 665 states and 1030 transitions. [2024-11-28 05:29:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:29:32,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-28 05:29:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:29:32,933 INFO L225 Difference]: With dead ends: 665 [2024-11-28 05:29:32,933 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 05:29:32,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:29:32,935 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 528 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:29:32,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2005 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:29:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 05:29:32,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-28 05:29:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 323 states have (on average 1.5572755417956656) internal successors, (503), 325 states have internal predecessors, (503), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 05:29:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 529 transitions. [2024-11-28 05:29:32,969 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 529 transitions. Word has length 74 [2024-11-28 05:29:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:29:32,969 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 529 transitions. [2024-11-28 05:29:32,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 05:29:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 529 transitions. [2024-11-28 05:29:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 05:29:32,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:29:32,976 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:29:33,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:29:33,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8363aa1e-7da7-4049-a9b3-248a79161644/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 05:29:33,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:29:33,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:29:33,177 INFO L85 PathProgramCache]: Analyzing trace with hash -9462289, now seen corresponding path program 2 times [2024-11-28 05:29:33,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:29:33,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355132842] [2024-11-28 05:29:33,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:29:33,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:31:24,149 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:31:24,149 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:31:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:31:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:31:31,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355132842] [2024-11-28 05:31:31,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355132842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:31:31,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:31:31,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:31:31,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280784693] [2024-11-28 05:31:31,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:31:31,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:31:31,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:31:31,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:31:31,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:31:31,597 INFO L87 Difference]: Start difference. First operand 344 states and 529 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 05:31:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:31:32,044 INFO L93 Difference]: Finished difference Result 352 states and 537 transitions. [2024-11-28 05:31:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:31:32,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 76 [2024-11-28 05:31:32,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:31:32,047 INFO L225 Difference]: With dead ends: 352 [2024-11-28 05:31:32,048 INFO L226 Difference]: Without dead ends: 350 [2024-11-28 05:31:32,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:31:32,049 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 3 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:31:32,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3124 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:31:32,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-28 05:31:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2024-11-28 05:31:32,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 326 states have (on average 1.5521472392638036) internal successors, (506), 328 states have internal predecessors, (506), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 05:31:32,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2024-11-28 05:31:32,089 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 76 [2024-11-28 05:31:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:31:32,090 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2024-11-28 05:31:32,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 05:31:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2024-11-28 05:31:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 05:31:32,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:31:32,096 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-28 05:31:32,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:31:32,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:31:32,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:31:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1070600276, now seen corresponding path program 1 times [2024-11-28 05:31:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:31:32,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421722660] [2024-11-28 05:31:32,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:31:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms