./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_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_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1 --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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:42:01,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:42:01,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:42:01,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:42:01,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:42:01,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:42:01,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:42:01,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:42:01,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:42:01,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:42:01,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:42:01,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:42:01,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:42:01,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:42:01,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:42:01,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:42:01,753 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:01,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:42:01,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:01,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:42:01,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:42:01,754 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_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1 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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2024-12-02 12:42:01,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:42:01,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:42:01,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:42:01,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:42:01,970 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:42:01,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-12-02 12:42:04,604 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/data/37d5c17f1/2acdf780969a4e2cb3eed67f05f34bc9/FLAG0ca28cc8a [2024-12-02 12:42:04,983 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:42:04,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2024-12-02 12:42:05,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/data/37d5c17f1/2acdf780969a4e2cb3eed67f05f34bc9/FLAG0ca28cc8a [2024-12-02 12:42:05,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/data/37d5c17f1/2acdf780969a4e2cb3eed67f05f34bc9 [2024-12-02 12:42:05,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:42:05,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:42:05,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:42:05,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:42:05,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:42:05,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:05" (1/1) ... [2024-12-02 12:42:05,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2bbe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:05, skipping insertion in model container [2024-12-02 12:42:05,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:05" (1/1) ... [2024-12-02 12:42:05,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:42:05,449 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-12-02 12:42:05,455 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-12-02 12:42:06,491 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,492 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,492 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,493 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,494 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,509 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,510 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,512 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,512 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,514 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,515 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:06,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,389 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,389 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,411 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,411 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,417 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,417 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,430 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,431 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,433 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,466 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-12-02 12:42:07,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:42:07,495 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:42:07,507 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4494,4507] [2024-12-02 12:42:07,508 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[4554,4567] [2024-12-02 12:42:07,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,618 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,618 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,620 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,621 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,621 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,622 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-12-02 12:42:07,762 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,763 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,770 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,771 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:07,822 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_23831324-a773-4e0a-b726-3961f8de06e2/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i[227989,228002] [2024-12-02 12:42:07,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:42:08,015 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:42:08,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08 WrapperNode [2024-12-02 12:42:08,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:42:08,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:42:08,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:42:08,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:42:08,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,159 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 749 [2024-12-02 12:42:08,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:42:08,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:42:08,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:42:08,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:42:08,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,236 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 40, 2, 1, 2, 45, 13, 238, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 9, 0, 0, 0, 0, 0, 6, 5]. The 246 writes are split as follows [0, 4, 1, 1, 1, 6, 1, 232, 0]. [2024-12-02 12:42:08,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:42:08,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:42:08,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:42:08,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:42:08,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (1/1) ... [2024-12-02 12:42:08,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:08,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:42:08,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:42:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 12:42:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 12:42:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:42:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 12:42:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:42:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-12-02 12:42:08,362 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:42:08,362 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-12-02 12:42:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:42:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:42:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:42:08,363 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:42:08,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 12:42:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 12:42:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-12-02 12:42:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:42:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-12-02 12:42:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 12:42:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 12:42:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-12-02 12:42:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 12:42:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-12-02 12:42:08,367 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:42:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2024-12-02 12:42:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 12:42:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-12-02 12:42:08,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-12-02 12:42:08,693 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:42:08,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:42:08,774 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:42:08,777 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:42:08,899 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2024-12-02 12:42:08,899 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2024-12-02 12:42:08,899 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2024-12-02 12:42:08,899 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2024-12-02 12:42:14,917 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-12-02 12:42:14,917 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:42:14,931 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:42:14,931 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-02 12:42:14,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:14 BoogieIcfgContainer [2024-12-02 12:42:14,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:42:14,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:42:14,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:42:14,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:42:14,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:42:05" (1/3) ... [2024-12-02 12:42:14,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242eb049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:14, skipping insertion in model container [2024-12-02 12:42:14,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:08" (2/3) ... [2024-12-02 12:42:14,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242eb049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:14, skipping insertion in model container [2024-12-02 12:42:14,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:14" (3/3) ... [2024-12-02 12:42:14,939 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2024-12-02 12:42:14,951 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:42:14,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 255 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2024-12-02 12:42:15,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:42:15,022 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;@4a95ad66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:42:15,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:42:15,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 12:42:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 12:42:15,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:42:15,042 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:42:15,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:42:15,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:42:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1747756472, now seen corresponding path program 1 times [2024-12-02 12:42:15,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:42:15,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928174109] [2024-12-02 12:42:15,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:42:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-12-02 12:42:20,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928174109] [2024-12-02 12:42:20,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928174109] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:42:20,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246824373] [2024-12-02 12:42:20,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:20,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:42:20,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:42:20,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:42:20,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:42:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:26,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:42:26,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:42:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-12-02 12:42:26,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:42:26,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246824373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:26,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:42:26,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:42:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857143904] [2024-12-02 12:42:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:26,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:42:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:26,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:42:26,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:42:26,371 INFO L87 Difference]: Start difference. First operand has 223 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 149 states have internal predecessors, (193), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 12:42:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:42:26,416 INFO L93 Difference]: Finished difference Result 441 states and 636 transitions. [2024-12-02 12:42:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:42:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-12-02 12:42:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:42:26,427 INFO L225 Difference]: With dead ends: 441 [2024-12-02 12:42:26,427 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 12:42:26,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:42:26,434 INFO L435 NwaCegarLoop]: 292 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, 292 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 [2024-12-02 12:42:26,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:42:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 12:42:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-12-02 12:42:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 12:42:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2024-12-02 12:42:26,486 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 203 [2024-12-02 12:42:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:42:26,487 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2024-12-02 12:42:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 12:42:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2024-12-02 12:42:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 12:42:26,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:42:26,492 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:42:26,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:42:26,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:42:26,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:42:26,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:42:26,694 INFO L85 PathProgramCache]: Analyzing trace with hash 898608514, now seen corresponding path program 1 times [2024-12-02 12:42:26,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:42:26,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046442085] [2024-12-02 12:42:26,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:26,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:42:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-12-02 12:42:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:32,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046442085] [2024-12-02 12:42:32,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046442085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:32,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:42:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:42:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781537114] [2024-12-02 12:42:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:32,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:42:32,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:32,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:42:32,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:42:32,647 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 12:42:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:42:32,830 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2024-12-02 12:42:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:42:32,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2024-12-02 12:42:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:42:32,834 INFO L225 Difference]: With dead ends: 399 [2024-12-02 12:42:32,834 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 12:42:32,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:42:32,836 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:42:32,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1132 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:42:32,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 12:42:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-12-02 12:42:32,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2024-12-02 12:42:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 292 transitions. [2024-12-02 12:42:32,858 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 292 transitions. Word has length 203 [2024-12-02 12:42:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:42:32,859 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 292 transitions. [2024-12-02 12:42:32,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 12:42:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 292 transitions. [2024-12-02 12:42:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 12:42:32,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:42:32,863 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:42:32,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:42:32,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:42:32,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:42:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1706772534, now seen corresponding path program 1 times [2024-12-02 12:42:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:42:32,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644228951] [2024-12-02 12:42:32,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:32,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:42:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-12-02 12:42:41,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:41,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644228951] [2024-12-02 12:42:41,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644228951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:41,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:42:41,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:42:41,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206040469] [2024-12-02 12:42:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:41,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:42:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:41,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:42:41,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:42:41,056 INFO L87 Difference]: Start difference. First operand 223 states and 292 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-12-02 12:42:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:42:42,523 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2024-12-02 12:42:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:42:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2024-12-02 12:42:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:42:42,526 INFO L225 Difference]: With dead ends: 393 [2024-12-02 12:42:42,527 INFO L226 Difference]: Without dead ends: 231 [2024-12-02 12:42:42,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:42:42,528 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 22 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:42:42,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1816 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:42:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-12-02 12:42:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-12-02 12:42:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 152 states have (on average 1.243421052631579) internal successors, (189), 154 states have internal predecessors, (189), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2024-12-02 12:42:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2024-12-02 12:42:42,544 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 209 [2024-12-02 12:42:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:42:42,544 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2024-12-02 12:42:42,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-12-02 12:42:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2024-12-02 12:42:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 12:42:42,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:42:42,549 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:42:42,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:42:42,550 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:42:42,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:42:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1166343028, now seen corresponding path program 1 times [2024-12-02 12:42:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:42:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340063651] [2024-12-02 12:42:42,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:42,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:42:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2024-12-02 12:42:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340063651] [2024-12-02 12:42:47,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340063651] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:47,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:42:47,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:42:47,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282071364] [2024-12-02 12:42:47,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:47,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:42:47,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:47,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:42:47,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:42:47,947 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 12:42:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:42:48,140 INFO L93 Difference]: Finished difference Result 400 states and 530 transitions. [2024-12-02 12:42:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:42:48,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2024-12-02 12:42:48,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:42:48,144 INFO L225 Difference]: With dead ends: 400 [2024-12-02 12:42:48,144 INFO L226 Difference]: Without dead ends: 233 [2024-12-02 12:42:48,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:42:48,145 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 21 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:42:48,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 805 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:42:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-12-02 12:42:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2024-12-02 12:42:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 153 states have (on average 1.2418300653594772) internal successors, (190), 155 states have internal predecessors, (190), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2024-12-02 12:42:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2024-12-02 12:42:48,162 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 209 [2024-12-02 12:42:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:42:48,163 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2024-12-02 12:42:48,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 12:42:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2024-12-02 12:42:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-02 12:42:48,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:42:48,166 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:42:48,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:42:48,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:42:48,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:42:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash 209901495, now seen corresponding path program 1 times [2024-12-02 12:42:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:42:48,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741616715] [2024-12-02 12:42:48,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:42:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-12-02 12:42:53,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:53,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741616715] [2024-12-02 12:42:53,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741616715] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:42:53,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682665320] [2024-12-02 12:42:53,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:42:53,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:42:53,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:42:53,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:42:53,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:42:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:58,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 4576 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 12:42:58,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:42:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-12-02 12:42:59,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:42:59,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682665320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:59,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:42:59,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-12-02 12:42:59,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63773418] [2024-12-02 12:42:59,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:42:59,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:59,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:42:59,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:42:59,842 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:43:01,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:01,281 INFO L93 Difference]: Finished difference Result 409 states and 545 transitions. [2024-12-02 12:43:01,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:43:01,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 215 [2024-12-02 12:43:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:01,284 INFO L225 Difference]: With dead ends: 409 [2024-12-02 12:43:01,284 INFO L226 Difference]: Without dead ends: 240 [2024-12-02 12:43:01,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:43:01,286 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:01,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2072 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 12:43:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-12-02 12:43:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2024-12-02 12:43:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 157 states have internal predecessors, (191), 55 states have call successors, (55), 19 states have call predecessors, (55), 22 states have return successors, (62), 55 states have call predecessors, (62), 54 states have call successors, (62) [2024-12-02 12:43:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 308 transitions. [2024-12-02 12:43:01,296 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 308 transitions. Word has length 215 [2024-12-02 12:43:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:01,296 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 308 transitions. [2024-12-02 12:43:01,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:43:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 308 transitions. [2024-12-02 12:43:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 12:43:01,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:01,298 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:01,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:43:01,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:01,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:01,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1193612132, now seen corresponding path program 1 times [2024-12-02 12:43:01,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:01,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361866706] [2024-12-02 12:43:01,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:01,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-12-02 12:43:10,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361866706] [2024-12-02 12:43:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361866706] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:43:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029639197] [2024-12-02 12:43:10,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:10,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:10,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:43:10,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:43:10,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:43:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:15,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 12:43:15,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:43:16,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:43:22,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:43:22,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 12:43:28,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-12-02 12:43:28,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-12-02 12:43:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 552 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 12:43:28,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:43:30,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-12-02 12:43:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-12-02 12:43:31,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029639197] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:43:31,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:43:31,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 14] total 25 [2024-12-02 12:43:31,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102150058] [2024-12-02 12:43:31,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:43:31,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 12:43:31,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:31,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 12:43:31,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:43:31,509 INFO L87 Difference]: Start difference. First operand 232 states and 308 transitions. Second operand has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) [2024-12-02 12:43:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:44,812 INFO L93 Difference]: Finished difference Result 412 states and 535 transitions. [2024-12-02 12:43:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 12:43:44,813 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) Word has length 222 [2024-12-02 12:43:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:44,815 INFO L225 Difference]: With dead ends: 412 [2024-12-02 12:43:44,815 INFO L226 Difference]: Without dead ends: 284 [2024-12-02 12:43:44,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 404 SyntacticMatches, 30 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 12:43:44,816 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 298 mSDsluCounter, 3806 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:44,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 4060 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2024-12-02 12:43:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-12-02 12:43:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 269. [2024-12-02 12:43:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.2173913043478262) internal successors, (224), 186 states have internal predecessors, (224), 56 states have call successors, (56), 26 states have call predecessors, (56), 28 states have return successors, (59), 56 states have call predecessors, (59), 55 states have call successors, (59) [2024-12-02 12:43:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 339 transitions. [2024-12-02 12:43:44,839 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 339 transitions. Word has length 222 [2024-12-02 12:43:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:44,840 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 339 transitions. [2024-12-02 12:43:44,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.260869565217392) internal successors, (144), 20 states have internal predecessors, (144), 14 states have call successors, (69), 7 states have call predecessors, (69), 6 states have return successors, (65), 13 states have call predecessors, (65), 13 states have call successors, (65) [2024-12-02 12:43:44,840 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 339 transitions. [2024-12-02 12:43:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-12-02 12:43:44,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:44,842 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:44,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:43:45,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:45,043 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:45,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash 493069039, now seen corresponding path program 2 times [2024-12-02 12:43:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:45,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152209084] [2024-12-02 12:43:45,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:43:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:49,935 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:43:49,936 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:43:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-12-02 12:43:55,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:55,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152209084] [2024-12-02 12:43:55,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152209084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:55,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:55,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 12:43:55,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843775048] [2024-12-02 12:43:55,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:55,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:43:55,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:55,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:43:55,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:43:55,223 INFO L87 Difference]: Start difference. First operand 269 states and 339 transitions. Second operand has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-12-02 12:44:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:00,583 INFO L93 Difference]: Finished difference Result 375 states and 479 transitions. [2024-12-02 12:44:00,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:44:00,584 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) Word has length 229 [2024-12-02 12:44:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:00,587 INFO L225 Difference]: With dead ends: 375 [2024-12-02 12:44:00,587 INFO L226 Difference]: Without dead ends: 274 [2024-12-02 12:44:00,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-12-02 12:44:00,588 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 129 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:00,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 3205 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 12:44:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-12-02 12:44:00,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 269. [2024-12-02 12:44:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.2173913043478262) internal successors, (224), 186 states have internal predecessors, (224), 56 states have call successors, (56), 26 states have call predecessors, (56), 28 states have return successors, (57), 56 states have call predecessors, (57), 55 states have call successors, (57) [2024-12-02 12:44:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 337 transitions. [2024-12-02 12:44:00,608 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 337 transitions. Word has length 229 [2024-12-02 12:44:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:00,609 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 337 transitions. [2024-12-02 12:44:00,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 12 states have internal predecessors, (83), 9 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2024-12-02 12:44:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 337 transitions. [2024-12-02 12:44:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-12-02 12:44:00,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:00,612 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:00,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:44:00,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:00,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash 222833826, now seen corresponding path program 1 times [2024-12-02 12:44:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217073120] [2024-12-02 12:44:00,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 33 proven. 23 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2024-12-02 12:44:07,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217073120] [2024-12-02 12:44:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217073120] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:44:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875398252] [2024-12-02 12:44:07,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:07,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:07,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:44:07,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:44:07,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:44:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:13,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 4672 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 12:44:13,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:44:16,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-12-02 12:44:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 283 proven. 41 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-12-02 12:44:16,876 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:44:21,495 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-12-02 12:44:21,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 24 [2024-12-02 12:44:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 64 proven. 12 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-12-02 12:44:22,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875398252] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:44:22,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:44:22,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 16, 12] total 26 [2024-12-02 12:44:22,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327895571] [2024-12-02 12:44:22,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:44:22,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 12:44:22,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:22,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 12:44:22,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2024-12-02 12:44:22,669 INFO L87 Difference]: Start difference. First operand 269 states and 337 transitions. Second operand has 26 states, 21 states have (on average 6.571428571428571) internal successors, (138), 24 states have internal predecessors, (138), 10 states have call successors, (63), 4 states have call predecessors, (63), 10 states have return successors, (60), 8 states have call predecessors, (60), 10 states have call successors, (60) [2024-12-02 12:44:28,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:35,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:42,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:48,726 INFO L93 Difference]: Finished difference Result 624 states and 839 transitions. [2024-12-02 12:44:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 12:44:48,727 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 6.571428571428571) internal successors, (138), 24 states have internal predecessors, (138), 10 states have call successors, (63), 4 states have call predecessors, (63), 10 states have return successors, (60), 8 states have call predecessors, (60), 10 states have call successors, (60) Word has length 236 [2024-12-02 12:44:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:48,730 INFO L225 Difference]: With dead ends: 624 [2024-12-02 12:44:48,730 INFO L226 Difference]: Without dead ends: 474 [2024-12-02 12:44:48,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 451 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 12:44:48,732 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 260 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 77 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:48,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 3130 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1328 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2024-12-02 12:44:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-12-02 12:44:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 456. [2024-12-02 12:44:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 311 states have (on average 1.22508038585209) internal successors, (381), 319 states have internal predecessors, (381), 94 states have call successors, (94), 39 states have call predecessors, (94), 50 states have return successors, (126), 97 states have call predecessors, (126), 92 states have call successors, (126) [2024-12-02 12:44:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 601 transitions. [2024-12-02 12:44:48,814 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 601 transitions. Word has length 236 [2024-12-02 12:44:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:48,814 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 601 transitions. [2024-12-02 12:44:48,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 6.571428571428571) internal successors, (138), 24 states have internal predecessors, (138), 10 states have call successors, (63), 4 states have call predecessors, (63), 10 states have return successors, (60), 8 states have call predecessors, (60), 10 states have call successors, (60) [2024-12-02 12:44:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 601 transitions. [2024-12-02 12:44:48,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-12-02 12:44:48,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:48,818 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:48,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:44:49,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:49,018 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash -600008710, now seen corresponding path program 1 times [2024-12-02 12:44:49,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:49,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657833270] [2024-12-02 12:44:49,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:49,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-12-02 12:44:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:53,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657833270] [2024-12-02 12:44:53,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657833270] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:44:53,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311653302] [2024-12-02 12:44:53,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:53,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:53,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:44:53,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:44:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:44:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:59,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 4734 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:44:59,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:45:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 388 proven. 47 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-12-02 12:45:01,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:45:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-12-02 12:45:04,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311653302] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:45:04,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:45:04,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2024-12-02 12:45:04,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481620076] [2024-12-02 12:45:04,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:45:04,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:45:04,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:45:04,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:45:04,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:45:04,123 INFO L87 Difference]: Start difference. First operand 456 states and 601 transitions. Second operand has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 9 states have call successors, (93), 3 states have call predecessors, (93), 5 states have return successors, (90), 9 states have call predecessors, (90), 9 states have call successors, (90) [2024-12-02 12:45:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:45:04,930 INFO L93 Difference]: Finished difference Result 573 states and 741 transitions. [2024-12-02 12:45:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:45:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 9 states have call successors, (93), 3 states have call predecessors, (93), 5 states have return successors, (90), 9 states have call predecessors, (90), 9 states have call successors, (90) Word has length 250 [2024-12-02 12:45:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:45:04,933 INFO L225 Difference]: With dead ends: 573 [2024-12-02 12:45:04,933 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:45:04,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:45:04,935 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 92 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:45:04,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 665 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:45:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:45:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:45:04,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:45:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:45:04,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2024-12-02 12:45:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:45:04,936 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:45:04,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 9 states have call successors, (93), 3 states have call predecessors, (93), 5 states have return successors, (90), 9 states have call predecessors, (90), 9 states have call successors, (90) [2024-12-02 12:45:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:45:04,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:45:04,939 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:45:04,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:45:05,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 12:45:05,142 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:45:05,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:45:15,273 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:45:15,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:45:15 BoogieIcfgContainer [2024-12-02 12:45:15,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:45:15,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:45:15,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:45:15,283 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:45:15,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:14" (3/4) ... [2024-12-02 12:45:15,285 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure s_remove_entry [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#5 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#4 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#7 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_is_valid [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#6 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#1 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#0 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#3 [2024-12-02 12:45:15,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#2 [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset#8 [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_delete [2024-12-02 12:45:15,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 12:45:15,300 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 151 nodes and edges [2024-12-02 12:45:15,300 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-12-02 12:45:15,301 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-12-02 12:45:15,302 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 12:45:15,303 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 12:45:15,303 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 12:45:15,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 12:45:15,305 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:45:15,777 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:45:15,778 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:45:15,778 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:45:15,779 INFO L158 Benchmark]: Toolchain (without parser) took 190626.67ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 82.7MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 575.5MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,779 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:45:15,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2863.56ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 82.5MB in the beginning and 79.3MB in the end (delta: 3.2MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.39ms. Allocated memory is still 209.7MB. Free memory was 79.3MB in the beginning and 145.9MB in the end (delta: -66.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,780 INFO L158 Benchmark]: Boogie Preprocessor took 148.43ms. Allocated memory is still 209.7MB. Free memory was 145.9MB in the beginning and 125.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,780 INFO L158 Benchmark]: RCFGBuilder took 6622.10ms. Allocated memory is still 209.7MB. Free memory was 125.9MB in the beginning and 84.2MB in the end (delta: 41.7MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,780 INFO L158 Benchmark]: TraceAbstraction took 180348.61ms. Allocated memory was 209.7MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 84.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 357.1MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,781 INFO L158 Benchmark]: Witness Printer took 495.25ms. Allocated memory is still 2.6GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 134.2MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2024-12-02 12:45:15,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2863.56ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 82.5MB in the beginning and 79.3MB in the end (delta: 3.2MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.39ms. Allocated memory is still 209.7MB. Free memory was 79.3MB in the beginning and 145.9MB in the end (delta: -66.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.43ms. Allocated memory is still 209.7MB. Free memory was 145.9MB in the beginning and 125.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 6622.10ms. Allocated memory is still 209.7MB. Free memory was 125.9MB in the beginning and 84.2MB in the end (delta: 41.7MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * TraceAbstraction took 180348.61ms. Allocated memory was 209.7MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 84.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 357.1MB. Max. memory is 16.1GB. * Witness Printer took 495.25ms. Allocated memory is still 2.6GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 134.2MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7558]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 170.2s, OverallIterations: 9, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 49.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 879 SdHoareTripleChecker+Valid, 41.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 822 mSDsluCounter, 17177 SdHoareTripleChecker+Invalid, 40.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14875 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4119 IncrementalHoareTripleChecker+Invalid, 4341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 2302 mSDtfsCounter, 4119 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1944 GetRequests, 1770 SyntacticMatches, 34 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 27.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred in iteration=8, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 52.1s InterpolantComputationTime, 3102 NumberOfCodeBlocks, 3102 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3793 ConstructedInterpolants, 90 QuantifiedInterpolants, 8350 SizeOfPredicates, 30 NumberOfNonLiveVariables, 23138 ConjunctsInSsa, 149 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 11999/12180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9639]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9142]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9640]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 12:45:15,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23831324-a773-4e0a-b726-3961f8de06e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE