./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:33:05,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:33:05,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:33:05,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:33:05,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:33:05,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:33:05,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:33:05,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:33:05,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:33:05,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:33:05,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:33:05,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:33:05,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:33:05,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:33:05,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:33:05,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:33:05,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:33:05,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:33:05,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:33:05,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:33:05,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:33:05,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:33:05,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:33:05,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:33:05,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:33:05,382 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:05,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:33:05,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:05,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:33:05,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:33:05,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:33:05,385 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_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 [2024-11-28 04:33:05,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:33:05,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:33:05,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:33:05,769 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:33:05,769 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:33:05,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2024-11-28 04:33:09,311 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/data/62e15dc33/f69e166bb7894f2193de684d3f94ef3f/FLAGcef0a8014 [2024-11-28 04:33:10,036 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:33:10,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2024-11-28 04:33:10,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/data/62e15dc33/f69e166bb7894f2193de684d3f94ef3f/FLAGcef0a8014 [2024-11-28 04:33:10,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/data/62e15dc33/f69e166bb7894f2193de684d3f94ef3f [2024-11-28 04:33:10,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:33:10,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:33:10,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:10,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:33:10,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:33:10,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:10" (1/1) ... [2024-11-28 04:33:10,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c0ead5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:10, skipping insertion in model container [2024-11-28 04:33:10,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:10" (1/1) ... [2024-11-28 04:33:10,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:33:10,742 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2024-11-28 04:33:10,752 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2024-11-28 04:33:12,197 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,198 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,199 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,200 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,202 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,224 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,225 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,228 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,229 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,232 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,234 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,235 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:12,236 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,667 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,668 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,699 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,700 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,707 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,708 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,723 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,725 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,725 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,725 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,726 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,726 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,727 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,789 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2024-11-28 04:33:13,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:13,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:33:13,838 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2024-11-28 04:33:13,838 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2024-11-28 04:33:13,954 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,955 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,955 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,956 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,956 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,967 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,967 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,970 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,971 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,972 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,972 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,973 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:13,973 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2024-11-28 04:33:14,201 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,201 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,212 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,213 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,216 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,217 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,233 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,233 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,234 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,236 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,236 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,237 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,237 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:33:14,313 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_0fa2e852-3623-4b5f-af8b-623eff66604b/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2024-11-28 04:33:14,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:33:14,716 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:33:14,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14 WrapperNode [2024-11-28 04:33:14,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:33:14,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:14,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:33:14,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:33:14,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:14,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:14,982 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2024-11-28 04:33:14,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:33:14,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:33:14,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:33:14,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:33:14,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:14,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,120 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [2, 238, 2, 34, 8, 2, 1, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 6, 0, 0, 0, 0, 0, 5]. The 241 writes are split as follows [0, 232, 1, 5, 1, 1, 1, 0]. [2024-11-28 04:33:15,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:33:15,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:33:15,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:33:15,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:33:15,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (1/1) ... [2024-11-28 04:33:15,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:33:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:15,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:33:15,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:33:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2024-11-28 04:33:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2024-11-28 04:33:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:33:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:33:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:33:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:33:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:33:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 04:33:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:33:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:33:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-28 04:33:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-28 04:33:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2024-11-28 04:33:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2024-11-28 04:33:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:33:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:33:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-28 04:33:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:33:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:33:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:33:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:33:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 04:33:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:33:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 04:33:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:33:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-28 04:33:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:33:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:33:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:33:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:33:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:33:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:33:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:33:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 04:33:15,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 04:33:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 04:33:15,352 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 04:33:15,354 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:33:15,354 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-28 04:33:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:33:15,355 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-28 04:33:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-28 04:33:15,887 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:33:15,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:33:22,649 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-11-28 04:33:22,649 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:33:22,671 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:33:22,675 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:33:22,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:22 BoogieIcfgContainer [2024-11-28 04:33:22,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:33:22,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:33:22,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:33:22,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:33:22,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:33:10" (1/3) ... [2024-11-28 04:33:22,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abc8458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:33:22, skipping insertion in model container [2024-11-28 04:33:22,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:14" (2/3) ... [2024-11-28 04:33:22,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abc8458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:33:22, skipping insertion in model container [2024-11-28 04:33:22,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:22" (3/3) ... [2024-11-28 04:33:22,689 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness_negated.i [2024-11-28 04:33:22,710 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:33:22,712 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness_negated.i that has 19 procedures, 178 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 04:33:22,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:33:22,825 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;@6bb294d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:33:22,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:33:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 117 states have (on average 1.1965811965811965) internal successors, (140), 118 states have internal predecessors, (140), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 04:33:22,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:33:22,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:22,852 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:33:22,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:22,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1685357161, now seen corresponding path program 1 times [2024-11-28 04:33:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:22,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178167476] [2024-11-28 04:33:22,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:22,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-28 04:33:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:31,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178167476] [2024-11-28 04:33:31,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178167476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:31,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711154663] [2024-11-28 04:33:31,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:31,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:31,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:31,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:33:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:39,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 4358 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:33:39,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:33:39,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:33:39,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711154663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:39,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:39,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:33:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503418946] [2024-11-28 04:33:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:39,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:33:39,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:39,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:33:39,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:33:39,709 INFO L87 Difference]: Start difference. First operand has 178 states, 117 states have (on average 1.1965811965811965) internal successors, (140), 118 states have internal predecessors, (140), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 04:33:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:39,789 INFO L93 Difference]: Finished difference Result 351 states and 464 transitions. [2024-11-28 04:33:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:33:39,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2024-11-28 04:33:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:39,809 INFO L225 Difference]: With dead ends: 351 [2024-11-28 04:33:39,810 INFO L226 Difference]: Without dead ends: 171 [2024-11-28 04:33:39,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:33:39,823 INFO L435 NwaCegarLoop]: 217 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, 217 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:39,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:33:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-28 04:33:39,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-28 04:33:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 111 states have (on average 1.1531531531531531) internal successors, (128), 112 states have internal predecessors, (128), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:33:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 209 transitions. [2024-11-28 04:33:39,913 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 209 transitions. Word has length 141 [2024-11-28 04:33:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:39,917 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 209 transitions. [2024-11-28 04:33:39,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 04:33:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 209 transitions. [2024-11-28 04:33:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:33:39,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:39,926 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:33:39,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:33:40,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:33:40,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:40,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -960540209, now seen corresponding path program 1 times [2024-11-28 04:33:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:40,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278365467] [2024-11-28 04:33:40,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:40,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-28 04:33:48,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:48,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278365467] [2024-11-28 04:33:48,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278365467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:48,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:33:48,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:33:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588676673] [2024-11-28 04:33:48,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:48,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:33:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:48,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:33:48,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:33:48,261 INFO L87 Difference]: Start difference. First operand 171 states and 209 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 04:33:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:48,446 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2024-11-28 04:33:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:33:48,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2024-11-28 04:33:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:48,451 INFO L225 Difference]: With dead ends: 305 [2024-11-28 04:33:48,451 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 04:33:48,453 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 [2024-11-28 04:33:48,454 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 820 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 [2024-11-28 04:33:48,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 820 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:33:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 04:33:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-28 04:33:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 115 states have (on average 1.1478260869565218) internal successors, (132), 116 states have internal predecessors, (132), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:33:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2024-11-28 04:33:48,474 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 141 [2024-11-28 04:33:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:48,475 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2024-11-28 04:33:48,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 04:33:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2024-11-28 04:33:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:33:48,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:48,479 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:33:48,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:33:48,479 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:48,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1219190853, now seen corresponding path program 1 times [2024-11-28 04:33:48,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:48,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354811485] [2024-11-28 04:33:48,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:48,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-28 04:33:59,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354811485] [2024-11-28 04:33:59,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354811485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668110839] [2024-11-28 04:33:59,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:59,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:59,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:59,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:59,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:34:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:06,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:34:06,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 04:34:06,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:06,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668110839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:06,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-28 04:34:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559382902] [2024-11-28 04:34:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:06,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:06,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:06,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:06,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:06,995 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 04:34:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:07,080 INFO L93 Difference]: Finished difference Result 247 states and 297 transitions. [2024-11-28 04:34:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2024-11-28 04:34:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:07,084 INFO L225 Difference]: With dead ends: 247 [2024-11-28 04:34:07,084 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 04:34:07,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:07,086 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:07,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:34:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 04:34:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-28 04:34:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 116 states have (on average 1.146551724137931) internal successors, (133), 117 states have internal predecessors, (133), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:34:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2024-11-28 04:34:07,112 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 147 [2024-11-28 04:34:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:07,113 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2024-11-28 04:34:07,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-28 04:34:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2024-11-28 04:34:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:34:07,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:07,121 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:34:07,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:07,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:07,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:07,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2054708089, now seen corresponding path program 1 times [2024-11-28 04:34:07,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:07,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38625825] [2024-11-28 04:34:07,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-28 04:34:17,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:17,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38625825] [2024-11-28 04:34:17,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38625825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:17,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115962994] [2024-11-28 04:34:17,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:17,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:17,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:17,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:17,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:34:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:24,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 04:34:24,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:24,695 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 [2024-11-28 04:34:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 04:34:29,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:29,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115962994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:29,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:29,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 17 [2024-11-28 04:34:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767211537] [2024-11-28 04:34:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:29,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:34:29,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:29,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:34:29,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:34:29,150 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2024-11-28 04:34:33,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:33,099 INFO L93 Difference]: Finished difference Result 317 states and 388 transitions. [2024-11-28 04:34:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:34:33,100 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 147 [2024-11-28 04:34:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:33,104 INFO L225 Difference]: With dead ends: 317 [2024-11-28 04:34:33,104 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 04:34:33,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 125 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:34:33,106 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 122 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:33,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1392 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:34:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 04:34:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2024-11-28 04:34:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 131 states have (on average 1.1450381679389312) internal successors, (150), 132 states have internal predecessors, (150), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:34:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 232 transitions. [2024-11-28 04:34:33,145 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 232 transitions. Word has length 147 [2024-11-28 04:34:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:33,145 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 232 transitions. [2024-11-28 04:34:33,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2024-11-28 04:34:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 232 transitions. [2024-11-28 04:34:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:34:33,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:33,149 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:34:33,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:33,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:33,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:33,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash 402732533, now seen corresponding path program 1 times [2024-11-28 04:34:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212325335] [2024-11-28 04:34:33,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-28 04:34:40,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:40,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212325335] [2024-11-28 04:34:40,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212325335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:40,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836030674] [2024-11-28 04:34:40,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:40,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:40,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:40,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:40,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:34:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:47,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 4357 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:34:47,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-28 04:34:47,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836030674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:47,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:34:47,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392643609] [2024-11-28 04:34:47,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:47,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:34:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:47,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:34:47,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:34:47,762 INFO L87 Difference]: Start difference. First operand 195 states and 232 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:34:48,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:48,854 INFO L93 Difference]: Finished difference Result 318 states and 385 transitions. [2024-11-28 04:34:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:34:48,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2024-11-28 04:34:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:48,858 INFO L225 Difference]: With dead ends: 318 [2024-11-28 04:34:48,858 INFO L226 Difference]: Without dead ends: 200 [2024-11-28 04:34:48,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:34:48,860 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 207 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:48,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 688 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:34:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-28 04:34:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-28 04:34:48,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 134 states have (on average 1.1417910447761195) internal successors, (153), 136 states have internal predecessors, (153), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2024-11-28 04:34:48,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 239 transitions. [2024-11-28 04:34:48,885 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 239 transitions. Word has length 147 [2024-11-28 04:34:48,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:48,885 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 239 transitions. [2024-11-28 04:34:48,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-28 04:34:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 239 transitions. [2024-11-28 04:34:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 04:34:48,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:48,889 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-28 04:34:48,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:49,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:49,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:49,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash 818721222, now seen corresponding path program 1 times [2024-11-28 04:34:49,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:49,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818389069] [2024-11-28 04:34:49,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:49,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-28 04:34:56,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818389069] [2024-11-28 04:34:56,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818389069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155005051] [2024-11-28 04:34:56,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:56,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:56,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:56,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:35:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:04,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 4386 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:35:04,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-28 04:35:05,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:05,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155005051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:05,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:05,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 04:35:05,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676181203] [2024-11-28 04:35:05,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:05,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:05,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:05,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:05,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:35:05,520 INFO L87 Difference]: Start difference. First operand 200 states and 239 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:35:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:07,803 INFO L93 Difference]: Finished difference Result 300 states and 359 transitions. [2024-11-28 04:35:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:35:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2024-11-28 04:35:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:07,807 INFO L225 Difference]: With dead ends: 300 [2024-11-28 04:35:07,808 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 04:35:07,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:35:07,810 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 240 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:07,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 957 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:35:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 04:35:07,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-28 04:35:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 129 states have (on average 1.1317829457364341) internal successors, (146), 130 states have internal predecessors, (146), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:35:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 228 transitions. [2024-11-28 04:35:07,845 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 228 transitions. Word has length 153 [2024-11-28 04:35:07,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:07,848 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 228 transitions. [2024-11-28 04:35:07,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-28 04:35:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 228 transitions. [2024-11-28 04:35:07,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:35:07,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:07,851 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:07,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:35:08,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:08,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:08,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash -411071593, now seen corresponding path program 1 times [2024-11-28 04:35:08,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:08,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11372923] [2024-11-28 04:35:08,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:08,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-28 04:35:15,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11372923] [2024-11-28 04:35:15,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11372923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125098801] [2024-11-28 04:35:15,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:15,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:15,982 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:15,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:35:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:23,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 4415 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:35:23,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:28,414 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$#4.offset| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0))) (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$#4.base| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0)))) is different from true [2024-11-28 04:35:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 04:35:36,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:36,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125098801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:36,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:36,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 04:35:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948542565] [2024-11-28 04:35:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:36,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:35:36,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:36,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:35:36,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-28 04:35:36,946 INFO L87 Difference]: Start difference. First operand 193 states and 228 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 04:35:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:37,684 INFO L93 Difference]: Finished difference Result 311 states and 375 transitions. [2024-11-28 04:35:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:35:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 159 [2024-11-28 04:35:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:37,687 INFO L225 Difference]: With dead ends: 311 [2024-11-28 04:35:37,688 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 04:35:37,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-11-28 04:35:37,689 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 2 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 211 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:37,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1145 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 211 Unchecked, 0.7s Time] [2024-11-28 04:35:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 04:35:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-28 04:35:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 129 states have (on average 1.124031007751938) internal successors, (145), 130 states have internal predecessors, (145), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:35:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 227 transitions. [2024-11-28 04:35:37,718 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 227 transitions. Word has length 159 [2024-11-28 04:35:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:37,719 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 227 transitions. [2024-11-28 04:35:37,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-28 04:35:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 227 transitions. [2024-11-28 04:35:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:35:37,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:37,725 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:37,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:35:37,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:37,926 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:37,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash 559097067, now seen corresponding path program 1 times [2024-11-28 04:35:37,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781496136] [2024-11-28 04:35:37,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 04:35:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:48,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781496136] [2024-11-28 04:35:48,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781496136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:48,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536451911] [2024-11-28 04:35:48,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:48,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:48,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:48,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:48,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:35:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:56,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 4479 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-28 04:35:57,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:58,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:35:58,894 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 27 treesize of output 1 [2024-11-28 04:35:58,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:36:02,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:36:02,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2024-11-28 04:36:03,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:36:03,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2024-11-28 04:36:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 126 proven. 24 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 04:36:11,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:22,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536451911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:22,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:36:22,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 24] total 28 [2024-11-28 04:36:22,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271757793] [2024-11-28 04:36:22,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:22,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:36:22,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:22,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:36:22,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1694, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:36:22,359 INFO L87 Difference]: Start difference. First operand 193 states and 227 transitions. Second operand has 28 states, 24 states have (on average 5.458333333333333) internal successors, (131), 23 states have internal predecessors, (131), 13 states have call successors, (50), 4 states have call predecessors, (50), 10 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-28 04:36:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:28,305 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2024-11-28 04:36:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:36:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.458333333333333) internal successors, (131), 23 states have internal predecessors, (131), 13 states have call successors, (50), 4 states have call predecessors, (50), 10 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 173 [2024-11-28 04:36:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:28,309 INFO L225 Difference]: With dead ends: 374 [2024-11-28 04:36:28,309 INFO L226 Difference]: Without dead ends: 196 [2024-11-28 04:36:28,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 154 SyntacticMatches, 16 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=126, Invalid=1944, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:36:28,312 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 4 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:28,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3851 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:36:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-28 04:36:28,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2024-11-28 04:36:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 129 states have (on average 1.1162790697674418) internal successors, (144), 130 states have internal predecessors, (144), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:36:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 226 transitions. [2024-11-28 04:36:28,332 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 226 transitions. Word has length 173 [2024-11-28 04:36:28,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:28,333 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 226 transitions. [2024-11-28 04:36:28,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.458333333333333) internal successors, (131), 23 states have internal predecessors, (131), 13 states have call successors, (50), 4 states have call predecessors, (50), 10 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-28 04:36:28,334 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 226 transitions. [2024-11-28 04:36:28,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:36:28,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:28,337 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:28,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:28,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 04:36:28,538 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:28,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash -878178138, now seen corresponding path program 1 times [2024-11-28 04:36:28,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:28,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938642323] [2024-11-28 04:36:28,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:28,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-28 04:36:38,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938642323] [2024-11-28 04:36:38,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938642323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163823530] [2024-11-28 04:36:38,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:38,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:38,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:38,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:36:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:49,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 4483 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 04:36:49,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:50,872 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 27 treesize of output 1 [2024-11-28 04:36:50,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:36:50,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:36:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:36:54,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 18 [2024-11-28 04:36:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:36:55,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 18 [2024-11-28 04:37:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 151 proven. 7 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-28 04:37:02,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:05,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163823530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:05,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:37:05,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22] total 26 [2024-11-28 04:37:05,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511981523] [2024-11-28 04:37:05,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:05,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:37:05,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:05,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:37:05,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:37:05,489 INFO L87 Difference]: Start difference. First operand 193 states and 226 transitions. Second operand has 26 states, 23 states have (on average 6.130434782608695) internal successors, (141), 24 states have internal predecessors, (141), 12 states have call successors, (51), 4 states have call predecessors, (51), 10 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-11-28 04:37:16,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:16,539 INFO L93 Difference]: Finished difference Result 386 states and 445 transitions. [2024-11-28 04:37:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:37:16,541 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 6.130434782608695) internal successors, (141), 24 states have internal predecessors, (141), 12 states have call successors, (51), 4 states have call predecessors, (51), 10 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) Word has length 175 [2024-11-28 04:37:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:16,542 INFO L225 Difference]: With dead ends: 386 [2024-11-28 04:37:16,543 INFO L226 Difference]: Without dead ends: 242 [2024-11-28 04:37:16,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 168 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=138, Invalid=1422, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:37:16,545 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 86 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:16,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 2789 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 04:37:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-28 04:37:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 223. [2024-11-28 04:37:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 152 states have (on average 1.0986842105263157) internal successors, (167), 153 states have internal predecessors, (167), 43 states have call successors, (43), 27 states have call predecessors, (43), 27 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 04:37:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 252 transitions. [2024-11-28 04:37:16,574 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 252 transitions. Word has length 175 [2024-11-28 04:37:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:16,574 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 252 transitions. [2024-11-28 04:37:16,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 6.130434782608695) internal successors, (141), 24 states have internal predecessors, (141), 12 states have call successors, (51), 4 states have call predecessors, (51), 10 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-11-28 04:37:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 252 transitions. [2024-11-28 04:37:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 04:37:16,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:16,578 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:16,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:37:16,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:37:16,778 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:16,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1801924701, now seen corresponding path program 1 times [2024-11-28 04:37:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807236554] [2024-11-28 04:37:16,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 18 proven. 29 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-28 04:37:34,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:34,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807236554] [2024-11-28 04:37:34,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807236554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370056831] [2024-11-28 04:37:34,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:34,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:34,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:34,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:34,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:37:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:42,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 4582 conjuncts, 158 conjuncts are in the unsatisfiable core [2024-11-28 04:37:42,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:44,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:37:44,579 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 27 treesize of output 1 [2024-11-28 04:37:44,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:37:52,966 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-28 04:37:52,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:03,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370056831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:03,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:38:03,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 23] total 33 [2024-11-28 04:38:03,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466321197] [2024-11-28 04:38:03,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:03,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:38:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:03,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:38:03,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2119, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:38:03,842 INFO L87 Difference]: Start difference. First operand 223 states and 252 transitions. Second operand has 33 states, 28 states have (on average 5.107142857142857) internal successors, (143), 26 states have internal predecessors, (143), 10 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (49), 11 states have call predecessors, (49), 10 states have call successors, (49) [2024-11-28 04:38:19,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:19,756 INFO L93 Difference]: Finished difference Result 451 states and 508 transitions. [2024-11-28 04:38:19,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 04:38:19,757 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 5.107142857142857) internal successors, (143), 26 states have internal predecessors, (143), 10 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (49), 11 states have call predecessors, (49), 10 states have call successors, (49) Word has length 185 [2024-11-28 04:38:19,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:19,759 INFO L225 Difference]: With dead ends: 451 [2024-11-28 04:38:19,759 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:38:19,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=213, Invalid=3209, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 04:38:19,762 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 12 mSDsluCounter, 4933 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5133 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:19,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5133 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-28 04:38:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:38:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 234. [2024-11-28 04:38:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 160 states have (on average 1.0875) internal successors, (174), 162 states have internal predecessors, (174), 43 states have call successors, (43), 27 states have call predecessors, (43), 30 states have return successors, (45), 44 states have call predecessors, (45), 42 states have call successors, (45) [2024-11-28 04:38:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 262 transitions. [2024-11-28 04:38:19,799 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 262 transitions. Word has length 185 [2024-11-28 04:38:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:19,799 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 262 transitions. [2024-11-28 04:38:19,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 5.107142857142857) internal successors, (143), 26 states have internal predecessors, (143), 10 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (49), 11 states have call predecessors, (49), 10 states have call successors, (49) [2024-11-28 04:38:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 262 transitions. [2024-11-28 04:38:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 04:38:19,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:19,802 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:19,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:38:20,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:38:20,003 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:20,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash -847655750, now seen corresponding path program 1 times [2024-11-28 04:38:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307448255] [2024-11-28 04:38:20,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:20,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:38:36,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898835122] [2024-11-28 04:38:36,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:36,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:36,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:36,681 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:36,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa2e852-3623-4b5f-af8b-623eff66604b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process