./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/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_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/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_b0c134d8-c530-490d-8079-60a9f3f7667f/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 dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:23,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:23,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:06:23,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:23,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:23,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:23,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:23,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:23,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:23,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:23,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:23,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:23,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:23,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:23,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:23,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:23,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:23,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:23,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:23,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:06:23,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:06:23,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:23,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:23,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:23,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:23,456 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_b0c134d8-c530-490d-8079-60a9f3f7667f/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 -> dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d [2024-11-28 03:06:23,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:23,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:23,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:23,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:23,858 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:23,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2024-11-28 03:06:27,575 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/data/f4a669397/a4766eb1ad614521acd3ff0c9e8d8cfd/FLAG42657b96d [2024-11-28 03:06:28,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:28,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2024-11-28 03:06:28,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/data/f4a669397/a4766eb1ad614521acd3ff0c9e8d8cfd/FLAG42657b96d [2024-11-28 03:06:28,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/data/f4a669397/a4766eb1ad614521acd3ff0c9e8d8cfd [2024-11-28 03:06:28,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:28,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:28,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:28,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:28,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:28,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:28" (1/1) ... [2024-11-28 03:06:28,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529ba9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:28, skipping insertion in model container [2024-11-28 03:06:28,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:28" (1/1) ... [2024-11-28 03:06:28,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:28,941 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_b0c134d8-c530-490d-8079-60a9f3f7667f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2024-11-28 03:06:28,949 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_b0c134d8-c530-490d-8079-60a9f3f7667f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2024-11-28 03:06:30,163 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,164 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,164 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,165 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,168 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,189 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,190 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,193 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,194 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,197 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,198 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,199 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:30,200 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,052 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,063 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:31,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:31,266 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_b0c134d8-c530-490d-8079-60a9f3f7667f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2024-11-28 03:06:31,267 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_b0c134d8-c530-490d-8079-60a9f3f7667f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2024-11-28 03:06:31,389 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,389 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,390 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,390 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,391 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,409 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,410 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,415 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,415 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,417 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,417 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,418 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,418 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,553 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,564 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:06:31,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-11-28 03:06:31,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:31,846 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:31,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31 WrapperNode [2024-11-28 03:06:31,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:31,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:31,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:31,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:31,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:31,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:31,986 INFO L138 Inliner]: procedures = 679, calls = 1720, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 701 [2024-11-28 03:06:31,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:31,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:31,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:31,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:32,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,114 INFO L175 MemorySlicer]: Split 358 memory accesses to 7 slices as follows [238, 2, 7, 3, 92, 6, 10]. 66 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [6, 2, 5, 1, 20, 0, 5]. The 248 writes are split as follows [232, 0, 0, 1, 13, 2, 0]. [2024-11-28 03:06:32,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,180 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:32,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:32,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:32,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:32,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2024-11-28 03:06:32,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:32,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:32,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:32,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 03:06:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 03:06:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:06:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:06:32,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:06:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:06:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:06:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:06:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 03:06:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 03:06:32,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:06:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:06:32,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:06:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:06:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-28 03:06:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:06:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:06:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 03:06:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 03:06:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:06:32,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:06:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:06:32,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 03:06:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:06:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:06:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:06:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:06:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:06:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:06:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:06:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 03:06:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:06:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-28 03:06:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 03:06:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:06:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:06:32,785 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:32,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:39,774 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-28 03:06:39,775 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:39,795 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:39,798 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:06:39,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:39 BoogieIcfgContainer [2024-11-28 03:06:39,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:39,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:06:39,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:06:39,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:06:39,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:28" (1/3) ... [2024-11-28 03:06:39,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfb1880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:39, skipping insertion in model container [2024-11-28 03:06:39,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (2/3) ... [2024-11-28 03:06:39,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfb1880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:39, skipping insertion in model container [2024-11-28 03:06:39,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:39" (3/3) ... [2024-11-28 03:06:39,821 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2024-11-28 03:06:39,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:06:39,848 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_contents_harness.i that has 15 procedures, 160 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 03:06:39,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:06:39,973 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;@2c1c0ffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:06:39,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:06:39,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 03:06:40,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 03:06:40,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:40,013 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 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] [2024-11-28 03:06:40,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:40,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash -959965628, now seen corresponding path program 1 times [2024-11-28 03:06:40,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:40,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162321038] [2024-11-28 03:06:40,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:40,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-28 03:06:51,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:51,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162321038] [2024-11-28 03:06:51,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162321038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436696107] [2024-11-28 03:06:51,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:51,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:51,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:51,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:07:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:01,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 4627 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:07:01,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-28 03:07:01,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:01,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436696107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:01,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:01,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-11-28 03:07:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199609163] [2024-11-28 03:07:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:01,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:01,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:01,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:01,639 INFO L87 Difference]: Start difference. First operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 03:07:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:01,770 INFO L93 Difference]: Finished difference Result 317 states and 454 transitions. [2024-11-28 03:07:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:01,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 174 [2024-11-28 03:07:01,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:01,791 INFO L225 Difference]: With dead ends: 317 [2024-11-28 03:07:01,792 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 03:07:01,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:01,809 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 03:07:01,810 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 03:07:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 03:07:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-28 03:07:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 89 states have (on average 1.146067415730337) internal successors, (102), 90 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:07:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2024-11-28 03:07:01,908 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 174 [2024-11-28 03:07:01,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:01,910 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2024-11-28 03:07:01,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-28 03:07:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2024-11-28 03:07:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 03:07:01,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:01,919 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 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] [2024-11-28 03:07:01,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:07:02,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:02,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:02,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1876441160, now seen corresponding path program 1 times [2024-11-28 03:07:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:02,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260254033] [2024-11-28 03:07:02,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:12,397 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-28 03:07:12,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:12,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260254033] [2024-11-28 03:07:12,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260254033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:12,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807340290] [2024-11-28 03:07:12,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:12,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:12,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:12,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:12,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:07:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:21,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 4633 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:07:21,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2024-11-28 03:07:22,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807340290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:22,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:22,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 03:07:22,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960316355] [2024-11-28 03:07:22,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:22,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:22,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:22,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:22,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:07:22,021 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:07:27,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:28,426 INFO L93 Difference]: Finished difference Result 307 states and 408 transitions. [2024-11-28 03:07:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 174 [2024-11-28 03:07:28,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:28,433 INFO L225 Difference]: With dead ends: 307 [2024-11-28 03:07:28,433 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 03:07:28,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:28,437 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 198 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:28,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 575 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 03:07:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 03:07:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-28 03:07:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2024-11-28 03:07:28,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2024-11-28 03:07:28,484 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 174 [2024-11-28 03:07:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:28,487 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2024-11-28 03:07:28,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:07:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2024-11-28 03:07:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 03:07:28,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:28,495 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 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] [2024-11-28 03:07:28,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:07:28,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:28,696 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:28,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1033136662, now seen corresponding path program 1 times [2024-11-28 03:07:28,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:28,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454821031] [2024-11-28 03:07:28,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:28,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-28 03:07:38,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454821031] [2024-11-28 03:07:38,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454821031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664392240] [2024-11-28 03:07:38,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:38,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:38,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:38,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:38,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:07:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:47,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 4760 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:07:47,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 03:07:48,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:48,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664392240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:48,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:48,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 03:07:48,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152475845] [2024-11-28 03:07:48,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:48,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:48,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:48,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:48,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:07:48,169 INFO L87 Difference]: Start difference. First operand 158 states and 212 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:07:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:51,283 INFO L93 Difference]: Finished difference Result 271 states and 365 transitions. [2024-11-28 03:07:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 189 [2024-11-28 03:07:51,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:51,287 INFO L225 Difference]: With dead ends: 271 [2024-11-28 03:07:51,288 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 03:07:51,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:51,290 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 196 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:51,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 575 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:07:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 03:07:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-28 03:07:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2024-11-28 03:07:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 210 transitions. [2024-11-28 03:07:51,316 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 210 transitions. Word has length 189 [2024-11-28 03:07:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:51,317 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 210 transitions. [2024-11-28 03:07:51,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:07:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 210 transitions. [2024-11-28 03:07:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-28 03:07:51,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:51,322 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:07:51,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:51,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:51,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:51,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash -765566814, now seen corresponding path program 2 times [2024-11-28 03:07:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:51,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511861619] [2024-11-28 03:07:51,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:07:51,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:59,630 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:07:59,630 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:08:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-28 03:08:01,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:01,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511861619] [2024-11-28 03:08:01,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511861619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:01,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:01,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:08:01,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454440375] [2024-11-28 03:08:01,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:01,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:08:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:01,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:08:01,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:08:01,746 INFO L87 Difference]: Start difference. First operand 158 states and 210 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:08:06,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:06,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:06,343 INFO L93 Difference]: Finished difference Result 240 states and 316 transitions. [2024-11-28 03:08:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:08:06,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 204 [2024-11-28 03:08:06,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:06,351 INFO L225 Difference]: With dead ends: 240 [2024-11-28 03:08:06,355 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 03:08:06,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:08:06,358 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 23 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:06,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 849 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 03:08:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 03:08:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-28 03:08:06,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2024-11-28 03:08:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2024-11-28 03:08:06,420 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 204 [2024-11-28 03:08:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:06,422 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2024-11-28 03:08:06,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 03:08:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2024-11-28 03:08:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-28 03:08:06,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:06,431 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 03:08:06,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:08:06,432 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:06,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1919405256, now seen corresponding path program 3 times [2024-11-28 03:08:06,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:08:06,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277105590] [2024-11-28 03:08:06,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:08:06,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:08:17,151 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:08:17,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:08:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-28 03:08:21,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:21,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277105590] [2024-11-28 03:08:21,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277105590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:21,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837858766] [2024-11-28 03:08:21,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:08:21,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:08:21,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:08:21,098 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:08:21,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c134d8-c530-490d-8079-60a9f3f7667f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process