./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/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 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:30:56,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:30:56,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:30:56,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:30:56,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:30:56,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:30:56,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:30:56,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:30:56,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:30:56,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:30:56,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:30:56,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:30:56,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:30:56,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:30:56,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:30:56,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:30:56,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:30:56,827 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:30:56,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:30:56,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:30:56,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:30:56,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:30:56,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:30:56,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:30:56,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:30:56,830 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:30:56,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:30:56,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:30:56,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:30:56,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:30:56,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:30:56,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:30:56,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:30:56,832 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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/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 -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2024-11-28 04:30:57,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:30:57,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:30:57,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:30:57,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:30:57,206 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:30:57,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2024-11-28 04:31:00,230 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/data/a5fd01bbc/b1361ff9612145dabc8ce59671672785/FLAG28454c41c [2024-11-28 04:31:01,030 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:31:01,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2024-11-28 04:31:01,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/data/a5fd01bbc/b1361ff9612145dabc8ce59671672785/FLAG28454c41c [2024-11-28 04:31:01,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/data/a5fd01bbc/b1361ff9612145dabc8ce59671672785 [2024-11-28 04:31:01,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:31:01,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:31:01,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:31:01,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:31:01,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:31:01,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:31:01" (1/1) ... [2024-11-28 04:31:01,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de979cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:01, skipping insertion in model container [2024-11-28 04:31:01,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:31:01" (1/1) ... [2024-11-28 04:31:01,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:31:01,602 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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-11-28 04:31:01,614 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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-11-28 04:31:02,828 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,829 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,829 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,831 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,832 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,847 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,848 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,851 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,854 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,857 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,858 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:02,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,598 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,612 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,627 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,694 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,695 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:31:03,729 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:31:03,744 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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-11-28 04:31:03,745 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_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-11-28 04:31:03,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,839 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,840 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,841 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,858 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,868 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,869 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,870 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:03,870 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,000 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,001 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,005 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,005 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,006 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,012 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2024-11-28 04:31:04,052 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,053 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:31:04,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:31:04,346 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:31:04,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04 WrapperNode [2024-11-28 04:31:04,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:31:04,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:31:04,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:31:04,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:31:04,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,493 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-11-28 04:31:04,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:31:04,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:31:04,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:31:04,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:31:04,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,610 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 3, 6, 9, 73]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 1, 0, 5, 10]. The 243 writes are split as follows [232, 0, 1, 2, 2, 6]. [2024-11-28 04:31:04,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:31:04,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:31:04,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:31:04,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:31:04,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (1/1) ... [2024-11-28 04:31:04,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:31:04,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:04,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:31:04,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:31:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-28 04:31:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-28 04:31:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:31:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-28 04:31:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-28 04:31:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-28 04:31:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-28 04:31:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:31:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:31:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:31:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:31:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:31:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:31:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:31:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 04:31:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 04:31:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:31:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:31:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:31:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:31:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-11-28 04:31:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:31:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:31:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:31:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:31:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 04:31:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 04:31:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-28 04:31:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-28 04:31:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 04:31:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 04:31:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-28 04:31:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:31:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-28 04:31:04,775 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-28 04:31:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 04:31:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 04:31:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 04:31:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-28 04:31:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-28 04:31:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-28 04:31:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-28 04:31:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-28 04:31:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-28 04:31:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-28 04:31:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-28 04:31:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:31:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:31:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:31:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:31:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:31:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:31:05,182 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:31:05,218 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:31:12,214 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-28 04:31:12,214 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:31:12,240 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:31:12,242 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:31:12,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:31:12 BoogieIcfgContainer [2024-11-28 04:31:12,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:31:12,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:31:12,247 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:31:12,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:31:12,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:31:01" (1/3) ... [2024-11-28 04:31:12,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cfbc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:31:12, skipping insertion in model container [2024-11-28 04:31:12,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:31:04" (2/3) ... [2024-11-28 04:31:12,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cfbc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:31:12, skipping insertion in model container [2024-11-28 04:31:12,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:31:12" (3/3) ... [2024-11-28 04:31:12,260 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2024-11-28 04:31:12,283 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:31:12,285 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness_negated.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:31:12,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:31:12,396 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;@729729c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:31:12,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:31:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 04:31:12,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:31:12,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:12,417 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:12,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:12,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-11-28 04:31:12,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:12,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614010429] [2024-11-28 04:31:12,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:12,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-28 04:31:21,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:21,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614010429] [2024-11-28 04:31:21,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614010429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:21,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248340584] [2024-11-28 04:31:21,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:21,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:21,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:21,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:21,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:31:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:30,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 4127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:31:30,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-28 04:31:30,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:31:30,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248340584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:31:30,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:30,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:31:30,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818406330] [2024-11-28 04:31:30,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:31:30,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:31:30,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:30,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:31:30,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:31:30,689 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:31:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:30,778 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2024-11-28 04:31:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:31:30,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-28 04:31:30,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:30,792 INFO L225 Difference]: With dead ends: 499 [2024-11-28 04:31:30,792 INFO L226 Difference]: Without dead ends: 249 [2024-11-28 04:31:30,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 04:31:30,803 INFO L435 NwaCegarLoop]: 345 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, 345 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 04:31:30,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:31:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-28 04:31:30,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-28 04:31:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:31:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-11-28 04:31:30,916 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-11-28 04:31:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:30,920 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-11-28 04:31:30,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:31:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-11-28 04:31:30,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:31:30,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:30,929 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:30,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:31:31,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:31:31,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:31,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:31,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1387993283, now seen corresponding path program 1 times [2024-11-28 04:31:31,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831732849] [2024-11-28 04:31:31,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:31:41,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831732849] [2024-11-28 04:31:41,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831732849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:31:41,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:31:41,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:31:41,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871176998] [2024-11-28 04:31:41,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:31:41,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:31:41,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:41,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:31:41,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:31:41,837 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:31:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:42,430 INFO L93 Difference]: Finished difference Result 259 states and 367 transitions. [2024-11-28 04:31:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:31:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-11-28 04:31:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:42,439 INFO L225 Difference]: With dead ends: 259 [2024-11-28 04:31:42,441 INFO L226 Difference]: Without dead ends: 257 [2024-11-28 04:31:42,442 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 04:31:42,443 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 3 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:42,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1661 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:31:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-28 04:31:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2024-11-28 04:31:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 144 states have (on average 1.1736111111111112) internal successors, (169), 146 states have internal predecessors, (169), 89 states have call successors, (89), 21 states have call predecessors, (89), 22 states have return successors, (106), 88 states have call predecessors, (106), 88 states have call successors, (106) [2024-11-28 04:31:42,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2024-11-28 04:31:42,507 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 87 [2024-11-28 04:31:42,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:42,508 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2024-11-28 04:31:42,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:31:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2024-11-28 04:31:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:31:42,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:42,515 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:42,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:31:42,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:42,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:42,515 INFO L85 PathProgramCache]: Analyzing trace with hash 481193347, now seen corresponding path program 1 times [2024-11-28 04:31:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:42,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787089204] [2024-11-28 04:31:42,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:42,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 04:31:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787089204] [2024-11-28 04:31:51,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787089204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:31:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:31:51,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:31:51,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386161677] [2024-11-28 04:31:51,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:31:51,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:31:51,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:51,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:31:51,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:31:51,205 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:31:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:53,516 INFO L93 Difference]: Finished difference Result 485 states and 699 transitions. [2024-11-28 04:31:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:31:53,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 102 [2024-11-28 04:31:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:53,521 INFO L225 Difference]: With dead ends: 485 [2024-11-28 04:31:53,522 INFO L226 Difference]: Without dead ends: 268 [2024-11-28 04:31:53,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:31:53,524 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 119 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:53,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2020 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:31:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-28 04:31:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-28 04:31:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 152 states have internal predecessors, (176), 94 states have call successors, (94), 22 states have call predecessors, (94), 23 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2024-11-28 04:31:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 376 transitions. [2024-11-28 04:31:53,566 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 376 transitions. Word has length 102 [2024-11-28 04:31:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:53,567 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 376 transitions. [2024-11-28 04:31:53,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:31:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 376 transitions. [2024-11-28 04:31:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:31:53,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:53,573 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:53,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:31:53,573 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:53,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:53,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2005621105, now seen corresponding path program 1 times [2024-11-28 04:31:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544650529] [2024-11-28 04:31:53,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:53,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-28 04:32:02,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544650529] [2024-11-28 04:32:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544650529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:02,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806179225] [2024-11-28 04:32:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:02,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:02,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:02,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:02,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:02,460 INFO L87 Difference]: Start difference. First operand 268 states and 376 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:32:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:02,990 INFO L93 Difference]: Finished difference Result 274 states and 381 transitions. [2024-11-28 04:32:02,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 102 [2024-11-28 04:32:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:02,994 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:32:02,994 INFO L226 Difference]: Without dead ends: 272 [2024-11-28 04:32:02,995 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 04:32:02,996 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 3 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:02,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1667 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:32:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-28 04:32:03,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-28 04:32:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 153 states have (on average 1.1699346405228759) internal successors, (179), 155 states have internal predecessors, (179), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2024-11-28 04:32:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 379 transitions. [2024-11-28 04:32:03,027 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 379 transitions. Word has length 102 [2024-11-28 04:32:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:03,028 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 379 transitions. [2024-11-28 04:32:03,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:32:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 379 transitions. [2024-11-28 04:32:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 04:32:03,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:03,031 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 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] [2024-11-28 04:32:03,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:32:03,032 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:03,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:03,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1718147793, now seen corresponding path program 1 times [2024-11-28 04:32:03,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:03,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545310125] [2024-11-28 04:32:03,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:03,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:32:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545310125] [2024-11-28 04:32:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545310125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:09,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:09,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:32:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387778223] [2024-11-28 04:32:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:09,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:09,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:09,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:09,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:09,710 INFO L87 Difference]: Start difference. First operand 272 states and 379 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 04:32:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:09,902 INFO L93 Difference]: Finished difference Result 321 states and 437 transitions. [2024-11-28 04:32:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:09,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2024-11-28 04:32:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:09,906 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:32:09,907 INFO L226 Difference]: Without dead ends: 274 [2024-11-28 04:32:09,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:32:09,908 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:09,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1677 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:32:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-28 04:32:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2024-11-28 04:32:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 155 states have (on average 1.167741935483871) internal successors, (181), 157 states have internal predecessors, (181), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2024-11-28 04:32:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-28 04:32:09,949 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 116 [2024-11-28 04:32:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:09,951 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-28 04:32:09,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 04:32:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-28 04:32:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 04:32:09,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:09,954 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 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] [2024-11-28 04:32:09,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:32:09,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1913127112, now seen corresponding path program 1 times [2024-11-28 04:32:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:09,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516260425] [2024-11-28 04:32:09,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 04:32:18,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:18,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516260425] [2024-11-28 04:32:18,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516260425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:18,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217314122] [2024-11-28 04:32:18,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:18,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:18,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:18,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:32:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:39,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 4237 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:32:39,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-28 04:32:39,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:39,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217314122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:39,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:39,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-28 04:32:39,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278519882] [2024-11-28 04:32:39,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:39,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:32:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:39,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:32:39,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:32:39,985 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 04:32:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:40,273 INFO L93 Difference]: Finished difference Result 310 states and 418 transitions. [2024-11-28 04:32:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:40,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 117 [2024-11-28 04:32:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:40,275 INFO L225 Difference]: With dead ends: 310 [2024-11-28 04:32:40,275 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:32:40,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:32:40,280 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:40,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 390 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:32:40,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:32:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:32:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:32:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:32:40,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2024-11-28 04:32:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:40,282 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:32:40,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 04:32:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:32:40,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:32:40,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:32:40,491 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process [2024-11-28 04:32:40,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:40,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:32:40,512 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 04:32:40,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:32:41,619 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:32:41,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:32:41 BoogieIcfgContainer [2024-11-28 04:32:41,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:32:41,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:32:41,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:32:41,629 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:32:41,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:31:12" (3/4) ... [2024-11-28 04:32:41,632 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:32:41,639 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_impl [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint8_t [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:32:41,640 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memmove [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memmove_impl [2024-11-28 04:32:41,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-11-28 04:32:41,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2024-11-28 04:32:41,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_pop_back [2024-11-28 04:32:41,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 04:32:41,658 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2024-11-28 04:32:41,659 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-11-28 04:32:41,661 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-28 04:32:41,662 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 04:32:41,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:32:41,665 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:32:41,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:32:41,668 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:32:42,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:32:42,268 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:32:42,269 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:32:42,270 INFO L158 Benchmark]: Toolchain (without parser) took 101155.33ms. Allocated memory was 142.6MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 93.5MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 928.0MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,271 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:32:42,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3231.63ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 93.2MB in the beginning and 75.5MB in the end (delta: 17.7MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.69ms. Allocated memory is still 151.0MB. Free memory was 75.5MB in the beginning and 66.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,272 INFO L158 Benchmark]: Boogie Preprocessor took 187.23ms. Allocated memory is still 151.0MB. Free memory was 66.4MB in the beginning and 52.0MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,273 INFO L158 Benchmark]: RCFGBuilder took 7555.83ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 52.0MB in the beginning and 261.4MB in the end (delta: -209.4MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,273 INFO L158 Benchmark]: TraceAbstraction took 89381.74ms. Allocated memory was 402.7MB in the beginning and 3.1GB in the end (delta: 2.7GB). Free memory was 259.5MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 705.8MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,274 INFO L158 Benchmark]: Witness Printer took 640.49ms. Allocated memory is still 3.1GB. Free memory was 2.3GB in the beginning and 2.1GB in the end (delta: 130.0MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2024-11-28 04:32:42,277 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3231.63ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 93.2MB in the beginning and 75.5MB in the end (delta: 17.7MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.69ms. Allocated memory is still 151.0MB. Free memory was 75.5MB in the beginning and 66.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 187.23ms. Allocated memory is still 151.0MB. Free memory was 66.4MB in the beginning and 52.0MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 7555.83ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 52.0MB in the beginning and 261.4MB in the end (delta: -209.4MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * TraceAbstraction took 89381.74ms. Allocated memory was 402.7MB in the beginning and 3.1GB in the end (delta: 2.7GB). Free memory was 259.5MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 705.8MB. Max. memory is 16.1GB. * Witness Printer took 640.49ms. Allocated memory is still 3.1GB. Free memory was 2.3GB in the beginning and 2.1GB in the end (delta: 130.0MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7793]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 88.2s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 7760 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5999 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 1761 mSDtfsCounter, 358 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 16.5s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 815 NumberOfCodeBlocks, 815 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 807 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8364 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 748/762 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:32:42,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b99c0c0-0df8-449f-9025-0d6c8ce7c666/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE