./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:00:51,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:00:51,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 06:00:51,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:00:51,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:00:51,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:00:51,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:00:51,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:00:51,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:00:51,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:00:51,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:00:51,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:00:51,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:00:51,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:00:51,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:00:51,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:00:51,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:00:51,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:00:51,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:00:51,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:00:51,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:00:51,539 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_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a [2024-12-02 06:00:51,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:00:51,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:00:51,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:00:51,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:00:51,743 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:00:51,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2024-12-02 06:00:54,340 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/data/a4d0afe6d/d1480ea33d7a4aa294eb74b183889cca/FLAGb999537ba [2024-12-02 06:00:54,736 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:00:54,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2024-12-02 06:00:54,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/data/a4d0afe6d/d1480ea33d7a4aa294eb74b183889cca/FLAGb999537ba [2024-12-02 06:00:54,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/data/a4d0afe6d/d1480ea33d7a4aa294eb74b183889cca [2024-12-02 06:00:54,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:00:54,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:00:54,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:00:54,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:00:54,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:00:54,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:00:54" (1/1) ... [2024-12-02 06:00:54,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7474aef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:54, skipping insertion in model container [2024-12-02 06:00:54,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:00:54" (1/1) ... [2024-12-02 06:00:54,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:00:55,083 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_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2024-12-02 06:00:55,090 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_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2024-12-02 06:00:55,806 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,807 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,807 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,808 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,809 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,824 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,825 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,827 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:55,828 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,435 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,435 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:00:56,544 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:00:56,557 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_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2024-12-02 06:00:56,558 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_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2024-12-02 06:00:56,596 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,596 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,597 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,603 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,603 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,604 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,604 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-12-02 06:00:56,714 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,715 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 06:00:56,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-12-02 06:00:56,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:00:56,961 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:00:56,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56 WrapperNode [2024-12-02 06:00:56,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:00:56,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:00:56,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:00:56,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:00:56,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,091 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1027 [2024-12-02 06:00:57,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:00:57,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:00:57,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:00:57,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:00:57,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,183 INFO L175 MemorySlicer]: Split 569 memory accesses to 9 slices as follows [257, 2, 37, 8, 2, 6, 248, 4, 5]. 45 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [0, 2, 2, 2, 1, 0, 6, 2, 5]. The 504 writes are split as follows [257, 0, 9, 0, 0, 2, 236, 0, 0]. [2024-12-02 06:00:57,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,224 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:00:57,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:00:57,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:00:57,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:00:57,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (1/1) ... [2024-12-02 06:00:57,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:00:57,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:00:57,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:00:57,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:00:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-12-02 06:00:57,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-12-02 06:00:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2024-12-02 06:00:57,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2024-12-02 06:00:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 06:00:57,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 06:00:57,322 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 06:00:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 06:00:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh64 [2024-12-02 06:00:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh64 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 06:00:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 06:00:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 06:00:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 06:00:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 06:00:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 06:00:57,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 06:00:57,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 06:00:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 06:00:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 06:00:57,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:00:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 06:00:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 06:00:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 06:00:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-12-02 06:00:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:00:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:00:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 06:00:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 06:00:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2024-12-02 06:00:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-12-02 06:00:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 06:00:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 06:00:57,650 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:00:57,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:01:05,873 INFO L? ?]: Removed 271 outVars from TransFormulas that were not future-live. [2024-12-02 06:01:05,873 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:01:05,885 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:01:05,885 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 06:01:05,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:01:05 BoogieIcfgContainer [2024-12-02 06:01:05,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:01:05,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:01:05,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:01:05,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:01:05,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:00:54" (1/3) ... [2024-12-02 06:01:05,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd8838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:01:05, skipping insertion in model container [2024-12-02 06:01:05,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:56" (2/3) ... [2024-12-02 06:01:05,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd8838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:01:05, skipping insertion in model container [2024-12-02 06:01:05,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:01:05" (3/3) ... [2024-12-02 06:01:05,895 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness.i [2024-12-02 06:01:05,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:01:05,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_be64_harness.i that has 22 procedures, 237 locations, 1 initial locations, 18 loop locations, and 1 error locations. [2024-12-02 06:01:05,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:01:05,972 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;@676b7e58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:01:05,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:01:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 132 states have (on average 1.2803030303030303) internal successors, (169), 133 states have internal predecessors, (169), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 06:01:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 06:01:05,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:05,988 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:05,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:05,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:05,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1862324011, now seen corresponding path program 1 times [2024-12-02 06:01:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017189556] [2024-12-02 06:01:05,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:02:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 06:02:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:02:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017189556] [2024-12-02 06:02:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017189556] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:27,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214955588] [2024-12-02 06:02:27,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:27,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:27,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:02:27,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:02:27,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:03:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:50,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 7875 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:03:50,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-12-02 06:03:50,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:50,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214955588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:50,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:03:50,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:03:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789296339] [2024-12-02 06:03:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:50,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:03:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:50,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:03:50,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:03:50,138 INFO L87 Difference]: Start difference. First operand has 197 states, 132 states have (on average 1.2803030303030303) internal successors, (169), 133 states have internal predecessors, (169), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 06:03:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:50,174 INFO L93 Difference]: Finished difference Result 387 states and 558 transitions. [2024-12-02 06:03:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:03:50,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2024-12-02 06:03:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:50,184 INFO L225 Difference]: With dead ends: 387 [2024-12-02 06:03:50,184 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 06:03:50,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:03:50,191 INFO L435 NwaCegarLoop]: 267 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, 267 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:50,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:03:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 06:03:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-12-02 06:03:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 128 states have internal predecessors, (162), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-12-02 06:03:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 261 transitions. [2024-12-02 06:03:50,242 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 261 transitions. Word has length 135 [2024-12-02 06:03:50,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:50,244 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 261 transitions. [2024-12-02 06:03:50,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 06:03:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 261 transitions. [2024-12-02 06:03:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 06:03:50,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:50,247 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:50,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:03:50,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:03:50,448 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:50,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1471623593, now seen corresponding path program 1 times [2024-12-02 06:03:50,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096868989] [2024-12-02 06:03:50,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:50,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 06:05:13,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:13,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096868989] [2024-12-02 06:05:13,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096868989] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:05:13,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771490675] [2024-12-02 06:05:13,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:13,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:05:13,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:05:13,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:05:13,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:06:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:38,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 7875 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:06:38,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-12-02 06:06:38,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:06:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771490675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:06:38,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 06:06:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725577133] [2024-12-02 06:06:38,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:38,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:06:38,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:38,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:06:38,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:06:38,696 INFO L87 Difference]: Start difference. First operand 191 states and 261 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 06:06:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:40,446 INFO L93 Difference]: Finished difference Result 358 states and 501 transitions. [2024-12-02 06:06:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:06:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 135 [2024-12-02 06:06:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:40,450 INFO L225 Difference]: With dead ends: 358 [2024-12-02 06:06:40,450 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:06:40,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:06:40,453 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 269 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:40,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 786 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:06:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:06:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-12-02 06:06:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.2713178294573644) internal successors, (164), 131 states have internal predecessors, (164), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (57), 49 states have call predecessors, (57), 49 states have call successors, (57) [2024-12-02 06:06:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 271 transitions. [2024-12-02 06:06:40,477 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 271 transitions. Word has length 135 [2024-12-02 06:06:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:40,478 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 271 transitions. [2024-12-02 06:06:40,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 06:06:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 271 transitions. [2024-12-02 06:06:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 06:06:40,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:40,481 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:06:40,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:06:40,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 06:06:40,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:40,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1422116110, now seen corresponding path program 1 times [2024-12-02 06:06:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469356390] [2024-12-02 06:06:40,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:40,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:08:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:08:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 06:08:04,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:08:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469356390] [2024-12-02 06:08:04,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469356390] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:08:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702269068] [2024-12-02 06:08:04,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:08:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:08:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:08:04,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:08:04,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:09:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:09:29,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 7880 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:09:29,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:09:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 06:09:29,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:09:29,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702269068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:09:29,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:09:29,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 06:09:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340855073] [2024-12-02 06:09:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:09:29,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:09:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:09:29,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:09:29,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:09:29,899 INFO L87 Difference]: Start difference. First operand 194 states and 271 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 06:09:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:09:31,648 INFO L93 Difference]: Finished difference Result 344 states and 482 transitions. [2024-12-02 06:09:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:09:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 137 [2024-12-02 06:09:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:09:31,651 INFO L225 Difference]: With dead ends: 344 [2024-12-02 06:09:31,651 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:09:31,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:09:31,652 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 269 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:09:31,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 790 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 06:09:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:09:31,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-12-02 06:09:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.2713178294573644) internal successors, (164), 131 states have internal predecessors, (164), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2024-12-02 06:09:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 269 transitions. [2024-12-02 06:09:31,673 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 269 transitions. Word has length 137 [2024-12-02 06:09:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:09:31,674 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 269 transitions. [2024-12-02 06:09:31,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 06:09:31,675 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 269 transitions. [2024-12-02 06:09:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 06:09:31,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:09:31,677 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:09:31,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:09:31,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:09:31,878 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:09:31,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:09:31,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2087010509, now seen corresponding path program 2 times [2024-12-02 06:09:31,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:09:31,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639063712] [2024-12-02 06:09:31,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:09:31,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:10:58,353 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:10:58,353 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:11:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-12-02 06:11:01,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:11:01,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639063712] [2024-12-02 06:11:01,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639063712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:11:01,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:11:01,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:11:01,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341357799] [2024-12-02 06:11:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:11:01,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:11:01,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:11:01,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:11:01,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:11:01,407 INFO L87 Difference]: Start difference. First operand 194 states and 269 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-12-02 06:11:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:11:02,571 INFO L93 Difference]: Finished difference Result 338 states and 469 transitions. [2024-12-02 06:11:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:11:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 139 [2024-12-02 06:11:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:11:02,574 INFO L225 Difference]: With dead ends: 338 [2024-12-02 06:11:02,574 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:11:02,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:11:02,576 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 184 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:11:02,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1424 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:11:02,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:11:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-12-02 06:11:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.2713178294573644) internal successors, (164), 131 states have internal predecessors, (164), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-12-02 06:11:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2024-12-02 06:11:02,594 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 139 [2024-12-02 06:11:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:11:02,594 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2024-12-02 06:11:02,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-12-02 06:11:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2024-12-02 06:11:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 06:11:02,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:11:02,597 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:11:02,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:11:02,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:11:02,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:11:02,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2009982628, now seen corresponding path program 1 times [2024-12-02 06:11:02,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:11:02,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382553028] [2024-12-02 06:11:02,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:11:02,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 06:12:26,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:26,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382553028] [2024-12-02 06:12:26,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382553028] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:26,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:26,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:12:26,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528694894] [2024-12-02 06:12:26,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:26,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:12:26,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:26,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:12:26,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:12:26,541 INFO L87 Difference]: Start difference. First operand 194 states and 264 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 06:12:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:27,080 INFO L93 Difference]: Finished difference Result 206 states and 285 transitions. [2024-12-02 06:12:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:12:27,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 145 [2024-12-02 06:12:27,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:27,083 INFO L225 Difference]: With dead ends: 206 [2024-12-02 06:12:27,084 INFO L226 Difference]: Without dead ends: 204 [2024-12-02 06:12:27,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:12:27,085 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 3 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:27,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1786 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:12:27,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-12-02 06:12:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 203. [2024-12-02 06:12:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 135 states have (on average 1.2592592592592593) internal successors, (170), 138 states have internal predecessors, (170), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (61), 50 states have call predecessors, (61), 50 states have call successors, (61) [2024-12-02 06:12:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 282 transitions. [2024-12-02 06:12:27,101 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 282 transitions. Word has length 145 [2024-12-02 06:12:27,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:27,101 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 282 transitions. [2024-12-02 06:12:27,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 06:12:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 282 transitions. [2024-12-02 06:12:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 06:12:27,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:27,103 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:27,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:12:27,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:12:27,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:27,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1424953372, now seen corresponding path program 1 times [2024-12-02 06:12:27,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:27,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906299594] [2024-12-02 06:12:27,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:27,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:13:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:13:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-12-02 06:13:53,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:13:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906299594] [2024-12-02 06:13:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906299594] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:13:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876355691] [2024-12-02 06:13:53,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:13:53,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:13:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:13:53,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:13:53,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:15:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:15:16,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 7912 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-02 06:15:16,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:15:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-12-02 06:15:17,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:15:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876355691] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:15:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:15:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 12 [2024-12-02 06:15:17,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128205682] [2024-12-02 06:15:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:15:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:15:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:15:17,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:15:17,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:15:17,694 INFO L87 Difference]: Start difference. First operand 203 states and 282 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-12-02 06:15:19,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:15:19,175 INFO L93 Difference]: Finished difference Result 390 states and 546 transitions. [2024-12-02 06:15:19,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:15:19,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 149 [2024-12-02 06:15:19,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:15:19,178 INFO L225 Difference]: With dead ends: 390 [2024-12-02 06:15:19,178 INFO L226 Difference]: Without dead ends: 203 [2024-12-02 06:15:19,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:15:19,180 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 2 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:15:19,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2453 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 06:15:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-12-02 06:15:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-12-02 06:15:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 135 states have (on average 1.2518518518518518) internal successors, (169), 138 states have internal predecessors, (169), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (61), 50 states have call predecessors, (61), 50 states have call successors, (61) [2024-12-02 06:15:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 281 transitions. [2024-12-02 06:15:19,200 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 281 transitions. Word has length 149 [2024-12-02 06:15:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:15:19,201 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 281 transitions. [2024-12-02 06:15:19,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-12-02 06:15:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2024-12-02 06:15:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 06:15:19,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:15:19,203 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:15:19,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 06:15:19,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc475a-f6b0-4b6e-aad0-fdc974e921a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:15:19,404 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:15:19,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:15:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash -586976989, now seen corresponding path program 1 times [2024-12-02 06:15:19,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:15:19,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566324873] [2024-12-02 06:15:19,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:15:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms