./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX --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 70fdf4888600bb48b8cb4af60c2a43959940f60808ef921b3b5f10a980e62d04 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:04:15,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:15,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 16:04:15,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:15,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:15,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:15,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:15,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:15,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:15,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:15,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:15,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:15,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:15,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:15,882 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:15,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:15,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:15,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:04:15,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:15,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:15,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:15,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:15,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:15,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:15,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:15,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:15,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:15,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:15,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:15,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:15,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:15,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:15,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:15,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:04:15,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:04:15,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:15,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:15,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:15,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:15,906 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70fdf4888600bb48b8cb4af60c2a43959940f60808ef921b3b5f10a980e62d04 [2024-11-08 16:04:16,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:16,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:16,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:16,207 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:16,209 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:16,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i Unable to find full path for "g++" [2024-11-08 16:04:18,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:18,878 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:18,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i [2024-11-08 16:04:18,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/data/464a0270f/7f244034dc6f40a5818c5bef10d0ae13/FLAG3da4226ac [2024-11-08 16:04:18,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/data/464a0270f/7f244034dc6f40a5818c5bef10d0ae13 [2024-11-08 16:04:18,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:18,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:18,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:18,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:18,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:18,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:18" (1/1) ... [2024-11-08 16:04:18,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28436162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:18, skipping insertion in model container [2024-11-08 16:04:18,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:18" (1/1) ... [2024-11-08 16:04:19,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:19,451 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_7a99d673-6bf5-41fb-8d6f-37cf13822b20/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i[4501,4514] [2024-11-08 16:04:19,461 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_7a99d673-6bf5-41fb-8d6f-37cf13822b20/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i[4561,4574] [2024-11-08 16:04:20,678 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,679 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,680 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,681 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,683 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,700 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,701 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,703 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:20,704 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,494 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,496 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,644 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,645 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:21,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:21,816 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_7a99d673-6bf5-41fb-8d6f-37cf13822b20/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i[4501,4514] [2024-11-08 16:04:21,821 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_7a99d673-6bf5-41fb-8d6f-37cf13822b20/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness_negated.i[4561,4574] [2024-11-08 16:04:21,870 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,871 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,871 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,872 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,873 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,879 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,880 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,882 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,883 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,994 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:21,994 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:22,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8265] [2024-11-08 16:04:22,039 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:22,040 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-08 16:04:22,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8751-8762] [2024-11-08 16:04:22,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:22,327 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:22,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22 WrapperNode [2024-11-08 16:04:22,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:22,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:22,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:22,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:22,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,528 INFO L138 Inliner]: procedures = 680, calls = 2637, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1079 [2024-11-08 16:04:22,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:22,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:22,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:22,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:22,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,761 INFO L175 MemorySlicer]: Split 595 memory accesses to 9 slices as follows [2, 257, 238, 47, 5, 25, 8, 4, 9]. 43 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 0, 6, 4, 1, 2, 4, 2, 5]. The 497 writes are split as follows [0, 257, 232, 5, 1, 1, 0, 0, 1]. [2024-11-08 16:04:22,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:22,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:22,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:22,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:22,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:22,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:22,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:04:22,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:04:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-08 16:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-08 16:04:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-08 16:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-08 16:04:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:04:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-08 16:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-08 16:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-08 16:04:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-08 16:04:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 16:04:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 16:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-08 16:04:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-08 16:04:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 16:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-08 16:04:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-08 16:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-08 16:04:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-08 16:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 16:04:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 16:04:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-08 16:04:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-08 16:04:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-08 16:04:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-08 16:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-08 16:04:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 16:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-08 16:04:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-08 16:04:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-08 16:04:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-08 16:04:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 16:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:04:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:04:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:04:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 16:04:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 16:04:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 16:04:23,438 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:23,441 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:33,455 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:33,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:33,477 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:33,479 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:04:33,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:33 BoogieIcfgContainer [2024-11-08 16:04:33,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:33,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:33,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:33,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:33,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:18" (1/3) ... [2024-11-08 16:04:33,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ba7486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:33, skipping insertion in model container [2024-11-08 16:04:33,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (2/3) ... [2024-11-08 16:04:33,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ba7486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:33, skipping insertion in model container [2024-11-08 16:04:33,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:33" (3/3) ... [2024-11-08 16:04:33,495 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_dynamic_harness_negated.i [2024-11-08 16:04:33,516 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:33,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:04:33,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:33,640 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;@48198f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:33,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:04:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 157 states have internal predecessors, (193), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 16:04:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 16:04:33,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:33,673 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:33,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:33,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1310874863, now seen corresponding path program 1 times [2024-11-08 16:04:33,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035178831] [2024-11-08 16:04:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:06:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:06:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:06:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:06:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:06:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 16:06:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:06:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:06:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 16:06:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:06:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:06:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 16:06:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:06:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 16:06:38,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:06:38,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035178831] [2024-11-08 16:06:38,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035178831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:06:38,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:06:38,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:06:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130900398] [2024-11-08 16:06:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:06:38,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:06:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:06:38,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:06:38,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:06:38,588 INFO L87 Difference]: Start difference. First operand has 248 states, 156 states have (on average 1.2371794871794872) internal successors, (193), 157 states have internal predecessors, (193), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 16:06:42,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:06:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:06:45,827 INFO L93 Difference]: Finished difference Result 500 states and 722 transitions. [2024-11-08 16:06:45,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:06:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-11-08 16:06:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:06:45,849 INFO L225 Difference]: With dead ends: 500 [2024-11-08 16:06:45,849 INFO L226 Difference]: Without dead ends: 255 [2024-11-08 16:06:45,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:06:45,859 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 116 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:06:45,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 291 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-08 16:06:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-08 16:06:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 243. [2024-11-08 16:06:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 152 states have (on average 1.2171052631578947) internal successors, (185), 153 states have internal predecessors, (185), 72 states have call successors, (72), 18 states have call predecessors, (72), 18 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-08 16:06:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 328 transitions. [2024-11-08 16:06:45,965 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 328 transitions. Word has length 83 [2024-11-08 16:06:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:06:45,965 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 328 transitions. [2024-11-08 16:06:45,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 16:06:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 328 transitions. [2024-11-08 16:06:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 16:06:45,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:06:45,971 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:06:45,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:06:45,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:06:45,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:06:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2100090967, now seen corresponding path program 1 times [2024-11-08 16:06:45,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:06:45,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569998313] [2024-11-08 16:06:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:08:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:08:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:08:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:08:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 16:08:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:08:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:08:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 16:08:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:08:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:08:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 16:08:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:08:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 16:08:46,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569998313] [2024-11-08 16:08:46,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569998313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:08:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955888563] [2024-11-08 16:08:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:46,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:08:46,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:08:46,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:08:46,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:10:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:45,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 7660 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:10:45,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:10:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 16:10:46,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:10:46,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955888563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:46,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:10:46,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-08 16:10:46,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825461442] [2024-11-08 16:10:46,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:46,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:10:46,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:10:46,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:46,931 INFO L87 Difference]: Start difference. First operand 243 states and 328 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 16:10:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:49,972 INFO L93 Difference]: Finished difference Result 478 states and 649 transitions. [2024-11-08 16:10:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:10:49,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 85 [2024-11-08 16:10:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:49,977 INFO L225 Difference]: With dead ends: 478 [2024-11-08 16:10:49,978 INFO L226 Difference]: Without dead ends: 246 [2024-11-08 16:10:49,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:10:49,986 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 350 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:49,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 986 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 16:10:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-08 16:10:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-08 16:10:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 154 states have (on average 1.2142857142857142) internal successors, (187), 156 states have internal predecessors, (187), 72 states have call successors, (72), 18 states have call predecessors, (72), 19 states have return successors, (76), 71 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-08 16:10:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 335 transitions. [2024-11-08 16:10:50,030 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 335 transitions. Word has length 85 [2024-11-08 16:10:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:50,032 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 335 transitions. [2024-11-08 16:10:50,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 16:10:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 335 transitions. [2024-11-08 16:10:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 16:10:50,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:50,039 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:10:50,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:10:50,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:10:50,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:50,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash -676365044, now seen corresponding path program 1 times [2024-11-08 16:10:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043018187] [2024-11-08 16:10:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:12:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:12:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:12:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 16:12:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 16:12:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:12:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 16:12:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:12:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:12:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 16:12:58,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:58,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043018187] [2024-11-08 16:12:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043018187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:58,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342909177] [2024-11-08 16:12:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:58,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:58,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:58,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:15:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:09,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 7677 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:15:09,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:15:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:15:10,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:15:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 16:15:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342909177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:15:12,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:15:12,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-08 16:15:12,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563420649] [2024-11-08 16:15:12,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:15:12,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:15:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:15:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:15:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:15:12,599 INFO L87 Difference]: Start difference. First operand 246 states and 335 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-08 16:15:16,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:15:26,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:15:26,572 INFO L93 Difference]: Finished difference Result 487 states and 664 transitions. [2024-11-08 16:15:26,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:15:26,573 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 91 [2024-11-08 16:15:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:15:26,578 INFO L225 Difference]: With dead ends: 487 [2024-11-08 16:15:26,578 INFO L226 Difference]: Without dead ends: 261 [2024-11-08 16:15:26,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:15:26,581 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 653 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 525 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:15:26,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 445 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 567 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2024-11-08 16:15:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-08 16:15:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 249. [2024-11-08 16:15:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 156 states have (on average 1.2115384615384615) internal successors, (189), 159 states have internal predecessors, (189), 72 states have call successors, (72), 18 states have call predecessors, (72), 20 states have return successors, (81), 71 states have call predecessors, (81), 71 states have call successors, (81) [2024-11-08 16:15:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 342 transitions. [2024-11-08 16:15:26,620 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 342 transitions. Word has length 91 [2024-11-08 16:15:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:15:26,621 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 342 transitions. [2024-11-08 16:15:26,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-08 16:15:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 342 transitions. [2024-11-08 16:15:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:15:26,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:15:26,624 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:15:26,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:15:26,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a99d673-6bf5-41fb-8d6f-37cf13822b20/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:26,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:15:26,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:15:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 438544177, now seen corresponding path program 1 times [2024-11-08 16:15:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:15:26,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305281386] [2024-11-08 16:15:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:15:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:17:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:17:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:17:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:17:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:17:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 16:17:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 16:17:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:17:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:17:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:17:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:17:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:17:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 16:17:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305281386] [2024-11-08 16:17:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305281386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:47,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:17:47,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:17:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168252470] [2024-11-08 16:17:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:47,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:17:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:17:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:17:47,858 INFO L87 Difference]: Start difference. First operand 249 states and 342 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 16:17:52,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:18:01,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:18:01,493 INFO L93 Difference]: Finished difference Result 484 states and 657 transitions. [2024-11-08 16:18:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:18:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 93 [2024-11-08 16:18:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:18:01,498 INFO L225 Difference]: With dead ends: 484 [2024-11-08 16:18:01,498 INFO L226 Difference]: Without dead ends: 258 [2024-11-08 16:18:01,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:18:01,501 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 234 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 129 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:18:01,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 579 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 679 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2024-11-08 16:18:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-08 16:18:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2024-11-08 16:18:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 154 states have (on average 1.2077922077922079) internal successors, (186), 156 states have internal predecessors, (186), 72 states have call successors, (72), 18 states have call predecessors, (72), 19 states have return successors, (76), 71 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-08 16:18:01,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 334 transitions. [2024-11-08 16:18:01,538 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 334 transitions. Word has length 93 [2024-11-08 16:18:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:18:01,539 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 334 transitions. [2024-11-08 16:18:01,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 16:18:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2024-11-08 16:18:01,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:18:01,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:18:01,542 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:01,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:18:01,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:18:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:01,543 INFO L85 PathProgramCache]: Analyzing trace with hash -60853162, now seen corresponding path program 1 times [2024-11-08 16:18:01,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:01,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109077789] [2024-11-08 16:18:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:01,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms