./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_front_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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/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 db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:09:55,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:09:55,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 10:09:55,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:09:55,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:09:55,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:09:55,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:09:55,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:09:55,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:09:55,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:09:55,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:09:55,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:09:55,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:09:55,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:09:55,295 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:09:55,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:09:55,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:09:55,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:55,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:09:55,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:09:55,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:09:55,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:09:55,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:09:55,299 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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/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 -> db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de [2024-12-02 10:09:55,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:09:55,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:09:55,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:09:55,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:09:55,515 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:09:55,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2024-12-02 10:09:58,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/data/96633fdfd/7283c06bcea3414088f71399520eb893/FLAG88ff2c9ac [2024-12-02 10:09:58,638 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:09:58,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2024-12-02 10:09:58,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/data/96633fdfd/7283c06bcea3414088f71399520eb893/FLAG88ff2c9ac [2024-12-02 10:09:58,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/data/96633fdfd/7283c06bcea3414088f71399520eb893 [2024-12-02 10:09:58,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:09:58,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:09:58,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:09:58,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:09:58,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:09:58,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:58" (1/1) ... [2024-12-02 10:09:58,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ff97b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:58, skipping insertion in model container [2024-12-02 10:09:58,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:58" (1/1) ... [2024-12-02 10:09:58,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:09:59,106 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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4494,4507] [2024-12-02 10:09:59,112 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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4554,4567] [2024-12-02 10:09:59,881 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,882 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,882 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,882 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,883 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,895 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,896 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,897 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,898 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,898 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:09:59,899 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,450 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,456 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:10:00,540 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:10:00,552 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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4494,4507] [2024-12-02 10:10:00,553 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_794ca9b7-0d05-4f0f-8cc2-b9e293405377/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4554,4567] [2024-12-02 10:10:00,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,619 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,620 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,621 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,622 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,622 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,623 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,623 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,688 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,692 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 10:10:00,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7767-7778] [2024-12-02 10:10:00,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:10:00,876 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:10:00,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00 WrapperNode [2024-12-02 10:10:00,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:10:00,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:10:00,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:10:00,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:10:00,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:00,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:00,988 INFO L138 Inliner]: procedures = 680, calls = 1682, calls flagged for inlining = 53, calls inlined = 8, statements flattened = 662 [2024-12-02 10:10:00,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:10:00,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:10:00,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:10:00,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:10:00,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:00,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,055 INFO L175 MemorySlicer]: Split 314 memory accesses to 6 slices as follows [238, 3, 2, 56, 9, 6]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 1, 2, 10, 5, 0]. The 239 writes are split as follows [232, 1, 0, 3, 1, 2]. [2024-12-02 10:10:01,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,083 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:10:01,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:10:01,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:10:01,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:10:01,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (1/1) ... [2024-12-02 10:10:01,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:10:01,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:01,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:10:01,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:10:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-12-02 10:10:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-12-02 10:10:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 10:10:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:10:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 10:10:01,173 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 10:10:01,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 10:10:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 10:10:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 10:10:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-12-02 10:10:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-12-02 10:10:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:10:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-12-02 10:10:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 10:10:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 10:10:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 10:10:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-12-02 10:10:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:10:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:10:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:10:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:10:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 10:10:01,447 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:10:01,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:10:07,483 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-12-02 10:10:07,483 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:10:07,497 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:10:07,497 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 10:10:07,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:10:07 BoogieIcfgContainer [2024-12-02 10:10:07,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:10:07,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:10:07,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:10:07,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:10:07,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:58" (1/3) ... [2024-12-02 10:10:07,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4eac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:10:07, skipping insertion in model container [2024-12-02 10:10:07,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:00" (2/3) ... [2024-12-02 10:10:07,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4eac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:10:07, skipping insertion in model container [2024-12-02 10:10:07,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:10:07" (3/3) ... [2024-12-02 10:10:07,507 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_front_harness.i [2024-12-02 10:10:07,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:10:07,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_front_harness.i that has 18 procedures, 188 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:10:07,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:10:07,598 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;@5ec1cd82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:10:07,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:10:07,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 114 states have internal predecessors, (136), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 10:10:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:10:07,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:07,614 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:07,615 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:07,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:07,619 INFO L85 PathProgramCache]: Analyzing trace with hash -910861617, now seen corresponding path program 1 times [2024-12-02 10:10:07,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:07,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882709311] [2024-12-02 10:10:07,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-12-02 10:10:13,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:13,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882709311] [2024-12-02 10:10:13,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882709311] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:13,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396059331] [2024-12-02 10:10:13,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:13,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:13,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:13,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:13,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:10:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:20,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 4247 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:10:20,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-12-02 10:10:20,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:10:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396059331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:20,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:10:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 10:10:20,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472969341] [2024-12-02 10:10:20,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:20,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:10:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:20,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:10:20,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:10:20,082 INFO L87 Difference]: Start difference. First operand has 188 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 114 states have internal predecessors, (136), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 10:10:20,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:20,119 INFO L93 Difference]: Finished difference Result 369 states and 525 transitions. [2024-12-02 10:10:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:10:20,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 129 [2024-12-02 10:10:20,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:20,129 INFO L225 Difference]: With dead ends: 369 [2024-12-02 10:10:20,129 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 10:10:20,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 10:10:20,135 INFO L435 NwaCegarLoop]: 245 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, 245 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 10:10:20,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 10:10:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 10:10:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 107 states have internal predecessors, (123), 56 states have call successors, (56), 17 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:10:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2024-12-02 10:10:20,171 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 129 [2024-12-02 10:10:20,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:20,171 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2024-12-02 10:10:20,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 10:10:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2024-12-02 10:10:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:10:20,173 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:20,174 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:20,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:10:20,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 10:10:20,374 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:20,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash -851831597, now seen corresponding path program 1 times [2024-12-02 10:10:20,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:20,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144627951] [2024-12-02 10:10:20,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:20,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:10:27,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:27,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144627951] [2024-12-02 10:10:27,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144627951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:27,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:27,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:10:27,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997382150] [2024-12-02 10:10:27,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:27,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:10:27,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:27,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:10:27,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:10:27,607 INFO L87 Difference]: Start difference. First operand 179 states and 233 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 10:10:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:27,981 INFO L93 Difference]: Finished difference Result 310 states and 407 transitions. [2024-12-02 10:10:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:10:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2024-12-02 10:10:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:27,985 INFO L225 Difference]: With dead ends: 310 [2024-12-02 10:10:27,985 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 10:10:27,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:10:27,987 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 6 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:27,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1362 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:10:27,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 10:10:28,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2024-12-02 10:10:28,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 115 states have (on average 1.1565217391304348) internal successors, (133), 116 states have internal predecessors, (133), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2024-12-02 10:10:28,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 252 transitions. [2024-12-02 10:10:28,010 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 252 transitions. Word has length 129 [2024-12-02 10:10:28,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:28,011 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 252 transitions. [2024-12-02 10:10:28,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 10:10:28,011 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 252 transitions. [2024-12-02 10:10:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:10:28,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:28,014 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:28,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:10:28,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:28,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash 24187409, now seen corresponding path program 1 times [2024-12-02 10:10:28,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:28,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934882790] [2024-12-02 10:10:28,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:28,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 10:10:35,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:35,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934882790] [2024-12-02 10:10:35,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934882790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:35,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:35,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:10:35,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498635368] [2024-12-02 10:10:35,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:35,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:10:35,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:35,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:10:35,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:10:35,023 INFO L87 Difference]: Start difference. First operand 193 states and 252 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 10:10:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:35,507 INFO L93 Difference]: Finished difference Result 325 states and 430 transitions. [2024-12-02 10:10:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:10:35,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2024-12-02 10:10:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:35,513 INFO L225 Difference]: With dead ends: 325 [2024-12-02 10:10:35,513 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 10:10:35,514 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 10:10:35,514 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 14 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:35,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1673 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:10:35,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 10:10:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 199. [2024-12-02 10:10:35,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 118 states have (on average 1.152542372881356) internal successors, (136), 119 states have internal predecessors, (136), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2024-12-02 10:10:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 261 transitions. [2024-12-02 10:10:35,528 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 261 transitions. Word has length 129 [2024-12-02 10:10:35,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:35,529 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 261 transitions. [2024-12-02 10:10:35,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 10:10:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 261 transitions. [2024-12-02 10:10:35,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 10:10:35,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:35,531 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:35,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:10:35,531 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:35,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:35,531 INFO L85 PathProgramCache]: Analyzing trace with hash -370179377, now seen corresponding path program 1 times [2024-12-02 10:10:35,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:35,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074520228] [2024-12-02 10:10:35,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 10:10:41,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074520228] [2024-12-02 10:10:41,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074520228] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:41,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034177002] [2024-12-02 10:10:41,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:41,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:41,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:41,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:41,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:10:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:47,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 4241 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:10:47,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 10:10:47,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:10:47,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034177002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:47,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:10:47,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-12-02 10:10:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132227219] [2024-12-02 10:10:47,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:47,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:10:47,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:47,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:10:47,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:10:47,879 INFO L87 Difference]: Start difference. First operand 199 states and 261 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 10:10:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:48,583 INFO L93 Difference]: Finished difference Result 312 states and 409 transitions. [2024-12-02 10:10:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:10:48,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2024-12-02 10:10:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:48,587 INFO L225 Difference]: With dead ends: 312 [2024-12-02 10:10:48,587 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 10:10:48,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:10:48,588 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:48,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:10:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 10:10:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 10:10:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 107 states have internal predecessors, (121), 56 states have call successors, (56), 17 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 10:10:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 231 transitions. [2024-12-02 10:10:48,605 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 231 transitions. Word has length 129 [2024-12-02 10:10:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:48,605 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 231 transitions. [2024-12-02 10:10:48,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 10:10:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 231 transitions. [2024-12-02 10:10:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 10:10:48,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:48,607 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:48,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:10:48,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:48,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:48,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash -843960547, now seen corresponding path program 1 times [2024-12-02 10:10:48,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:48,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720899735] [2024-12-02 10:10:48,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:48,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-12-02 10:10:55,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:55,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720899735] [2024-12-02 10:10:55,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720899735] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:55,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199397041] [2024-12-02 10:10:55,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:55,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:55,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:55,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:11:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:01,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 4282 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:11:01,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 10:11:01,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:01,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199397041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:01,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:01,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-12-02 10:11:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571231664] [2024-12-02 10:11:01,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:01,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:11:01,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:01,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:11:01,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:01,563 INFO L87 Difference]: Start difference. First operand 179 states and 231 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 10:11:02,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:02,334 INFO L93 Difference]: Finished difference Result 331 states and 433 transitions. [2024-12-02 10:11:02,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:02,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 140 [2024-12-02 10:11:02,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:02,339 INFO L225 Difference]: With dead ends: 331 [2024-12-02 10:11:02,339 INFO L226 Difference]: Without dead ends: 181 [2024-12-02 10:11:02,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:02,341 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:02,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1038 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:11:02,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-12-02 10:11:02,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-12-02 10:11:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 109 states have internal predecessors, (122), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (61), 54 states have call predecessors, (61), 54 states have call successors, (61) [2024-12-02 10:11:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2024-12-02 10:11:02,357 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 239 transitions. Word has length 140 [2024-12-02 10:11:02,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:02,358 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 239 transitions. [2024-12-02 10:11:02,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 10:11:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 239 transitions. [2024-12-02 10:11:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 10:11:02,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:02,361 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:02,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:11:02,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:02,561 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:11:02,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash -253840225, now seen corresponding path program 1 times [2024-12-02 10:11:02,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:02,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171456872] [2024-12-02 10:11:02,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-12-02 10:11:07,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:07,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171456872] [2024-12-02 10:11:07,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171456872] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:07,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926832037] [2024-12-02 10:11:07,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:07,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:07,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:07,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:07,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:11:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:13,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 4415 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:11:13,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 10:11:14,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926832037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:14,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 10:11:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536760719] [2024-12-02 10:11:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:14,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:11:14,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:14,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:11:14,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:11:14,201 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:11:14,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:14,780 INFO L93 Difference]: Finished difference Result 222 states and 281 transitions. [2024-12-02 10:11:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:11:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 155 [2024-12-02 10:11:14,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:14,782 INFO L225 Difference]: With dead ends: 222 [2024-12-02 10:11:14,782 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:11:14,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:11:14,783 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 87 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:14,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 248 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:11:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:11:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:11:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:11:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:11:14,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-12-02 10:11:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:14,784 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:11:14,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-12-02 10:11:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:11:14,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:11:14,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:11:14,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:11:14,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:14,989 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 10:11:14,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 10:11:17,157 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:11:17,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:11:17 BoogieIcfgContainer [2024-12-02 10:11:17,170 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:11:17,171 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:11:17,171 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:11:17,171 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:11:17,172 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:10:07" (3/4) ... [2024-12-02 10:11:17,174 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 10:11:17,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_array_list_has_allocated_data_member [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_bounded [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_is_valid [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memcpy [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_size_t [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memcpy_impl [2024-12-02 10:11:17,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_list_length [2024-12-02 10:11:17,182 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 10:11:17,192 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 139 nodes and edges [2024-12-02 10:11:17,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-12-02 10:11:17,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-12-02 10:11:17,195 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 10:11:17,196 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 10:11:17,197 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 10:11:17,198 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 10:11:17,199 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:11:17,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:11:17,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 10:11:17,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:11:17,620 INFO L158 Benchmark]: Toolchain (without parser) took 78780.78ms. Allocated memory was 117.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 84.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 937.5MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,621 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:11:17,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2036.34ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 38.9MB in the end (delta: 46.0MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.37ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 67.2MB in the end (delta: -28.3MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,622 INFO L158 Benchmark]: Boogie Preprocessor took 121.99ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 54.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,622 INFO L158 Benchmark]: RCFGBuilder took 6385.40ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 54.9MB in the beginning and 95.3MB in the end (delta: -40.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,622 INFO L158 Benchmark]: TraceAbstraction took 69670.73ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 93.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 768.4MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,622 INFO L158 Benchmark]: Witness Printer took 448.41ms. Allocated memory is still 2.2GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 134.0MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2024-12-02 10:11:17,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 86.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2036.34ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 38.9MB in the end (delta: 46.0MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.37ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 67.2MB in the end (delta: -28.3MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.99ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 54.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 6385.40ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 54.9MB in the beginning and 95.3MB in the end (delta: -40.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * TraceAbstraction took 69670.73ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 93.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 768.4MB. Max. memory is 16.1GB. * Witness Printer took 448.41ms. Allocated memory is still 2.2GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 134.0MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7767]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7767-7778] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 188 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.4s, OverallIterations: 6, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 5396 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4183 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1213 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 589 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=3, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1364 NumberOfCodeBlocks, 1364 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1354 ConstructedInterpolants, 0 QuantifiedInterpolants, 1622 SizeOfPredicates, 2 NumberOfNonLiveVariables, 17185 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2296/2360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7381]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 10:11:17,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_794ca9b7-0d05-4f0f-8cc2-b9e293405377/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE