./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_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_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/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_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/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_b28206bf-75b1-48f9-9bc9-67d02020c946/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 f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:11:25,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:11:25,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:11:25,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:11:25,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:11:25,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:11:25,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:11:25,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:11:25,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:11:25,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:11:25,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:11:25,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:11:25,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:11:25,235 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:11:25,235 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:11:25,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:11:25,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:11:25,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:11:25,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:11:25,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:11:25,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:11:25,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:11:25,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:11:25,239 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_b28206bf-75b1-48f9-9bc9-67d02020c946/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 -> f4877cca40595980101fbb98f82b1b3f363016b57821c488c5d2a98ecc206f92 [2024-12-02 12:11:25,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:11:25,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:11:25,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:11:25,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:11:25,465 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:11:25,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2024-12-02 12:11:28,183 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/data/214e23cc9/3ba0a0dc4d324721aafeb64af964f026/FLAG813f4d549 [2024-12-02 12:11:28,641 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:11:28,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2024-12-02 12:11:28,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/data/214e23cc9/3ba0a0dc4d324721aafeb64af964f026/FLAG813f4d549 [2024-12-02 12:11:28,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/data/214e23cc9/3ba0a0dc4d324721aafeb64af964f026 [2024-12-02 12:11:28,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:11:28,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:11:28,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:11:28,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:11:28,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:11:28,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:11:28" (1/1) ... [2024-12-02 12:11:28,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515f42d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:28, skipping insertion in model container [2024-12-02 12:11:28,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:11:28" (1/1) ... [2024-12-02 12:11:28,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:11:28,961 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_b28206bf-75b1-48f9-9bc9-67d02020c946/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-12-02 12:11:28,967 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_b28206bf-75b1-48f9-9bc9-67d02020c946/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-12-02 12:11:29,876 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,876 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,877 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,877 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,878 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,891 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,891 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,893 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:29,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,579 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,579 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:11:30,706 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:11:30,720 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_b28206bf-75b1-48f9-9bc9-67d02020c946/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2024-12-02 12:11:30,721 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_b28206bf-75b1-48f9-9bc9-67d02020c946/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2024-12-02 12:11:30,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,765 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,765 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,771 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,772 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-12-02 12:11:30,879 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,880 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:11:30,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-12-02 12:11:30,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:11:31,108 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:11:31,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31 WrapperNode [2024-12-02 12:11:31,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:11:31,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:11:31,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:11:31,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:11:31,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,221 INFO L138 Inliner]: procedures = 680, calls = 2648, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 880 [2024-12-02 12:11:31,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:11:31,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:11:31,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:11:31,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:11:31,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,298 INFO L175 MemorySlicer]: Split 550 memory accesses to 7 slices as follows [2, 257, 238, 6, 38, 4, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 4, 0, 5]. The 494 writes are split as follows [0, 257, 232, 2, 3, 0, 0]. [2024-12-02 12:11:31,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,326 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:11:31,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:11:31,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:11:31,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:11:31,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (1/1) ... [2024-12-02 12:11:31,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:11:31,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:31,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:11:31,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-12-02 12:11:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 12:11:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:11:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-12-02 12:11:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:11:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:11:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-12-02 12:11:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:11:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:11:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 12:11:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:11:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:11:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-12-02 12:11:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-12-02 12:11:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 12:11:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:11:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-12-02 12:11:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:11:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:11:31,684 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:11:31,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:11:39,468 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-12-02 12:11:39,468 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:11:39,481 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:11:39,482 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 12:11:39,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:11:39 BoogieIcfgContainer [2024-12-02 12:11:39,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:11:39,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:11:39,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:11:39,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:11:39,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:11:28" (1/3) ... [2024-12-02 12:11:39,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2c7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:11:39, skipping insertion in model container [2024-12-02 12:11:39,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:11:31" (2/3) ... [2024-12-02 12:11:39,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2c7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:11:39, skipping insertion in model container [2024-12-02 12:11:39,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:11:39" (3/3) ... [2024-12-02 12:11:39,493 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2024-12-02 12:11:39,510 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:11:39,512 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_eq_harness.i that has 12 procedures, 134 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 12:11:39,570 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:11:39,582 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;@81a4f6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:11:39,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:11:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:11:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 12:11:39,598 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:39,599 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:39,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:39,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash -239771141, now seen corresponding path program 1 times [2024-12-02 12:11:39,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:39,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29948869] [2024-12-02 12:11:39,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:16,922 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-12-02 12:13:16,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:16,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29948869] [2024-12-02 12:13:16,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29948869] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:16,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749243085] [2024-12-02 12:13:16,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:16,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:16,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:16,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:16,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:14:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:47,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:14:47,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-12-02 12:14:47,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:14:47,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749243085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:47,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:14:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:14:47,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622082811] [2024-12-02 12:14:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:47,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:14:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:47,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:14:47,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:14:47,828 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 12:14:47,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:47,863 INFO L93 Difference]: Finished difference Result 264 states and 381 transitions. [2024-12-02 12:14:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:14:47,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2024-12-02 12:14:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:47,872 INFO L225 Difference]: With dead ends: 264 [2024-12-02 12:14:47,872 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 12:14:47,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 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 12:14:47,878 INFO L435 NwaCegarLoop]: 178 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, 178 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 12:14:47,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:14:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 12:14:47,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-12-02 12:14:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 77 states have internal predecessors, (92), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:14:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2024-12-02 12:14:47,921 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 102 [2024-12-02 12:14:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:47,922 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2024-12-02 12:14:47,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 12:14:47,923 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2024-12-02 12:14:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 12:14:47,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:47,926 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:47,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:14:48,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:48,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:48,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:48,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1414407603, now seen corresponding path program 1 times [2024-12-02 12:14:48,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:48,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855032383] [2024-12-02 12:14:48,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:48,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:16:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 12:16:18,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:16:18,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855032383] [2024-12-02 12:16:18,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855032383] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:16:18,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198434149] [2024-12-02 12:16:18,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:18,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:18,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:16:18,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:16:18,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:17:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:17:48,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:17:48,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:17:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-02 12:17:48,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:17:48,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198434149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:17:48,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:17:48,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 12:17:48,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323680336] [2024-12-02 12:17:48,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:17:48,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:17:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:17:48,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:17:48,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:17:48,860 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 12:17:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:50,025 INFO L93 Difference]: Finished difference Result 252 states and 341 transitions. [2024-12-02 12:17:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:17:50,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2024-12-02 12:17:50,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:50,028 INFO L225 Difference]: With dead ends: 252 [2024-12-02 12:17:50,028 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 12:17:50,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:17:50,030 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 171 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:50,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 343 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:17:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 12:17:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-12-02 12:17:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2024-12-02 12:17:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 179 transitions. [2024-12-02 12:17:50,049 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 179 transitions. Word has length 102 [2024-12-02 12:17:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:17:50,049 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 179 transitions. [2024-12-02 12:17:50,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 12:17:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 179 transitions. [2024-12-02 12:17:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:17:50,051 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:17:50,051 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:17:50,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:17:50,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:17:50,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:17:50,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:17:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1203101912, now seen corresponding path program 1 times [2024-12-02 12:17:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:17:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112604314] [2024-12-02 12:17:50,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:17:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:19:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-12-02 12:19:21,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112604314] [2024-12-02 12:19:21,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112604314] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:19:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660015549] [2024-12-02 12:19:21,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:21,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:21,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:21,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:19:21,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:20:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:20:50,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 7763 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:20:50,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:20:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 12:20:51,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:20:51,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660015549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:20:51,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:20:51,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 12:20:51,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735706484] [2024-12-02 12:20:51,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:20:51,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:20:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:20:51,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:20:51,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:20:51,671 INFO L87 Difference]: Start difference. First operand 131 states and 179 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 12:20:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:20:53,479 INFO L93 Difference]: Finished difference Result 212 states and 290 transitions. [2024-12-02 12:20:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:20:53,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 104 [2024-12-02 12:20:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:20:53,481 INFO L225 Difference]: With dead ends: 212 [2024-12-02 12:20:53,481 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 12:20:53,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:20:53,482 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 172 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:20:53,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 577 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 12:20:53,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 12:20:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-12-02 12:20:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (43), 39 states have call predecessors, (43), 39 states have call successors, (43) [2024-12-02 12:20:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2024-12-02 12:20:53,492 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 104 [2024-12-02 12:20:53,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:20:53,493 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2024-12-02 12:20:53,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 12:20:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2024-12-02 12:20:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:20:53,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:20:53,494 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:20:53,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 12:20:53,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:20:53,695 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:20:53,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:20:53,695 INFO L85 PathProgramCache]: Analyzing trace with hash -261971038, now seen corresponding path program 2 times [2024-12-02 12:20:53,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:20:53,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24569502] [2024-12-02 12:20:53,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:20:53,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:22:24,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:22:24,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:22:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-12-02 12:22:28,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:22:28,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24569502] [2024-12-02 12:22:28,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24569502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:22:28,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:22:28,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:22:28,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476131607] [2024-12-02 12:22:28,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:22:28,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:22:28,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:22:28,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:22:28,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:22:28,622 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 12:22:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:22:29,080 INFO L93 Difference]: Finished difference Result 143 states and 196 transitions. [2024-12-02 12:22:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:22:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-12-02 12:22:29,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:22:29,083 INFO L225 Difference]: With dead ends: 143 [2024-12-02 12:22:29,083 INFO L226 Difference]: Without dead ends: 141 [2024-12-02 12:22:29,083 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 12:22:29,084 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 3 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:22:29,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1183 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:22:29,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-12-02 12:22:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2024-12-02 12:22:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 87 states have internal predecessors, (100), 41 states have call successors, (41), 12 states have call predecessors, (41), 14 states have return successors, (52), 40 states have call predecessors, (52), 40 states have call successors, (52) [2024-12-02 12:22:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2024-12-02 12:22:29,096 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 108 [2024-12-02 12:22:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:22:29,096 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2024-12-02 12:22:29,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 12:22:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2024-12-02 12:22:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:22:29,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:22:29,098 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:22:29,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:22:29,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:22:29,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:22:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 751320298, now seen corresponding path program 1 times [2024-12-02 12:22:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:22:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352892902] [2024-12-02 12:22:29,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:22:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:23:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 12:24:01,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:01,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352892902] [2024-12-02 12:24:01,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352892902] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:24:01,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294340399] [2024-12-02 12:24:01,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:01,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:24:01,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:24:01,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:24:01,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:25:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:30,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 7785 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:25:30,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:25:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:25:31,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:25:31,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294340399] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:31,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:25:31,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 12:25:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443510729] [2024-12-02 12:25:31,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:31,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:25:31,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:31,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:25:31,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:25:31,317 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 12:25:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:32,717 INFO L93 Difference]: Finished difference Result 245 states and 337 transitions. [2024-12-02 12:25:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:25:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 112 [2024-12-02 12:25:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:32,720 INFO L225 Difference]: With dead ends: 245 [2024-12-02 12:25:32,720 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 12:25:32,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:25:32,721 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 171 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:32,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 464 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:25:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 12:25:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-12-02 12:25:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2024-12-02 12:25:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 186 transitions. [2024-12-02 12:25:32,736 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 186 transitions. Word has length 112 [2024-12-02 12:25:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:32,736 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 186 transitions. [2024-12-02 12:25:32,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 12:25:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 186 transitions. [2024-12-02 12:25:32,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:25:32,738 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:32,738 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:32,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:25:32,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28206bf-75b1-48f9-9bc9-67d02020c946/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:25:32,939 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:25:32,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash -262933041, now seen corresponding path program 1 times [2024-12-02 12:25:32,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:32,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400728930] [2024-12-02 12:25:32,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms