./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/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_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:44:05,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:44:05,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 11:44:05,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:44:05,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:44:05,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:44:05,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:44:05,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:44:05,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:44:05,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:44:05,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:44:05,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:44:05,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:44:05,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:44:05,424 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:44:05,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:44:05,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:44:05,426 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:05,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:44:05,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:05,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:44:05,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:44:05,428 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_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/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 ! overflow) ) 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 -> 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 [2024-12-02 11:44:05,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:44:05,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:44:05,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:44:05,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:44:05,702 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:44:05,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2024-12-02 11:44:08,375 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/data/1d8446a66/7523f3d81bca4f789c7b41fd3da93e09/FLAG004f053c6 [2024-12-02 11:44:08,792 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:44:08,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2024-12-02 11:44:08,824 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/data/1d8446a66/7523f3d81bca4f789c7b41fd3da93e09/FLAG004f053c6 [2024-12-02 11:44:08,840 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/data/1d8446a66/7523f3d81bca4f789c7b41fd3da93e09 [2024-12-02 11:44:08,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:44:08,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:44:08,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:44:08,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:44:08,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:44:08,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:44:08" (1/1) ... [2024-12-02 11:44:08,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f580ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:08, skipping insertion in model container [2024-12-02 11:44:08,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:44:08" (1/1) ... [2024-12-02 11:44:08,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:44:10,147 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,147 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,148 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,149 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,150 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,166 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,167 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,169 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,169 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:10,935 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:44:11,070 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:44:11,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,112 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,112 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,112 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,113 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,118 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,118 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,119 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,119 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-12-02 11:44:11,215 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,215 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:11,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2024-12-02 11:44:11,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:44:11,447 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:44:11,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11 WrapperNode [2024-12-02 11:44:11,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:44:11,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:44:11,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:44:11,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:44:11,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,587 INFO L138 Inliner]: procedures = 684, calls = 2945, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1209 [2024-12-02 11:44:11,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:44:11,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:44:11,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:44:11,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:44:11,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,729 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [2, 257, 47, 68, 243]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [2, 0, 4, 10, 11]. The 515 writes are split as follows [0, 257, 22, 4, 232]. [2024-12-02 11:44:11,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:44:11,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:44:11,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:44:11,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:44:11,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (1/1) ... [2024-12-02 11:44:11,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:44:11,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:44:11,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-12-02 11:44:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 11:44:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2024-12-02 11:44:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:44:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 11:44:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 11:44:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 11:44:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2024-12-02 11:44:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:44:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-12-02 11:44:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-12-02 11:44:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 11:44:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-12-02 11:44:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2024-12-02 11:44:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:44:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2024-12-02 11:44:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2024-12-02 11:44:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2024-12-02 11:44:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2024-12-02 11:44:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2024-12-02 11:44:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 11:44:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2024-12-02 11:44:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2024-12-02 11:44:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 11:44:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2024-12-02 11:44:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2024-12-02 11:44:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2024-12-02 11:44:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2024-12-02 11:44:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2024-12-02 11:44:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:44:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:44:12,207 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:44:12,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:44:21,980 INFO L? ?]: Removed 228 outVars from TransFormulas that were not future-live. [2024-12-02 11:44:21,981 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:44:22,001 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:44:22,001 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:44:22,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:44:22 BoogieIcfgContainer [2024-12-02 11:44:22,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:44:22,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:44:22,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:44:22,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:44:22,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:44:08" (1/3) ... [2024-12-02 11:44:22,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693dba3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:44:22, skipping insertion in model container [2024-12-02 11:44:22,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:11" (2/3) ... [2024-12-02 11:44:22,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693dba3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:44:22, skipping insertion in model container [2024-12-02 11:44:22,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:44:22" (3/3) ... [2024-12-02 11:44:22,012 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2024-12-02 11:44:22,025 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:44:22,026 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness.i that has 23 procedures, 418 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2024-12-02 11:44:22,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:44:22,104 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;@74216a68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:44:22,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 11:44:22,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 248 states have internal predecessors, (296), 148 states have call successors, (148), 22 states have call predecessors, (148), 22 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-12-02 11:44:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 11:44:22,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:22,118 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:22,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:44:22,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash -200229976, now seen corresponding path program 1 times [2024-12-02 11:44:22,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:44:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236748501] [2024-12-02 11:44:22,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:22,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 11:45:59,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:59,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236748501] [2024-12-02 11:45:59,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236748501] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:45:59,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158846913] [2024-12-02 11:45:59,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:59,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:45:59,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:45:59,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:45:59,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:47:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:36,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 7590 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:47:36,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 11:47:36,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:47:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158846913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:36,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:47:36,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:47:36,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563069489] [2024-12-02 11:47:36,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:36,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:47:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:36,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:47:36,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:36,493 INFO L87 Difference]: Start difference. First operand has 418 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 248 states have internal predecessors, (296), 148 states have call successors, (148), 22 states have call predecessors, (148), 22 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:47:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:36,575 INFO L93 Difference]: Finished difference Result 816 states and 1272 transitions. [2024-12-02 11:47:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:47:36,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2024-12-02 11:47:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:36,587 INFO L225 Difference]: With dead ends: 816 [2024-12-02 11:47:36,587 INFO L226 Difference]: Without dead ends: 399 [2024-12-02 11:47:36,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 11:47:36,595 INFO L435 NwaCegarLoop]: 579 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, 579 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 11:47:36,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:47:36,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-12-02 11:47:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2024-12-02 11:47:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 232 states have (on average 1.1896551724137931) internal successors, (276), 237 states have internal predecessors, (276), 142 states have call successors, (142), 21 states have call predecessors, (142), 21 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-12-02 11:47:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 559 transitions. [2024-12-02 11:47:36,674 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 559 transitions. Word has length 71 [2024-12-02 11:47:36,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:36,675 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 559 transitions. [2024-12-02 11:47:36,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:47:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 559 transitions. [2024-12-02 11:47:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 11:47:36,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:36,678 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:36,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:47:36,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:47:36,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:47:36,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2124563494, now seen corresponding path program 1 times [2024-12-02 11:47:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:36,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868845189] [2024-12-02 11:47:36,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:49:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:49:04,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:49:04,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868845189] [2024-12-02 11:49:04,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868845189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:49:04,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:49:04,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:49:04,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472642069] [2024-12-02 11:49:04,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:49:04,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:49:04,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:49:04,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:49:04,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:49:04,531 INFO L87 Difference]: Start difference. First operand 399 states and 559 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:49:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:49:04,922 INFO L93 Difference]: Finished difference Result 782 states and 1098 transitions. [2024-12-02 11:49:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:49:04,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2024-12-02 11:49:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:49:04,930 INFO L225 Difference]: With dead ends: 782 [2024-12-02 11:49:04,930 INFO L226 Difference]: Without dead ends: 411 [2024-12-02 11:49:04,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:49:04,933 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 15 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:49:04,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2195 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:49:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-12-02 11:49:04,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2024-12-02 11:49:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.1882845188284519) internal successors, (284), 245 states have internal predecessors, (284), 143 states have call successors, (143), 22 states have call predecessors, (143), 23 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2024-12-02 11:49:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 571 transitions. [2024-12-02 11:49:04,968 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 571 transitions. Word has length 71 [2024-12-02 11:49:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:49:04,969 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 571 transitions. [2024-12-02 11:49:04,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:49:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 571 transitions. [2024-12-02 11:49:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 11:49:04,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:49:04,970 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:49:04,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:49:04,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:49:04,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:49:04,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1116699922, now seen corresponding path program 1 times [2024-12-02 11:49:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:49:04,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845560845] [2024-12-02 11:49:04,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:50:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:31,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845560845] [2024-12-02 11:50:31,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845560845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:31,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:31,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:50:31,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654014076] [2024-12-02 11:50:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:31,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:50:31,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:31,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:50:31,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:50:31,591 INFO L87 Difference]: Start difference. First operand 409 states and 571 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:50:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:32,227 INFO L93 Difference]: Finished difference Result 796 states and 1117 transitions. [2024-12-02 11:50:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:50:32,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 72 [2024-12-02 11:50:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:32,232 INFO L225 Difference]: With dead ends: 796 [2024-12-02 11:50:32,232 INFO L226 Difference]: Without dead ends: 415 [2024-12-02 11:50:32,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:50:32,234 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 23 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:32,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2731 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:50:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-02 11:50:32,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 409. [2024-12-02 11:50:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.1882845188284519) internal successors, (284), 245 states have internal predecessors, (284), 143 states have call successors, (143), 22 states have call predecessors, (143), 23 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2024-12-02 11:50:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 571 transitions. [2024-12-02 11:50:32,263 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 571 transitions. Word has length 72 [2024-12-02 11:50:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:32,263 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 571 transitions. [2024-12-02 11:50:32,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:50:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 571 transitions. [2024-12-02 11:50:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 11:50:32,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:32,265 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:32,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:50:32,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:50:32,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:32,266 INFO L85 PathProgramCache]: Analyzing trace with hash 52216866, now seen corresponding path program 1 times [2024-12-02 11:50:32,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:32,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473731760] [2024-12-02 11:50:32,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:32,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:51:56,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:56,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473731760] [2024-12-02 11:51:56,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473731760] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:56,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:56,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:51:56,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933305762] [2024-12-02 11:51:56,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:56,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:51:56,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:56,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:51:56,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:51:56,598 INFO L87 Difference]: Start difference. First operand 409 states and 571 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:51:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:57,227 INFO L93 Difference]: Finished difference Result 796 states and 1117 transitions. [2024-12-02 11:51:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:51:57,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 73 [2024-12-02 11:51:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:57,233 INFO L225 Difference]: With dead ends: 796 [2024-12-02 11:51:57,233 INFO L226 Difference]: Without dead ends: 415 [2024-12-02 11:51:57,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:51:57,236 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 22 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:57,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2731 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:51:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-02 11:51:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 409. [2024-12-02 11:51:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.1882845188284519) internal successors, (284), 245 states have internal predecessors, (284), 143 states have call successors, (143), 22 states have call predecessors, (143), 23 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2024-12-02 11:51:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 571 transitions. [2024-12-02 11:51:57,261 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 571 transitions. Word has length 73 [2024-12-02 11:51:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:57,261 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 571 transitions. [2024-12-02 11:51:57,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:51:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 571 transitions. [2024-12-02 11:51:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 11:51:57,262 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:57,262 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:51:57,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:51:57,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:51:57,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:57,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1527497102, now seen corresponding path program 1 times [2024-12-02 11:51:57,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:57,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514128630] [2024-12-02 11:51:57,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:53:24,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:24,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514128630] [2024-12-02 11:53:24,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514128630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:24,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:24,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:53:24,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122215021] [2024-12-02 11:53:24,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:24,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:53:24,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:24,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:53:24,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:53:24,521 INFO L87 Difference]: Start difference. First operand 409 states and 571 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:53:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:25,208 INFO L93 Difference]: Finished difference Result 794 states and 1113 transitions. [2024-12-02 11:53:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:53:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2024-12-02 11:53:25,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:25,212 INFO L225 Difference]: With dead ends: 794 [2024-12-02 11:53:25,212 INFO L226 Difference]: Without dead ends: 413 [2024-12-02 11:53:25,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:53:25,214 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 21 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:25,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3282 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:53:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-12-02 11:53:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 409. [2024-12-02 11:53:25,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.1882845188284519) internal successors, (284), 245 states have internal predecessors, (284), 143 states have call successors, (143), 22 states have call predecessors, (143), 23 states have return successors, (144), 142 states have call predecessors, (144), 142 states have call successors, (144) [2024-12-02 11:53:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 571 transitions. [2024-12-02 11:53:25,237 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 571 transitions. Word has length 74 [2024-12-02 11:53:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:25,237 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 571 transitions. [2024-12-02 11:53:25,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:53:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 571 transitions. [2024-12-02 11:53:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 11:53:25,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:25,239 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:53:25,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:53:25,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:53:25,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash 131060766, now seen corresponding path program 1 times [2024-12-02 11:53:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:25,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446180805] [2024-12-02 11:53:25,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:25,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:54:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:54:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:54:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:54:52,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446180805] [2024-12-02 11:54:52,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446180805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:54:52,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:54:52,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:54:52,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010836714] [2024-12-02 11:54:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:54:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:54:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:54:52,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:54:52,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:52,375 INFO L87 Difference]: Start difference. First operand 409 states and 571 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:54:52,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:54:52,470 INFO L93 Difference]: Finished difference Result 417 states and 582 transitions. [2024-12-02 11:54:52,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:54:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 75 [2024-12-02 11:54:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:54:52,474 INFO L225 Difference]: With dead ends: 417 [2024-12-02 11:54:52,475 INFO L226 Difference]: Without dead ends: 415 [2024-12-02 11:54:52,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:52,476 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 0 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:54:52,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:54:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-02 11:54:52,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-12-02 11:54:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 244 states have (on average 1.1844262295081966) internal successors, (289), 249 states have internal predecessors, (289), 143 states have call successors, (143), 22 states have call predecessors, (143), 24 states have return successors, (147), 144 states have call predecessors, (147), 142 states have call successors, (147) [2024-12-02 11:54:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 579 transitions. [2024-12-02 11:54:52,498 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 579 transitions. Word has length 75 [2024-12-02 11:54:52,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:54:52,499 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 579 transitions. [2024-12-02 11:54:52,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:54:52,499 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 579 transitions. [2024-12-02 11:54:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 11:54:52,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:54:52,500 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:54:52,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:54:52,500 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:54:52,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:54:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 965667579, now seen corresponding path program 1 times [2024-12-02 11:54:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:54:52,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895004282] [2024-12-02 11:54:52,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:54:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:56:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:56:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 11:56:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:56:17,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895004282] [2024-12-02 11:56:17,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895004282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:56:17,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:56:17,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:56:17,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599674700] [2024-12-02 11:56:17,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:56:17,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:56:17,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:56:17,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:56:17,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:56:17,651 INFO L87 Difference]: Start difference. First operand 415 states and 579 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:56:17,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:56:17,730 INFO L93 Difference]: Finished difference Result 797 states and 1163 transitions. [2024-12-02 11:56:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:56:17,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2024-12-02 11:56:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:56:17,735 INFO L225 Difference]: With dead ends: 797 [2024-12-02 11:56:17,735 INFO L226 Difference]: Without dead ends: 409 [2024-12-02 11:56:17,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:56:17,737 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 0 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:56:17,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1103 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:56:17,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-12-02 11:56:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-12-02 11:56:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 239 states have (on average 1.1799163179916319) internal successors, (282), 244 states have internal predecessors, (282), 143 states have call successors, (143), 22 states have call predecessors, (143), 23 states have return successors, (144), 143 states have call predecessors, (144), 142 states have call successors, (144) [2024-12-02 11:56:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 569 transitions. [2024-12-02 11:56:17,759 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 569 transitions. Word has length 77 [2024-12-02 11:56:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:56:17,760 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 569 transitions. [2024-12-02 11:56:17,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:56:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 569 transitions. [2024-12-02 11:56:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 11:56:17,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:56:17,762 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:56:17,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:56:17,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2024-12-02 11:56:17,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:56:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash -516792885, now seen corresponding path program 1 times [2024-12-02 11:56:17,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:56:17,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680995293] [2024-12-02 11:56:17,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:56:17,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:57:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:57:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 11:57:44,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:57:44,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680995293] [2024-12-02 11:57:44,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680995293] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:57:44,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735873091] [2024-12-02 11:57:44,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:57:44,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:57:44,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:57:44,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:57:44,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7e0b4-e2b9-4931-a47b-94d5c9e8ecda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process