./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71e5927fd394f7ee2b7e12cb164a1e2d1990ce0718c7f1e6f5935ec66026c1b2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:36,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:36,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:29:36,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:36,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:36,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:36,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:36,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:36,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:36,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:36,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:36,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:36,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:36,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:36,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:36,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:36,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:36,779 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:36,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:36,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:36,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:36,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:36,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:36,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:36,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:36,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:36,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:36,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:36,782 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_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71e5927fd394f7ee2b7e12cb164a1e2d1990ce0718c7f1e6f5935ec66026c1b2 [2024-11-28 04:29:37,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:37,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:37,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:37,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:37,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:37,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2024-11-28 04:29:40,107 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/data/03cbc8f65/792c7fe26814432f9adcc2c831a4d866/FLAGbb27f43de [2024-11-28 04:29:40,804 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:40,808 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2024-11-28 04:29:40,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/data/03cbc8f65/792c7fe26814432f9adcc2c831a4d866/FLAGbb27f43de [2024-11-28 04:29:40,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/data/03cbc8f65/792c7fe26814432f9adcc2c831a4d866 [2024-11-28 04:29:40,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:40,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:40,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:40,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:40,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:40,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:40" (1/1) ... [2024-11-28 04:29:40,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59454caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:40, skipping insertion in model container [2024-11-28 04:29:40,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:40" (1/1) ... [2024-11-28 04:29:41,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:41,381 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2024-11-28 04:29:41,390 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2024-11-28 04:29:42,560 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,561 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,562 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,563 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,564 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,580 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,581 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,583 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:42,584 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,512 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,517 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:43,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:43,706 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2024-11-28 04:29:43,706 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2024-11-28 04:29:43,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,798 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,799 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8271] [2024-11-28 04:29:43,991 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:43,992 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:29:44,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8757-8768] [2024-11-28 04:29:44,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:44,302 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:44,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44 WrapperNode [2024-11-28 04:29:44,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:44,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:44,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:44,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:44,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,484 INFO L138 Inliner]: procedures = 679, calls = 2616, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 900 [2024-11-28 04:29:44,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:44,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:44,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:44,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:44,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,509 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,609 INFO L175 MemorySlicer]: Split 557 memory accesses to 6 slices as follows [2, 257, 45, 242, 6, 5]. 46 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 12, 6, 0, 5]. The 495 writes are split as follows [0, 257, 4, 232, 2, 0]. [2024-11-28 04:29:44,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:44,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:44,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:44,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:44,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (1/1) ... [2024-11-28 04:29:44,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:44,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:44,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:44,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-28 04:29:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-28 04:29:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:29:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:29:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:29:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:29:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:29:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2024-11-28 04:29:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:29:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:29:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 04:29:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:29:44,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:29:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:29:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:29:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:29:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:29:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:29:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:29:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~int [2024-11-28 04:29:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~int [2024-11-28 04:29:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:29:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:29:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:29:45,196 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:45,198 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:53,894 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-28 04:29:53,895 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:53,908 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:53,911 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:29:53,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:53 BoogieIcfgContainer [2024-11-28 04:29:53,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:53,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:53,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:53,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:53,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:40" (1/3) ... [2024-11-28 04:29:53,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da1c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:53, skipping insertion in model container [2024-11-28 04:29:53,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:44" (2/3) ... [2024-11-28 04:29:53,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da1c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:53, skipping insertion in model container [2024-11-28 04:29:53,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:53" (3/3) ... [2024-11-28 04:29:53,922 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_trim_pred_harness.i [2024-11-28 04:29:53,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:53,942 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_trim_pred_harness.i that has 9 procedures, 126 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 04:29:54,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:54,036 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;@28ff97ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:54,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:29:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 80 states have internal predecessors, (97), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 04:29:54,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:29:54,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:54,053 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:54,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:54,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash 842401513, now seen corresponding path program 1 times [2024-11-28 04:29:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:54,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120035223] [2024-11-28 04:29:54,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:54,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:31:22,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:22,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120035223] [2024-11-28 04:31:22,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120035223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507063662] [2024-11-28 04:31:22,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:22,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:22,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:22,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:22,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:32:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:55,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 7633 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:32:55,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:32:55,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:55,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507063662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:55,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:55,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:32:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068549008] [2024-11-28 04:32:55,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:55,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:32:55,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:55,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:32:55,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:55,545 INFO L87 Difference]: Start difference. First operand has 126 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 80 states have internal predecessors, (97), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:32:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:55,590 INFO L93 Difference]: Finished difference Result 248 states and 359 transitions. [2024-11-28 04:32:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:32:55,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2024-11-28 04:32:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:55,600 INFO L225 Difference]: With dead ends: 248 [2024-11-28 04:32:55,600 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 04:32:55,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:55,608 INFO L435 NwaCegarLoop]: 167 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, 167 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 [2024-11-28 04:32:55,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 04:32:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-28 04:32:55,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 73 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-28 04:32:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 156 transitions. [2024-11-28 04:32:55,665 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 156 transitions. Word has length 79 [2024-11-28 04:32:55,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:55,665 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 156 transitions. [2024-11-28 04:32:55,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:32:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 156 transitions. [2024-11-28 04:32:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:32:55,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:55,669 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:55,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:55,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:32:55,870 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:55,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1327037190, now seen corresponding path program 1 times [2024-11-28 04:32:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:55,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178102884] [2024-11-28 04:32:55,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:55,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:34:32,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:32,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178102884] [2024-11-28 04:34:32,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178102884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:32,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553906220] [2024-11-28 04:34:32,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:32,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:32,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:32,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:32,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:36:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:08,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 7637 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:36:08,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:36:09,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:09,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553906220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:09,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:09,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:36:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085974987] [2024-11-28 04:36:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:09,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:09,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:09,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:09,719 INFO L87 Difference]: Start difference. First operand 117 states and 156 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:36:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:11,084 INFO L93 Difference]: Finished difference Result 217 states and 302 transitions. [2024-11-28 04:36:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:11,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2024-11-28 04:36:11,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:11,089 INFO L225 Difference]: With dead ends: 217 [2024-11-28 04:36:11,089 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:36:11,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:36:11,091 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 159 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:11,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 301 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:36:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:36:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 04:36:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 74 states have (on average 1.162162162162162) internal successors, (86), 76 states have internal predecessors, (86), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (45), 35 states have call predecessors, (45), 35 states have call successors, (45) [2024-11-28 04:36:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2024-11-28 04:36:11,120 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 81 [2024-11-28 04:36:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:11,120 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-11-28 04:36:11,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:36:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2024-11-28 04:36:11,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:36:11,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:11,123 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:11,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:36:11,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 04:36:11,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:11,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash 976844481, now seen corresponding path program 1 times [2024-11-28 04:36:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:11,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015116721] [2024-11-28 04:36:11,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:37:48,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:48,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015116721] [2024-11-28 04:37:48,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015116721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:48,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945678477] [2024-11-28 04:37:48,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:48,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:48,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:48,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:48,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:39:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:24,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 7642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:39:24,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-28 04:39:25,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:25,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945678477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:25,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:25,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 04:39:25,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58873585] [2024-11-28 04:39:25,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:25,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:39:25,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:25,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:39:25,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:39:25,644 INFO L87 Difference]: Start difference. First operand 120 states and 168 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:39:27,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:27,171 INFO L93 Difference]: Finished difference Result 212 states and 299 transitions. [2024-11-28 04:39:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:39:27,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 83 [2024-11-28 04:39:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:27,175 INFO L225 Difference]: With dead ends: 212 [2024-11-28 04:39:27,177 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:39:27,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:39:27,179 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 174 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:27,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 400 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:39:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:39:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 04:39:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 74 states have (on average 1.162162162162162) internal successors, (86), 76 states have internal predecessors, (86), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (43), 35 states have call predecessors, (43), 35 states have call successors, (43) [2024-11-28 04:39:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 166 transitions. [2024-11-28 04:39:27,199 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 166 transitions. Word has length 83 [2024-11-28 04:39:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:27,199 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 166 transitions. [2024-11-28 04:39:27,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:39:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 166 transitions. [2024-11-28 04:39:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:39:27,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:27,202 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-28 04:39:27,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:39:27,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7e960f-a80a-4034-b828-320f1d051311/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 04:39:27,403 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:27,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:27,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1684474180, now seen corresponding path program 2 times [2024-11-28 04:39:27,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:27,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414772925] [2024-11-28 04:39:27,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:39:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:59,359 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:59,360 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:41:02,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414772925] [2024-11-28 04:41:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414772925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:02,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:41:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54685843] [2024-11-28 04:41:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:02,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:41:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:02,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:41:02,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:41:02,995 INFO L87 Difference]: Start difference. First operand 120 states and 166 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:41:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:04,076 INFO L93 Difference]: Finished difference Result 205 states and 285 transitions. [2024-11-28 04:41:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:41:04,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 85 [2024-11-28 04:41:04,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:04,079 INFO L225 Difference]: With dead ends: 205 [2024-11-28 04:41:04,079 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:41:04,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:41:04,081 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 62 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:04,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 709 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:41:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:41:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 04:41:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 74 states have (on average 1.162162162162162) internal successors, (86), 76 states have internal predecessors, (86), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2024-11-28 04:41:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 164 transitions. [2024-11-28 04:41:04,100 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 164 transitions. Word has length 85 [2024-11-28 04:41:04,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:04,101 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 164 transitions. [2024-11-28 04:41:04,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:41:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 164 transitions. [2024-11-28 04:41:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:41:04,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:04,103 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:04,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:41:04,104 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:04,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:04,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1243875164, now seen corresponding path program 1 times [2024-11-28 04:41:04,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896991395] [2024-11-28 04:41:04,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-28 04:42:39,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:39,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896991395] [2024-11-28 04:42:39,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896991395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:39,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:39,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:42:39,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27316559] [2024-11-28 04:42:39,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:39,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:42:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:39,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:42:39,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:42:39,703 INFO L87 Difference]: Start difference. First operand 120 states and 164 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 04:42:40,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:40,299 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2024-11-28 04:42:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:42:40,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2024-11-28 04:42:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:40,303 INFO L225 Difference]: With dead ends: 132 [2024-11-28 04:42:40,304 INFO L226 Difference]: Without dead ends: 130 [2024-11-28 04:42:40,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:42:40,305 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 3 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:40,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1093 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:42:40,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-28 04:42:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2024-11-28 04:42:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.15) internal successors, (92), 83 states have internal predecessors, (92), 38 states have call successors, (38), 9 states have call predecessors, (38), 10 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) [2024-11-28 04:42:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 184 transitions. [2024-11-28 04:42:40,334 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 184 transitions. Word has length 89 [2024-11-28 04:42:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:40,334 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 184 transitions. [2024-11-28 04:42:40,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 04:42:40,335 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 184 transitions. [2024-11-28 04:42:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:42:40,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:40,337 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:40,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:42:40,337 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:40,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:40,338 INFO L85 PathProgramCache]: Analyzing trace with hash 339127460, now seen corresponding path program 1 times [2024-11-28 04:42:40,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:42:40,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4269222] [2024-11-28 04:42:40,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:40,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:44:22,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:22,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4269222] [2024-11-28 04:44:22,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4269222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:22,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:22,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:44:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479418008] [2024-11-28 04:44:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:22,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:44:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:22,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:44:22,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:44:22,983 INFO L87 Difference]: Start difference. First operand 129 states and 184 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:44:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:27,065 INFO L93 Difference]: Finished difference Result 236 states and 359 transitions. [2024-11-28 04:44:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:44:27,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2024-11-28 04:44:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:27,069 INFO L225 Difference]: With dead ends: 236 [2024-11-28 04:44:27,069 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 04:44:27,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:44:27,071 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 34 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:27,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 898 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:44:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 04:44:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 136. [2024-11-28 04:44:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 88 states have internal predecessors, (98), 41 states have call successors, (41), 9 states have call predecessors, (41), 10 states have return successors, (58), 38 states have call predecessors, (58), 39 states have call successors, (58) [2024-11-28 04:44:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 197 transitions. [2024-11-28 04:44:27,107 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 197 transitions. Word has length 93 [2024-11-28 04:44:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:27,109 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 197 transitions. [2024-11-28 04:44:27,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:44:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 197 transitions. [2024-11-28 04:44:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:44:27,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:27,112 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 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] [2024-11-28 04:44:27,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:44:27,112 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:44:27,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:27,112 INFO L85 PathProgramCache]: Analyzing trace with hash -610524647, now seen corresponding path program 1 times [2024-11-28 04:44:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:27,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080899440] [2024-11-28 04:44:27,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms