./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd --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 f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:12:32,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:12:32,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:12:32,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:12:32,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:12:32,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:12:32,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:12:32,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:12:32,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:12:32,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:12:32,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:12:32,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:12:32,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:12:32,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:12:32,792 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:12:32,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:12:32,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:12:32,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:12:32,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:12:32,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:12:32,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:12:32,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:12:32,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:12:32,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:32,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:12:32,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:12:32,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:12:32,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:12:32,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:12:32,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:12:32,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:12:32,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:12:32,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:12:32,797 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_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd 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 -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2024-11-13 13:12:33,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:12:33,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:12:33,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:12:33,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:12:33,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:12:33,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i Unable to find full path for "g++" [2024-11-13 13:12:35,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:12:35,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:12:35,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2024-11-13 13:12:36,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/data/426bedb16/b510e360d13c43cb9d9defee574fa8bb/FLAGaf620ca01 [2024-11-13 13:12:36,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/data/426bedb16/b510e360d13c43cb9d9defee574fa8bb [2024-11-13 13:12:36,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:12:36,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:12:36,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:36,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:12:36,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:12:36,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:36" (1/1) ... [2024-11-13 13:12:36,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742d3dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:36, skipping insertion in model container [2024-11-13 13:12:36,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:36" (1/1) ... [2024-11-13 13:12:36,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:12:36,471 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_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4493,4506] [2024-11-13 13:12:36,479 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_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4553,4566] [2024-11-13 13:12:37,566 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,567 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,568 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,570 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,573 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,601 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,602 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,604 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,605 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,607 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,609 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,609 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:37,610 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,398 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,399 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,406 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,415 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:38,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:12:38,551 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_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4493,4506] [2024-11-13 13:12:38,551 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_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i[4553,4566] [2024-11-13 13:12:38,694 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,696 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,697 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,713 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,718 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,720 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,720 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,725 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,726 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,726 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,727 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,845 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,849 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,850 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,863 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:12:38,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2024-11-13 13:12:38,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:39,217 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:12:39,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39 WrapperNode [2024-11-13 13:12:39,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:39,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:39,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:12:39,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:12:39,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,422 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 653 [2024-11-13 13:12:39,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:39,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:12:39,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:12:39,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:12:39,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,639 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [39, 238, 2, 5, 3, 6, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [5, 6, 2, 2, 1, 5, 5]. The 238 writes are split as follows [3, 232, 0, 1, 1, 1, 0]. [2024-11-13 13:12:39,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:12:39,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:12:39,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:12:39,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:12:39,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:39,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:39,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:39,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:12:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:12:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-13 13:12:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-13 13:12:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-13 13:12:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-13 13:12:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-13 13:12:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-13 13:12:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-13 13:12:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-13 13:12:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:12:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:12:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-13 13:12:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 13:12:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 13:12:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-13 13:12:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-13 13:12:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-13 13:12:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:12:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:12:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-13 13:12:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-13 13:12:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-13 13:12:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-13 13:12:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:12:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-13 13:12:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 13:12:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-13 13:12:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-13 13:12:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-13 13:12:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:12:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-13 13:12:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 13:12:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 13:12:40,337 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:12:40,339 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:12:46,991 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-13 13:12:46,991 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:12:47,003 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:12:47,004 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:12:47,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:47 BoogieIcfgContainer [2024-11-13 13:12:47,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:12:47,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:12:47,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:12:47,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:12:47,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:12:36" (1/3) ... [2024-11-13 13:12:47,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a9b6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:47, skipping insertion in model container [2024-11-13 13:12:47,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39" (2/3) ... [2024-11-13 13:12:47,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a9b6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:47, skipping insertion in model container [2024-11-13 13:12:47,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:47" (3/3) ... [2024-11-13 13:12:47,015 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2024-11-13 13:12:47,030 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:12:47,032 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness_negated.i that has 16 procedures, 179 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:12:47,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:12:47,117 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;@3c82342c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:12:47,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:12:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-13 13:12:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:12:47,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:47,136 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-13 13:12:47,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:47,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1977188321, now seen corresponding path program 1 times [2024-11-13 13:12:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661887374] [2024-11-13 13:12:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:47,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:56,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:12:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:56,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:12:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:12:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:12:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:12:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:12:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:12:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 13:12:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:12:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 13:12:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:12:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 13:12:57,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:57,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661887374] [2024-11-13 13:12:57,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661887374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:57,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:57,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:12:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618269296] [2024-11-13 13:12:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:57,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:12:57,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:57,556 INFO L87 Difference]: Start difference. First operand has 179 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 102 states have internal predecessors, (118), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 13:13:01,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:13:06,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:13:11,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:11,606 INFO L93 Difference]: Finished difference Result 385 states and 590 transitions. [2024-11-13 13:13:11,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:13:11,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 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 69 [2024-11-13 13:13:11,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:11,618 INFO L225 Difference]: With dead ends: 385 [2024-11-13 13:13:11,619 INFO L226 Difference]: Without dead ends: 208 [2024-11-13 13:13:11,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:13:11,626 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 189 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:11,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 209 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 305 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2024-11-13 13:13:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-13 13:13:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 174. [2024-11-13 13:13:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 98 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 13:13:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2024-11-13 13:13:11,700 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 69 [2024-11-13 13:13:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:11,701 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2024-11-13 13:13:11,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 13:13:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2024-11-13 13:13:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:13:11,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:11,705 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-13 13:13:11,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:13:11,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:11,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:11,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1457561445, now seen corresponding path program 1 times [2024-11-13 13:13:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:11,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869956135] [2024-11-13 13:13:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:11,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:18,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:18,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:13:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:13:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:13:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:13:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:13:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:13:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 13:13:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:13:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 13:13:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:13:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 13:13:19,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869956135] [2024-11-13 13:13:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869956135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212990620] [2024-11-13 13:13:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:19,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:19,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:19,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:19,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:13:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:26,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:13:26,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 13:13:27,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:13:27,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212990620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:27,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:27,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-13 13:13:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841006671] [2024-11-13 13:13:27,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:27,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:13:27,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:13:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:13:27,653 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 13:13:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:30,297 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2024-11-13 13:13:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:13:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-13 13:13:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:30,308 INFO L225 Difference]: With dead ends: 313 [2024-11-13 13:13:30,308 INFO L226 Difference]: Without dead ends: 176 [2024-11-13 13:13:30,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:13:30,310 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 236 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:30,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 663 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:13:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-13 13:13:30,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-13 13:13:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 100 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-13 13:13:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2024-11-13 13:13:30,365 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 69 [2024-11-13 13:13:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:30,365 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2024-11-13 13:13:30,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 13:13:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2024-11-13 13:13:30,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 13:13:30,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:30,368 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:30,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:13:30,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:30,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:30,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1153878233, now seen corresponding path program 1 times [2024-11-13 13:13:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811548212] [2024-11-13 13:13:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:13:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:13:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:13:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:13:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:13:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:13:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:13:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:13:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 13:13:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 13:13:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:39,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:13:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:39,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:13:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 13:13:39,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:39,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811548212] [2024-11-13 13:13:39,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811548212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:39,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512920644] [2024-11-13 13:13:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:39,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:39,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:39,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:13:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:45,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:13:45,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 13:13:46,887 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:13:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512920644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:46,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:46,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-13 13:13:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34423026] [2024-11-13 13:13:46,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:46,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:13:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:13:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:13:46,889 INFO L87 Difference]: Start difference. First operand 176 states and 241 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:13:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:51,211 INFO L93 Difference]: Finished difference Result 324 states and 453 transitions. [2024-11-13 13:13:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:13:51,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-13 13:13:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:51,218 INFO L225 Difference]: With dead ends: 324 [2024-11-13 13:13:51,219 INFO L226 Difference]: Without dead ends: 188 [2024-11-13 13:13:51,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:13:51,222 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 256 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:51,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 988 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 13:13:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-13 13:13:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-13 13:13:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 106 states have internal predecessors, (119), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-13 13:13:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 258 transitions. [2024-11-13 13:13:51,260 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 258 transitions. Word has length 84 [2024-11-13 13:13:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:51,260 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 258 transitions. [2024-11-13 13:13:51,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:13:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2024-11-13 13:13:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 13:13:51,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:51,263 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 13:13:51,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:13:51,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:51,464 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:51,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1339235455, now seen corresponding path program 1 times [2024-11-13 13:13:51,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209605857] [2024-11-13 13:13:51,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:51,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 13:13:59,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723185066] [2024-11-13 13:13:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:59,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:59,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:59,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:59,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4307c0-0549-486a-a5cf-9ff27d3ef0df/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process