./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e2301b0ad8c0a2894a947641f0d78dd5062c9cc62f8190d0267e0cfb25211681 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 08:53:15,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 08:53:15,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 08:53:15,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 08:53:15,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 08:53:15,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 08:53:15,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 08:53:15,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 08:53:15,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 08:53:15,627 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 08:53:15,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 08:53:15,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 08:53:15,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 08:53:15,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 08:53:15,630 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 08:53:15,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 08:53:15,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 08:53:15,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 08:53:15,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 08:53:15,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 08:53:15,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 08:53:15,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 08:53:15,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 08:53:15,632 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 08:53:15,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 08:53:15,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 08:53:15,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 08:53:15,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 08:53:15,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:53:15,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 08:53:15,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 08:53:15,636 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 08:53:15,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 08:53:15,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 08:53:15,636 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2301b0ad8c0a2894a947641f0d78dd5062c9cc62f8190d0267e0cfb25211681 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 08:53:15,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 08:53:15,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 08:53:15,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 08:53:15,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 08:53:15,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 08:53:15,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i [2023-11-23 08:53:17,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 08:53:17,425 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 08:53:17,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i [2023-11-23 08:53:17,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a81a5fbc/46909345581f4c2db399e8d084cf5255/FLAG98c1cebf8 [2023-11-23 08:53:17,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a81a5fbc/46909345581f4c2db399e8d084cf5255 [2023-11-23 08:53:17,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 08:53:17,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 08:53:17,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 08:53:17,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 08:53:17,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 08:53:17,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:53:17" (1/1) ... [2023-11-23 08:53:17,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137693eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:17, skipping insertion in model container [2023-11-23 08:53:17,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:53:17" (1/1) ... [2023-11-23 08:53:17,568 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 08:53:17,730 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i[4500,4513] [2023-11-23 08:53:17,736 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i[4560,4573] [2023-11-23 08:53:18,155 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,157 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,157 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,170 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,174 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,178 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,178 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,382 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:53:18,383 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:53:18,384 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:53:18,390 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:53:18,391 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:53:18,392 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:53:18,392 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:53:18,392 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:53:18,393 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:53:18,393 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:53:18,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:53:18,518 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 08:53:18,527 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i[4500,4513] [2023-11-23 08:53:18,528 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_push_front_harness_negated.i[4560,4573] [2023-11-23 08:53:18,549 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,550 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,550 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,550 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,551 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,558 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,559 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,559 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:53:18,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:53:18,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:53:18,583 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:53:18,584 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:53:18,584 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:53:18,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:53:18,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:53:18,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:53:18,586 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:53:18,586 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:53:18,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:53:18,752 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,753 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,754 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:53:18,760 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:53:18,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18 WrapperNode [2023-11-23 08:53:18,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:53:18,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:53:18,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:53:18,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:53:18,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,832 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 151 [2023-11-23 08:53:18,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:53:18,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:53:18,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:53:18,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:53:18,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:53:18,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:53:18,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:53:18,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:53:18,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (1/1) ... [2023-11-23 08:53:18,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:53:18,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:53:18,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 08:53:19,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 08:53:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:53:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:53:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-23 08:53:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-23 08:53:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:53:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2023-11-23 08:53:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2023-11-23 08:53:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:53:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:53:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:53:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:53:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:53:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:53:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:53:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 08:53:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 08:53:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-23 08:53:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-23 08:53:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:53:19,331 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:53:19,334 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:53:19,599 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:53:19,633 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:53:19,633 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 08:53:19,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:53:19 BoogieIcfgContainer [2023-11-23 08:53:19,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:53:19,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:53:19,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:53:19,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:53:19,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:53:17" (1/3) ... [2023-11-23 08:53:19,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43db9f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:53:19, skipping insertion in model container [2023-11-23 08:53:19,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:53:18" (2/3) ... [2023-11-23 08:53:19,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43db9f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:53:19, skipping insertion in model container [2023-11-23 08:53:19,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:53:19" (3/3) ... [2023-11-23 08:53:19,640 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness_negated.i [2023-11-23 08:53:19,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:53:19,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 08:53:19,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:53:19,695 INFO L357 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, mHoare=true, 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;@126a9bd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:53:19,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 08:53:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-23 08:53:19,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 08:53:19,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:19,706 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:19,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:19,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1914549228, now seen corresponding path program 1 times [2023-11-23 08:53:19,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776487309] [2023-11-23 08:53:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:19,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 08:53:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 08:53:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:53:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:53:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:53:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 08:53:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 08:53:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 08:53:20,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:20,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776487309] [2023-11-23 08:53:20,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776487309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:20,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:53:20,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 08:53:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687030306] [2023-11-23 08:53:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:20,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 08:53:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 08:53:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 08:53:20,343 INFO L87 Difference]: Start difference. First operand has 93 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:53:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:20,420 INFO L93 Difference]: Finished difference Result 184 states and 282 transitions. [2023-11-23 08:53:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:53:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2023-11-23 08:53:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:20,428 INFO L225 Difference]: With dead ends: 184 [2023-11-23 08:53:20,429 INFO L226 Difference]: Without dead ends: 95 [2023-11-23 08:53:20,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:53:20,434 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 3 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:20,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 340 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 08:53:20,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-23 08:53:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2023-11-23 08:53:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 59 states have internal predecessors, (73), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 08:53:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2023-11-23 08:53:20,469 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 128 transitions. Word has length 69 [2023-11-23 08:53:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:20,470 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 128 transitions. [2023-11-23 08:53:20,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:53:20,470 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 128 transitions. [2023-11-23 08:53:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 08:53:20,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:20,473 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:20,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 08:53:20,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:20,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash -765365912, now seen corresponding path program 1 times [2023-11-23 08:53:20,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081401748] [2023-11-23 08:53:20,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:20,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 08:53:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 08:53:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:53:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:53:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:53:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 08:53:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 08:53:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 08:53:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081401748] [2023-11-23 08:53:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081401748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:53:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927214971] [2023-11-23 08:53:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:20,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:53:20,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:53:20,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:53:20,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 08:53:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:21,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-23 08:53:21,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:53:21,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 08:53:21,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-23 08:53:21,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2023-11-23 08:53:21,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:21,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 38 [2023-11-23 08:53:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 08:53:21,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:53:21,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927214971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:21,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:53:21,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2023-11-23 08:53:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083978669] [2023-11-23 08:53:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:21,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 08:53:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:21,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 08:53:21,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-23 08:53:21,866 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:23,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:53:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:24,725 INFO L93 Difference]: Finished difference Result 240 states and 326 transitions. [2023-11-23 08:53:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 08:53:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 69 [2023-11-23 08:53:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:24,728 INFO L225 Difference]: With dead ends: 240 [2023-11-23 08:53:24,728 INFO L226 Difference]: Without dead ends: 151 [2023-11-23 08:53:24,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-23 08:53:24,730 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:24,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 558 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 266 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 08:53:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-23 08:53:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 146. [2023-11-23 08:53:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 100 states have internal predecessors, (127), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-23 08:53:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 198 transitions. [2023-11-23 08:53:24,748 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 198 transitions. Word has length 69 [2023-11-23 08:53:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:24,748 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 198 transitions. [2023-11-23 08:53:24,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 198 transitions. [2023-11-23 08:53:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 08:53:24,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:24,750 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:24,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 08:53:24,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:53:24,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:24,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1099090257, now seen corresponding path program 1 times [2023-11-23 08:53:24,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:24,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647169735] [2023-11-23 08:53:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-23 08:53:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 08:53:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 08:53:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:53:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 08:53:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 08:53:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 08:53:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,217 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 08:53:25,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:25,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647169735] [2023-11-23 08:53:25,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647169735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:53:25,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308960643] [2023-11-23 08:53:25,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:25,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:53:25,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:53:25,238 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:53:25,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 08:53:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:25,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-23 08:53:25,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:53:25,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-11-23 08:53:25,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-11-23 08:53:25,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2023-11-23 08:53:25,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:25,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 08:53:25,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2023-11-23 08:53:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:25,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 08:53:25,637 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2023-11-23 08:53:25,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 119 [2023-11-23 08:53:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:25,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:25,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2023-11-23 08:53:25,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:25,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18 [2023-11-23 08:53:25,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-11-23 08:53:25,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2023-11-23 08:53:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 08:53:26,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:53:26,341 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.offset| 8))) (and (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_383 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_383))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset|))) |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_385 Int) (v_ArrVal_382 (Array Int Int))) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_382))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_385))) |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) .cse2) 0)))) is different from false [2023-11-23 08:53:26,379 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.offset| 8))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| 1)) (forall ((v_ArrVal_385 Int) (v_ArrVal_382 (Array Int Int))) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| v_ArrVal_382))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_385))) |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) .cse2) 0)))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| 1)) (forall ((v_ArrVal_383 (Array Int Int)) (v_subst_1 Int)) (= (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| 0)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_20| v_ArrVal_383))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_subst_1))) |c_ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) .cse2) 0)))))) is different from false [2023-11-23 08:53:26,452 INFO L349 Elim1Store]: treesize reduction 88, result has 44.7 percent of original size [2023-11-23 08:53:26,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 242 treesize of output 228 [2023-11-23 08:53:26,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 08:53:26,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 153 [2023-11-23 08:53:26,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 120 [2023-11-23 08:53:26,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-23 08:53:26,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 08:53:26,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 155 [2023-11-23 08:53:26,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 08:53:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:53:26,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 08:53:26,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 46 [2023-11-23 08:53:26,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2023-11-23 08:53:26,720 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 08:53:26,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 08:53:26,725 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 08:53:26,742 INFO L349 Elim1Store]: treesize reduction 16, result has 44.8 percent of original size [2023-11-23 08:53:26,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 41 [2023-11-23 08:53:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 1 not checked. [2023-11-23 08:53:26,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308960643] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:53:26,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 08:53:26,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 23 [2023-11-23 08:53:26,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681732979] [2023-11-23 08:53:26,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 08:53:26,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 08:53:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:26,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 08:53:26,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=363, Unknown=2, NotChecked=78, Total=506 [2023-11-23 08:53:26,822 INFO L87 Difference]: Start difference. First operand 146 states and 198 transitions. Second operand has 23 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-23 08:53:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:28,931 INFO L93 Difference]: Finished difference Result 337 states and 459 transitions. [2023-11-23 08:53:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 08:53:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) Word has length 70 [2023-11-23 08:53:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:28,934 INFO L225 Difference]: With dead ends: 337 [2023-11-23 08:53:28,934 INFO L226 Difference]: Without dead ends: 214 [2023-11-23 08:53:28,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=186, Invalid=1152, Unknown=2, NotChecked=142, Total=1482 [2023-11-23 08:53:28,939 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 151 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 347 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:28,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1899 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1054 Invalid, 0 Unknown, 347 Unchecked, 1.5s Time] [2023-11-23 08:53:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-23 08:53:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2023-11-23 08:53:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 98 states have internal predecessors, (122), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (37), 33 states have call predecessors, (37), 35 states have call successors, (37) [2023-11-23 08:53:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 195 transitions. [2023-11-23 08:53:28,953 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 195 transitions. Word has length 70 [2023-11-23 08:53:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:28,953 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 195 transitions. [2023-11-23 08:53:28,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 7 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (22), 5 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-23 08:53:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 195 transitions. [2023-11-23 08:53:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 08:53:28,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:28,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:28,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 08:53:29,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 08:53:29,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:29,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1713490392, now seen corresponding path program 1 times [2023-11-23 08:53:29,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:29,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708990561] [2023-11-23 08:53:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 08:53:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 08:53:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 08:53:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 08:53:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:53:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 08:53:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 08:53:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 08:53:29,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:29,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708990561] [2023-11-23 08:53:29,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708990561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:53:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812911209] [2023-11-23 08:53:29,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:29,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:53:29,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:53:29,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:53:29,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 08:53:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:29,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 08:53:29,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:53:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 08:53:29,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:53:29,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812911209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:29,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:53:29,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-11-23 08:53:29,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981502082] [2023-11-23 08:53:29,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:29,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 08:53:29,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:29,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 08:53:29,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:53:29,670 INFO L87 Difference]: Start difference. First operand 144 states and 195 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:29,760 INFO L93 Difference]: Finished difference Result 256 states and 347 transitions. [2023-11-23 08:53:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:53:29,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 71 [2023-11-23 08:53:29,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:29,761 INFO L225 Difference]: With dead ends: 256 [2023-11-23 08:53:29,761 INFO L226 Difference]: Without dead ends: 147 [2023-11-23 08:53:29,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 08:53:29,762 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 4 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:29,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 652 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:53:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-23 08:53:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2023-11-23 08:53:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 99 states have internal predecessors, (121), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (37), 33 states have call predecessors, (37), 35 states have call successors, (37) [2023-11-23 08:53:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2023-11-23 08:53:29,788 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 71 [2023-11-23 08:53:29,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:29,788 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2023-11-23 08:53:29,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2023-11-23 08:53:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 08:53:29,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:29,792 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:29,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 08:53:29,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:53:29,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:29,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1881529045, now seen corresponding path program 1 times [2023-11-23 08:53:29,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:29,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026196412] [2023-11-23 08:53:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 08:53:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 08:53:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 08:53:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 08:53:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:53:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:53:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 08:53:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 08:53:30,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:30,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026196412] [2023-11-23 08:53:30,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026196412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:30,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:53:30,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 08:53:30,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279170802] [2023-11-23 08:53:30,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:30,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 08:53:30,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:30,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 08:53:30,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 08:53:30,217 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:30,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:30,315 INFO L93 Difference]: Finished difference Result 289 states and 392 transitions. [2023-11-23 08:53:30,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:53:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-23 08:53:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:30,317 INFO L225 Difference]: With dead ends: 289 [2023-11-23 08:53:30,317 INFO L226 Difference]: Without dead ends: 160 [2023-11-23 08:53:30,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 08:53:30,318 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 34 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:30,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 602 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:53:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-23 08:53:30,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2023-11-23 08:53:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 104 states have (on average 1.2692307692307692) internal successors, (132), 107 states have internal predecessors, (132), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (37), 33 states have call predecessors, (37), 35 states have call successors, (37) [2023-11-23 08:53:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 205 transitions. [2023-11-23 08:53:30,357 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 205 transitions. Word has length 73 [2023-11-23 08:53:30,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:30,357 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 205 transitions. [2023-11-23 08:53:30,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 205 transitions. [2023-11-23 08:53:30,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 08:53:30,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:30,363 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:30,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 08:53:30,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:30,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1979709165, now seen corresponding path program 1 times [2023-11-23 08:53:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059525298] [2023-11-23 08:53:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:30,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 08:53:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 08:53:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 08:53:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 08:53:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:53:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:53:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 08:53:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 08:53:30,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059525298] [2023-11-23 08:53:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059525298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:30,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:53:30,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 08:53:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100635020] [2023-11-23 08:53:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:30,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:53:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:53:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:53:30,564 INFO L87 Difference]: Start difference. First operand 153 states and 205 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:30,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:30,648 INFO L93 Difference]: Finished difference Result 299 states and 405 transitions. [2023-11-23 08:53:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 08:53:30,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-23 08:53:30,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:30,649 INFO L225 Difference]: With dead ends: 299 [2023-11-23 08:53:30,650 INFO L226 Difference]: Without dead ends: 164 [2023-11-23 08:53:30,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:53:30,651 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 34 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:30,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 539 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:53:30,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-23 08:53:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 153. [2023-11-23 08:53:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 104 states have (on average 1.25) internal successors, (130), 107 states have internal predecessors, (130), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (37), 33 states have call predecessors, (37), 35 states have call successors, (37) [2023-11-23 08:53:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 203 transitions. [2023-11-23 08:53:30,661 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 203 transitions. Word has length 73 [2023-11-23 08:53:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:30,661 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 203 transitions. [2023-11-23 08:53:30,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 08:53:30,661 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 203 transitions. [2023-11-23 08:53:30,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 08:53:30,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:53:30,662 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:30,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 08:53:30,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:53:30,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:53:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash 982785009, now seen corresponding path program 1 times [2023-11-23 08:53:30,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:53:30,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449962607] [2023-11-23 08:53:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:53:30,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:53:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:53:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:53:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:53:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:53:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 08:53:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 08:53:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 08:53:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 08:53:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 08:53:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:53:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-23 08:53:30,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:53:30,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449962607] [2023-11-23 08:53:30,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449962607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:53:30,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:53:30,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 08:53:30,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437922932] [2023-11-23 08:53:30,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:53:30,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 08:53:30,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:53:30,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 08:53:30,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 08:53:30,792 INFO L87 Difference]: Start difference. First operand 153 states and 203 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:53:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:53:30,824 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2023-11-23 08:53:30,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:53:30,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2023-11-23 08:53:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:53:30,825 INFO L225 Difference]: With dead ends: 183 [2023-11-23 08:53:30,825 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 08:53:30,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:53:30,826 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 08:53:30,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 71 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 08:53:30,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 08:53:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 08:53:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 08:53:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 08:53:30,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2023-11-23 08:53:30,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:53:30,827 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 08:53:30,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:53:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 08:53:30,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 08:53:30,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 08:53:30,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 08:53:30,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4715 4719) the Hoare annotation is: true [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2023-11-23 08:53:30,970 INFO L899 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4726 4730) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L902 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2023-11-23 08:53:30,971 INFO L899 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4909 4924) the Hoare annotation is: true [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L7356-2(line 7356) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4986(line 4986) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L7356-1(line 7356) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L7356(line 7356) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4982(line 4982) the Hoare annotation is: (and (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (not (= |ULTIMATE.start_aws_linked_list_push_front_~list#1.base| 0))) [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L4986-1(line 4986) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4982-1(line 4982) the Hoare annotation is: (= |ULTIMATE.start_aws_linked_list_push_front_#t~ret409#1| 0) [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L4982-2(line 4982) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4987(line 4987) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4987-1(line 4987) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L7357-1(line 7357) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L7357(line 7357) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L4983(lines 4983 4985) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L4983-1(lines 4983 4985) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L4987-2(line 4987) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L7358(line 7358) the Hoare annotation is: false [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L6755-4(lines 6755 6762) no Hoare annotation was computed. [2023-11-23 08:53:30,972 INFO L895 garLoopResultBuilder]: At program point L6755-3(lines 6755 6762) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 0) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (= 0 |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.offset|) (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|)) [2023-11-23 08:53:30,972 INFO L899 garLoopResultBuilder]: For program point L4988-1(line 4988) no Hoare annotation was computed. [2023-11-23 08:53:30,973 INFO L895 garLoopResultBuilder]: At program point L7354(line 7354) the Hoare annotation is: false [2023-11-23 08:53:30,973 INFO L895 garLoopResultBuilder]: At program point L4988(line 4988) the Hoare annotation is: false [2023-11-23 08:53:30,973 INFO L899 garLoopResultBuilder]: For program point L7358-1(line 7358) no Hoare annotation was computed. [2023-11-23 08:53:30,973 INFO L899 garLoopResultBuilder]: For program point L6743-1(line 6743) no Hoare annotation was computed. [2023-11-23 08:53:30,973 INFO L895 garLoopResultBuilder]: At program point L6743(line 6743) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 0) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (= 0 |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.offset|) (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|)) [2023-11-23 08:53:30,973 INFO L899 garLoopResultBuilder]: For program point L7354-2(line 7354) no Hoare annotation was computed. [2023-11-23 08:53:30,973 INFO L895 garLoopResultBuilder]: At program point L7354-1(line 7354) the Hoare annotation is: false [2023-11-23 08:53:30,973 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L895 garLoopResultBuilder]: At program point L7355-1(line 7355) the Hoare annotation is: false [2023-11-23 08:53:30,974 INFO L895 garLoopResultBuilder]: At program point L7355(line 7355) the Hoare annotation is: false [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L6744-1(line 6744) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L895 garLoopResultBuilder]: At program point L6744(line 6744) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 0) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (= 0 |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.offset|) (= |ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base|)) [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L7355-2(line 7355) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L895 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: false [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2023-11-23 08:53:30,974 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2023-11-23 08:53:30,975 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_valid_deep_returnLabel#1(lines 4731 4765) no Hoare annotation was computed. [2023-11-23 08:53:30,975 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4691 4708) the Hoare annotation is: true [2023-11-23 08:53:30,975 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2023-11-23 08:53:30,975 INFO L899 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2023-11-23 08:53:30,975 INFO L895 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: false [2023-11-23 08:53:30,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:53:30,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 08:53:30,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~list!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-23 08:53:30,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~list!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-23 08:53:30,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:53:30 BoogieIcfgContainer [2023-11-23 08:53:30,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 08:53:30,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 08:53:30,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 08:53:30,999 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 08:53:31,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:53:19" (3/4) ... [2023-11-23 08:53:31,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 08:53:31,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2023-11-23 08:53:31,015 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-23 08:53:31,016 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 08:53:31,016 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 08:53:31,016 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 08:53:31,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 08:53:31,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-23 08:53:31,107 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 08:53:31,108 INFO L158 Benchmark]: Toolchain (without parser) took 13630.95ms. Allocated memory was 176.2MB in the beginning and 482.3MB in the end (delta: 306.2MB). Free memory was 98.3MB in the beginning and 204.5MB in the end (delta: -106.2MB). Peak memory consumption was 201.4MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,108 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 08:53:31,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1282.85ms. Allocated memory is still 176.2MB. Free memory was 98.1MB in the beginning and 97.7MB in the end (delta: 401.1kB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.57ms. Allocated memory is still 176.2MB. Free memory was 97.7MB in the beginning and 92.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,108 INFO L158 Benchmark]: Boogie Preprocessor took 67.60ms. Allocated memory is still 176.2MB. Free memory was 92.4MB in the beginning and 89.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,108 INFO L158 Benchmark]: RCFGBuilder took 729.79ms. Allocated memory was 176.2MB in the beginning and 283.1MB in the end (delta: 107.0MB). Free memory was 89.1MB in the beginning and 227.0MB in the end (delta: -137.9MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,109 INFO L158 Benchmark]: TraceAbstraction took 11363.45ms. Allocated memory was 283.1MB in the beginning and 482.3MB in the end (delta: 199.2MB). Free memory was 227.0MB in the beginning and 212.9MB in the end (delta: 14.1MB). Peak memory consumption was 213.3MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,109 INFO L158 Benchmark]: Witness Printer took 108.27ms. Allocated memory is still 482.3MB. Free memory was 212.9MB in the beginning and 204.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 08:53:31,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1282.85ms. Allocated memory is still 176.2MB. Free memory was 98.1MB in the beginning and 97.7MB in the end (delta: 401.1kB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.57ms. Allocated memory is still 176.2MB. Free memory was 97.7MB in the beginning and 92.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.60ms. Allocated memory is still 176.2MB. Free memory was 92.4MB in the beginning and 89.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 729.79ms. Allocated memory was 176.2MB in the beginning and 283.1MB in the end (delta: 107.0MB). Free memory was 89.1MB in the beginning and 227.0MB in the end (delta: -137.9MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11363.45ms. Allocated memory was 283.1MB in the beginning and 482.3MB in the end (delta: 199.2MB). Free memory was 227.0MB in the beginning and 212.9MB in the end (delta: 14.1MB). Peak memory consumption was 213.3MB. Max. memory is 16.1GB. * Witness Printer took 108.27ms. Allocated memory is still 482.3MB. Free memory was 212.9MB in the beginning and 204.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~list!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~list!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 4661 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 347 IncrementalHoareTripleChecker+Unchecked, 3942 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1656 IncrementalHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 719 mSDtfsCounter, 1656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=5, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 96 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 387 PreInvPairs, 396 NumberOfFragments, 101 HoareAnnotationTreeSize, 387 FomulaSimplifications, 313 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 1080 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 769 ConstructedInterpolants, 25 QuantifiedInterpolants, 3705 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1324 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 483/512 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6755]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 4750]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-23 08:53:31,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE