./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_string_eq_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_string_eq_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 e2fe4853cb1b3e71bc40ffc508ef15031942a963e69ef7c7092b9454f87d180b --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:12:21,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:12:21,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:12:21,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:12:21,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:12:21,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:12:21,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:12:21,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:12:21,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:12:21,369 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:12:21,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:12:21,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:12:21,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:12:21,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:12:21,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:12:21,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:12:21,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:12:21,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:12:21,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:12:21,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:12:21,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:12:21,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:12:21,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:12:21,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:12:21,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:12:21,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:12:21,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:12:21,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:12:21,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:12:21,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:12:21,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:12:21,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:12:21,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:12:21,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:12:21,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:12:21,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:12:21,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:12:21,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:12:21,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:12:21,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2fe4853cb1b3e71bc40ffc508ef15031942a963e69ef7c7092b9454f87d180b Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:12:21,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:12:21,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:12:21,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:12:21,660 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:12:21,660 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:12:21,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_string_eq_harness_negated.i [2023-11-23 09:12:23,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:12:23,665 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:12:23,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_harness_negated.i [2023-11-23 09:12:23,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf01e0df/e56fe41d61a44f4f9b8d5d4ed1b97397/FLAG178abb5e8 [2023-11-23 09:12:23,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf01e0df/e56fe41d61a44f4f9b8d5d4ed1b97397 [2023-11-23 09:12:23,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:12:23,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:12:23,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:12:23,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:12:23,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:12:23,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:23" (1/1) ... [2023-11-23 09:12:23,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e494d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:23, skipping insertion in model container [2023-11-23 09:12:23,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:23" (1/1) ... [2023-11-23 09:12:23,835 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:12:24,102 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_string_eq_harness_negated.i[4487,4500] [2023-11-23 09:12:24,110 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_string_eq_harness_negated.i[4547,4560] [2023-11-23 09:12:24,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,903 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,904 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,904 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,905 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,916 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,916 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,918 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:24,918 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,189 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:12:25,190 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:12:25,191 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:12:25,192 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:12:25,193 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:12:25,194 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:12:25,194 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:12:25,195 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:12:25,197 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:12:25,199 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:12:25,425 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,426 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:12:25,472 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:12:25,484 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_string_eq_harness_negated.i[4487,4500] [2023-11-23 09:12:25,485 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_string_eq_harness_negated.i[4547,4560] [2023-11-23 09:12:25,551 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,552 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,552 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,567 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,571 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,573 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,606 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:12:25,606 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:12:25,607 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:12:25,613 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:12:25,614 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:12:25,615 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:12:25,615 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:12:25,616 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:12:25,616 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:12:25,617 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:12:25,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2023-11-23 09:12:25,695 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,696 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:25,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:12:25,911 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,911 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,911 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,911 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,911 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,912 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,913 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,913 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,913 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,913 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,913 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:25,919 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:12:25,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25 WrapperNode [2023-11-23 09:12:25,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:12:25,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:12:25,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:12:25,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:12:25,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,078 INFO L138 Inliner]: procedures = 680, calls = 2275, calls flagged for inlining = 58, calls inlined = 6, statements flattened = 384 [2023-11-23 09:12:26,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:12:26,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:12:26,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:12:26,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:12:26,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:12:26,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:12:26,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:12:26,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:12:26,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (1/1) ... [2023-11-23 09:12:26,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:12:26,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:12:26,209 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 09:12:26,232 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 09:12:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-23 09:12:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-23 09:12:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-23 09:12:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-23 09:12:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 09:12:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:12:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:12:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:12:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:12:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:12:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:12:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:12:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:12:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:12:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-23 09:12:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-23 09:12:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:12:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:12:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:12:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 09:12:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 09:12:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:12:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:12:26,503 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:12:26,506 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:12:26,916 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:12:26,995 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:12:26,996 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 09:12:26,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:26 BoogieIcfgContainer [2023-11-23 09:12:26,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:12:26,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:12:26,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:12:27,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:12:27,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:23" (1/3) ... [2023-11-23 09:12:27,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf7bc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:27, skipping insertion in model container [2023-11-23 09:12:27,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:25" (2/3) ... [2023-11-23 09:12:27,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf7bc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:27, skipping insertion in model container [2023-11-23 09:12:27,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:26" (3/3) ... [2023-11-23 09:12:27,005 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness_negated.i [2023-11-23 09:12:27,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:12:27,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 09:12:27,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:12:27,071 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;@50115cfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:12:27,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 09:12:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 55 states have (on average 1.290909090909091) internal successors, (71), 56 states have internal predecessors, (71), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 09:12:27,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 09:12:27,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:27,083 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 09:12:27,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:27,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:27,088 INFO L85 PathProgramCache]: Analyzing trace with hash -768232337, now seen corresponding path program 1 times [2023-11-23 09:12:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002203692] [2023-11-23 09:12:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:27,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 09:12:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:27,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 09:12:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 09:12:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 09:12:27,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:27,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002203692] [2023-11-23 09:12:27,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002203692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:27,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:27,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 09:12:27,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50372633] [2023-11-23 09:12:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:27,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 09:12:27,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:27,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 09:12:27,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 09:12:27,586 INFO L87 Difference]: Start difference. First operand has 92 states, 55 states have (on average 1.290909090909091) internal successors, (71), 56 states have internal predecessors, (71), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 09:12:27,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:27,657 INFO L93 Difference]: Finished difference Result 180 states and 255 transitions. [2023-11-23 09:12:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 09:12:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-23 09:12:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:27,668 INFO L225 Difference]: With dead ends: 180 [2023-11-23 09:12:27,669 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 09:12:27,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 09:12:27,681 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:27,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 09:12:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 09:12:27,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-23 09:12:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 09:12:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2023-11-23 09:12:27,729 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 32 [2023-11-23 09:12:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:27,730 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2023-11-23 09:12:27,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 09:12:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2023-11-23 09:12:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 09:12:27,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:27,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 09:12:27,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:12:27,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:27,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2061312465, now seen corresponding path program 1 times [2023-11-23 09:12:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301611727] [2023-11-23 09:12:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 09:12:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 09:12:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 09:12:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 09:12:28,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:28,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301611727] [2023-11-23 09:12:28,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301611727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:28,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:28,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:12:28,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341814400] [2023-11-23 09:12:28,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:28,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:12:28,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:12:28,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:12:28,120 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 09:12:28,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:28,221 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2023-11-23 09:12:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 09:12:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-23 09:12:28,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:28,225 INFO L225 Difference]: With dead ends: 145 [2023-11-23 09:12:28,225 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 09:12:28,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:12:28,230 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 10 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 317 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:12:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 09:12:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-23 09:12:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 54 states have internal predecessors, (65), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 09:12:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2023-11-23 09:12:28,247 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 32 [2023-11-23 09:12:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:28,248 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2023-11-23 09:12:28,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 09:12:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2023-11-23 09:12:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 09:12:28,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:28,254 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:12:28,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 09:12:28,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:28,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1241563347, now seen corresponding path program 1 times [2023-11-23 09:12:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414733093] [2023-11-23 09:12:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:28,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 09:12:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:12:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 09:12:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414733093] [2023-11-23 09:12:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414733093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 09:12:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109211774] [2023-11-23 09:12:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:29,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:12:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:12:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:12:29,092 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 09:12:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:29,780 INFO L93 Difference]: Finished difference Result 143 states and 187 transitions. [2023-11-23 09:12:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:12:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 61 [2023-11-23 09:12:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:29,784 INFO L225 Difference]: With dead ends: 143 [2023-11-23 09:12:29,785 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 09:12:29,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:12:29,790 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 59 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:29,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 523 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:12:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 09:12:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-23 09:12:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 54 states have internal predecessors, (64), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 09:12:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2023-11-23 09:12:29,837 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 61 [2023-11-23 09:12:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:29,852 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2023-11-23 09:12:29,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 09:12:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2023-11-23 09:12:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 09:12:29,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:29,854 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:12:29,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 09:12:29,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:29,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1137563729, now seen corresponding path program 1 times [2023-11-23 09:12:29,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:29,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091499470] [2023-11-23 09:12:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:29,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 09:12:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 09:12:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 09:12:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 09:12:30,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:30,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091499470] [2023-11-23 09:12:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091499470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:30,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:30,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 09:12:30,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827849703] [2023-11-23 09:12:30,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:30,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 09:12:30,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 09:12:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:12:30,754 INFO L87 Difference]: Start difference. First operand 89 states and 115 transitions. Second operand has 15 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-23 09:12:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:31,298 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2023-11-23 09:12:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 09:12:31,298 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) Word has length 69 [2023-11-23 09:12:31,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:31,300 INFO L225 Difference]: With dead ends: 154 [2023-11-23 09:12:31,300 INFO L226 Difference]: Without dead ends: 105 [2023-11-23 09:12:31,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-11-23 09:12:31,301 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:31,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 524 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:12:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-23 09:12:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2023-11-23 09:12:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 59 states have internal predecessors, (69), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 09:12:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2023-11-23 09:12:31,316 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 69 [2023-11-23 09:12:31,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:31,317 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2023-11-23 09:12:31,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-23 09:12:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2023-11-23 09:12:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 09:12:31,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:31,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:12:31,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 09:12:31,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:31,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1944111057, now seen corresponding path program 1 times [2023-11-23 09:12:31,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:31,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778950821] [2023-11-23 09:12:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:31,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 09:12:31,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 09:12:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 09:12:31,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 09:12:31,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 09:12:31,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 09:12:31,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 09:12:31,914 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-23 09:12:31,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 09:12:31,947 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,947 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,948 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-23 09:12:31,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-23 09:12:31,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-23 09:12:31,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-23 09:12:31,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-23 09:12:31,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-23 09:12:31,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-23 09:12:31,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-23 09:12:31,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated [2023-11-23 09:12:31,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated [2023-11-23 09:12:31,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:31 BoogieIcfgContainer [2023-11-23 09:12:31,976 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 09:12:31,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 09:12:31,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 09:12:31,977 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 09:12:31,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:26" (3/4) ... [2023-11-23 09:12:31,978 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 09:12:31,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-23 09:12:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-23 09:12:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-23 09:12:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-23 09:12:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-23 09:12:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-23 09:12:31,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-23 09:12:31,991 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-23 09:12:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-23 09:12:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-23 09:12:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-23 09:12:31,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated [2023-11-23 09:12:31,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated [2023-11-23 09:12:32,040 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 09:12:32,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 09:12:32,040 INFO L158 Benchmark]: Toolchain (without parser) took 8309.19ms. Allocated memory was 130.0MB in the beginning and 333.4MB in the end (delta: 203.4MB). Free memory was 85.4MB in the beginning and 172.9MB in the end (delta: -87.6MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,041 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 09:12:32,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2185.88ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 85.4MB in the beginning and 110.7MB in the end (delta: -25.4MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.28ms. Allocated memory is still 180.4MB. Free memory was 110.7MB in the beginning and 101.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,041 INFO L158 Benchmark]: Boogie Preprocessor took 93.73ms. Allocated memory is still 180.4MB. Free memory was 101.3MB in the beginning and 97.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,042 INFO L158 Benchmark]: RCFGBuilder took 823.41ms. Allocated memory is still 180.4MB. Free memory was 97.1MB in the beginning and 101.0MB in the end (delta: -3.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,042 INFO L158 Benchmark]: TraceAbstraction took 4978.29ms. Allocated memory was 180.4MB in the beginning and 333.4MB in the end (delta: 153.1MB). Free memory was 100.0MB in the beginning and 180.3MB in the end (delta: -80.3MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,042 INFO L158 Benchmark]: Witness Printer took 63.22ms. Allocated memory is still 333.4MB. Free memory was 180.3MB in the beginning and 172.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 09:12:32,044 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 102.8MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2185.88ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 85.4MB in the beginning and 110.7MB in the end (delta: -25.4MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 157.28ms. Allocated memory is still 180.4MB. Free memory was 110.7MB in the beginning and 101.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.73ms. Allocated memory is still 180.4MB. Free memory was 101.3MB in the beginning and 97.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 823.41ms. Allocated memory is still 180.4MB. Free memory was 97.1MB in the beginning and 101.0MB in the end (delta: -3.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4978.29ms. Allocated memory was 180.4MB in the beginning and 333.4MB in the end (delta: 153.1MB). Free memory was 100.0MB in the beginning and 180.3MB in the end (delta: -80.3MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Witness Printer took 63.22ms. Allocated memory is still 333.4MB. Free memory was 180.3MB in the beginning and 172.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8556]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret542 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite545 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1310 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret542 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite545 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret1306 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1310 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6855-L6860] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7935-L7947] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; [L8891] CALL aws_string_eq_harness() [L8880] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L8880] RET, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8881] EXPR nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880] CALL, EXPR ensure_string_is_allocated_bounded_length(16) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6790] CALL, EXPR nondet_uint64_t() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L266] return __VERIFIER_nondet_ulong(); [L6790] RET, EXPR nondet_uint64_t() VAL [\old(max_size)=16, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6790] size_t len = nondet_uint64_t(); [L6791] CALL assume_abort_if_not(len < max_size) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6791] RET assume_abort_if_not(len < max_size) VAL [\old(max_size)=16, len=0, max_size=16, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6792] CALL, EXPR ensure_string_is_allocated(len) [L6796] CALL, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(size)=17, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6872-L6874] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=17, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, size=17] [L6875] return malloc(size); [L6796] RET, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L6796] struct aws_string *str = bounded_malloc(sizeof(struct aws_string) + len + 1); [L6799] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L6799] RET, EXPR nondet_bool() VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6799-L6800] EXPR nondet_bool() ? can_fail_allocator() : ((void *)0) VAL [\old(len)=0, len=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6799-L6800] *(struct aws_allocator **)(&str->allocator) = nondet_bool() ? can_fail_allocator() : ((void *)0) [L6802] *(size_t *)(&str->len) = len [L6803] *(uint8_t *)&str->bytes[len] = '\0' [L6804] return str; [L6792] RET, EXPR ensure_string_is_allocated(len) [L6792] return ensure_string_is_allocated(len); [L8880] RET, EXPR ensure_string_is_allocated_bounded_length(16) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8881] EXPR nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8880-L8882] struct aws_string *str_a = nondet_bool() ? ensure_string_is_allocated_bounded_length(16) : ((void *)0) ; [L8883] CALL, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L261] return __VERIFIER_nondet_bool(); [L8883] RET, EXPR nondet_bool() VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str_a={-2:0}] [L8883] EXPR nondet_bool() ? str_a : ensure_string_is_allocated_bounded_length(16) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str_a={-2:0}] [L8883] struct aws_string *str_b = nondet_bool() ? str_a : ensure_string_is_allocated_bounded_length(16); [L8884] CALL, EXPR aws_string_eq(str_a, str_b) [L7382] EXPR !a || aws_string_is_valid(a) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7382] CALL, EXPR aws_string_is_valid(a) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L7382] RET, EXPR aws_string_is_valid(a) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7382] EXPR !a || aws_string_is_valid(a) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7382] CALL assume_abort_if_not((!a || aws_string_is_valid(a))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7382] RET assume_abort_if_not((!a || aws_string_is_valid(a))) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7383] EXPR !b || aws_string_is_valid(b) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7383] CALL, EXPR aws_string_is_valid(b) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) [L6245] EXPR str->len [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 [L6245] EXPR str->len [L6245] EXPR str->bytes[str->len] [L6245] EXPR str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0 VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}, str={-2:0}] [L6245] return str && ((((str->len + 1)) == 0) || ((&str->bytes[0]))) && str->bytes[str->len] == 0; [L7383] RET, EXPR aws_string_is_valid(b) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7383] EXPR !b || aws_string_is_valid(b) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7383] CALL assume_abort_if_not((!b || aws_string_is_valid(b))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7383] RET assume_abort_if_not((!b || aws_string_is_valid(b))) VAL [a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L7384] COND TRUE a == b [L7385-L7387] return 1 ; VAL [\result=1, a={-2:0}, a={-2:0}, b={-2:0}, b={-2:0}, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L8884] RET, EXPR aws_string_eq(str_a, str_b) [L8884] COND TRUE aws_string_eq(str_a, str_b) && str_a && str_b [L8885] EXPR str_a->len [L8885] EXPR str_b->len VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str_a={-2:0}, str_b={-2:0}] [L8885] CALL __VERIFIER_assert(!(str_a->len == str_b->len)) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 1477 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1121 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1332 IncrementalHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 356 mSDtfsCounter, 1332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 32, 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, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 72/72 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 09:12:32,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE