./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu --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 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:16,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:16,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:37:16,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:16,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:16,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:16,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:16,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:16,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:16,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:16,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:16,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:16,898 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:16,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:16,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:16,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:16,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:16,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:16,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:16,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:16,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:16,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:16,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:16,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:16,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:16,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:16,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:16,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:16,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:16,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:16,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:16,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:16,923 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:16,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:16,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:16,925 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:16,925 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2fe4853cb1b3e71bc40ffc508ef15031942a963e69ef7c7092b9454f87d180b [2023-11-19 07:37:17,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:17,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:17,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:17,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:17,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:17,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i [2023-11-19 07:37:20,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:20,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:20,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i [2023-11-19 07:37:21,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/data/0bc23204d/361f1122c9784706b2e8ad41b287fae5/FLAG4dc342a12 [2023-11-19 07:37:21,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/data/0bc23204d/361f1122c9784706b2e8ad41b287fae5 [2023-11-19 07:37:21,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:21,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:21,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:21,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:21,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:21,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:21" (1/1) ... [2023-11-19 07:37:21,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3fb928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:21, skipping insertion in model container [2023-11-19 07:37:21,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:21" (1/1) ... [2023-11-19 07:37:21,213 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:21,517 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4487,4500] [2023-11-19 07:37:21,526 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4547,4560] [2023-11-19 07:37:22,872 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,873 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,874 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,875 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,876 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,895 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,896 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,898 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:22,899 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:23,545 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-19 07:37:23,547 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-19 07:37:23,548 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-19 07:37:23,550 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-19 07:37:23,551 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-19 07:37:23,552 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-19 07:37:23,553 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-19 07:37:23,554 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-19 07:37:23,555 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-19 07:37:23,556 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-19 07:37:24,047 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,048 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:24,113 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:24,127 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4487,4500] [2023-11-19 07:37:24,127 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4547,4560] [2023-11-19 07:37:24,164 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,164 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,165 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,166 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,166 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,177 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,178 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,179 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,180 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,232 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-19 07:37:24,234 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-19 07:37:24,235 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-19 07:37:24,241 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-19 07:37:24,242 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-19 07:37:24,245 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-19 07:37:24,247 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-19 07:37:24,250 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-19 07:37:24,251 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-19 07:37:24,255 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-19 07:37:24,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2023-11-19 07:37:24,377 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,377 WARN L1588 CHandler]: Possible shadowing of function index [2023-11-19 07:37:24,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:24,738 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,739 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,739 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,740 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,741 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,741 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,742 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,742 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,742 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,742 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,742 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,743 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,743 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,743 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,744 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,744 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,744 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:24,752 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:24,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24 WrapperNode [2023-11-19 07:37:24,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:24,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:24,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:24,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:24,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:24,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,003 INFO L138 Inliner]: procedures = 680, calls = 2275, calls flagged for inlining = 58, calls inlined = 6, statements flattened = 384 [2023-11-19 07:37:25,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:25,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:25,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:25,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:25,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:25,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:25,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:25,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:25,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (1/1) ... [2023-11-19 07:37:25,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:25,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:25,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-19 07:37:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-19 07:37:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-19 07:37:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-19 07:37:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:37:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-19 07:37:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-19 07:37:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:37:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:37:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:37:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:37:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-19 07:37:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-19 07:37:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:37:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:37:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-19 07:37:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-19 07:37:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:37:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-19 07:37:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-19 07:37:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-19 07:37:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-19 07:37:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:25,514 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:25,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:26,061 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:26,071 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:26,071 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:37:26,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:26 BoogieIcfgContainer [2023-11-19 07:37:26,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:26,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:26,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:26,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:26,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:21" (1/3) ... [2023-11-19 07:37:26,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e930b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:26, skipping insertion in model container [2023-11-19 07:37:26,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:24" (2/3) ... [2023-11-19 07:37:26,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e930b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:26, skipping insertion in model container [2023-11-19 07:37:26,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:26" (3/3) ... [2023-11-19 07:37:26,087 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness_negated.i [2023-11-19 07:37:26,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:26,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:26,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:26,174 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;@3f1210c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:26,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 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) [2023-11-19 07:37:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:37:26,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:26,196 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:37:26,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:26,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1135633648, now seen corresponding path program 1 times [2023-11-19 07:37:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067778328] [2023-11-19 07:37:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:37:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:37:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:37:26,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067778328] [2023-11-19 07:37:26,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067778328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:26,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:26,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:26,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207872715] [2023-11-19 07:37:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:26,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:26,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:26,839 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-19 07:37:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:26,885 INFO L93 Difference]: Finished difference Result 199 states and 274 transitions. [2023-11-19 07:37:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:26,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 35 [2023-11-19 07:37:26,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:26,896 INFO L225 Difference]: With dead ends: 199 [2023-11-19 07:37:26,897 INFO L226 Difference]: Without dead ends: 97 [2023-11-19 07:37:26,906 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 [2023-11-19 07:37:26,920 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:26,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-19 07:37:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-19 07:37:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 62 states have internal predecessors, (74), 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) [2023-11-19 07:37:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2023-11-19 07:37:26,972 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 35 [2023-11-19 07:37:26,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:26,974 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2023-11-19 07:37:26,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-19 07:37:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2023-11-19 07:37:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:37:26,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:26,987 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-19 07:37:26,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:26,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:26,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash -157446480, now seen corresponding path program 1 times [2023-11-19 07:37:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773301000] [2023-11-19 07:37:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:37:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:37:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:37:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:37:27,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:27,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773301000] [2023-11-19 07:37:27,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773301000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:27,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:27,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:27,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892994599] [2023-11-19 07:37:27,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:27,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:27,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:27,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:27,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:27,534 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-19 07:37:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:27,614 INFO L93 Difference]: Finished difference Result 155 states and 202 transitions. [2023-11-19 07:37:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 35 [2023-11-19 07:37:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:27,617 INFO L225 Difference]: With dead ends: 155 [2023-11-19 07:37:27,617 INFO L226 Difference]: Without dead ends: 97 [2023-11-19 07:37:27,618 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 [2023-11-19 07:37:27,620 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 10 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:27,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 360 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-19 07:37:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-19 07:37:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 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) [2023-11-19 07:37:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 124 transitions. [2023-11-19 07:37:27,639 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 124 transitions. Word has length 35 [2023-11-19 07:37:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:27,640 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 124 transitions. [2023-11-19 07:37:27,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-19 07:37:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 124 transitions. [2023-11-19 07:37:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:37:27,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:27,644 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:27,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:27,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:27,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -798036876, now seen corresponding path program 1 times [2023-11-19 07:37:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671491440] [2023-11-19 07:37:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:37:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:37:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:37:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:37:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:37:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 07:37:28,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671491440] [2023-11-19 07:37:28,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671491440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:28,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:28,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-19 07:37:28,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907647516] [2023-11-19 07:37:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:28,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:37:28,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:37:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:37:28,818 INFO L87 Difference]: Start difference. First operand 97 states and 124 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 07:37:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:29,772 INFO L93 Difference]: Finished difference Result 164 states and 214 transitions. [2023-11-19 07:37:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:37:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 69 [2023-11-19 07:37:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:29,776 INFO L225 Difference]: With dead ends: 164 [2023-11-19 07:37:29,776 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 07:37:29,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:37:29,779 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 124 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:29,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 665 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:37:29,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 07:37:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2023-11-19 07:37:29,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 66 states have (on average 1.196969696969697) internal successors, (79), 67 states have internal predecessors, (79), 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) [2023-11-19 07:37:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2023-11-19 07:37:29,799 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 69 [2023-11-19 07:37:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:29,799 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2023-11-19 07:37:29,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 11 states have internal predecessors, (35), 5 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-19 07:37:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2023-11-19 07:37:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:37:29,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:29,804 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:29,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:29,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:29,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1866451885, now seen corresponding path program 1 times [2023-11-19 07:37:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:29,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693465864] [2023-11-19 07:37:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:29,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:37:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:37:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:37:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:37:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:37:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:37:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:37:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:37:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:37:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 07:37:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:30,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693465864] [2023-11-19 07:37:30,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693465864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:30,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:30,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:37:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466256886] [2023-11-19 07:37:30,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:30,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:37:30,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:30,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:37:30,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:37:30,681 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-19 07:37:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:31,275 INFO L93 Difference]: Finished difference Result 163 states and 211 transitions. [2023-11-19 07:37:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:37:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 78 [2023-11-19 07:37:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:31,278 INFO L225 Difference]: With dead ends: 163 [2023-11-19 07:37:31,278 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 07:37:31,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:37:31,280 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 98 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:31,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 588 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:37:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 07:37:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-19 07:37:31,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 67 states have internal predecessors, (77), 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) [2023-11-19 07:37:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2023-11-19 07:37:31,295 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 78 [2023-11-19 07:37:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:31,296 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2023-11-19 07:37:31,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-19 07:37:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2023-11-19 07:37:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:37:31,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:31,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:31,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:31,301 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:31,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -94866408, now seen corresponding path program 1 times [2023-11-19 07:37:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157951078] [2023-11-19 07:37:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:31,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:31,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:31,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:31,888 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:37:31,889 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:37:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:31,896 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:37:31,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:37:31,963 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:31,964 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:31,964 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-19 07:37:31,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-19 07:37:31,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 07:37:31,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 07:37:31,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-19 07:37:31,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 07:37:31,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:31,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:31,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-19 07:37:31,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 07:37:31,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 07:37:31,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 07:37:31,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-19 07:37:31,978 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:31,979 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:31,979 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:31,980 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 07:37:31,980 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 07:37:31,980 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 07:37:31,981 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:31,981 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:31,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:31,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:31,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:31,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:31,984 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:31,984 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:31,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:31,985 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:31,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:31,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 07:37:31,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 07:37:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 07:37:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:31,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:31,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:31,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:31,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:31,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:31,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:31,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated [2023-11-19 07:37:31,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated [2023-11-19 07:37:32,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:32 BoogieIcfgContainer [2023-11-19 07:37:32,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:37:32,019 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:32,019 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:32,020 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:32,020 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:26" (3/4) ... [2023-11-19 07:37:32,022 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:37:32,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:32,036 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:32,036 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret540 could not be translated [2023-11-19 07:37:32,037 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret542 [2023-11-19 07:37:32,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 07:37:32,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite545 [2023-11-19 07:37:32,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret543 could not be translated [2023-11-19 07:37:32,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 07:37:32,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:32,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret1306 [2023-11-19 07:37:32,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1305 could not be translated [2023-11-19 07:37:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1307 [2023-11-19 07:37:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 07:37:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1308 could not be translated [2023-11-19 07:37:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite1310 [2023-11-19 07:37:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 07:37:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 07:37:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 07:37:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret683 could not be translated [2023-11-19 07:37:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short684 could not be translated [2023-11-19 07:37:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short474 could not be translated [2023-11-19 07:37:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem473 could not be translated [2023-11-19 07:37:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem472 could not be translated [2023-11-19 07:37:32,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short471 could not be translated [2023-11-19 07:37:32,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem470 could not be translated [2023-11-19 07:37:32,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:32,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:32,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:32,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:32,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short686 could not be translated [2023-11-19 07:37:32,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret685 could not be translated [2023-11-19 07:37:32,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1312 could not be translated [2023-11-19 07:37:32,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1313 could not be translated [2023-11-19 07:37:32,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:37:32,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:32,112 INFO L158 Benchmark]: Toolchain (without parser) took 11061.51ms. Allocated memory was 157.3MB in the beginning and 245.4MB in the end (delta: 88.1MB). Free memory was 120.3MB in the beginning and 116.4MB in the end (delta: 3.9MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,113 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:32,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3698.85ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 120.3MB in the beginning and 144.2MB in the end (delta: -23.9MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 247.62ms. Allocated memory is still 203.4MB. Free memory was 144.2MB in the beginning and 134.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,114 INFO L158 Benchmark]: Boogie Preprocessor took 110.23ms. Allocated memory is still 203.4MB. Free memory was 134.7MB in the beginning and 130.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,114 INFO L158 Benchmark]: RCFGBuilder took 962.25ms. Allocated memory is still 203.4MB. Free memory was 129.5MB in the beginning and 88.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,115 INFO L158 Benchmark]: TraceAbstraction took 5938.47ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 88.6MB in the beginning and 123.7MB in the end (delta: -35.1MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,115 INFO L158 Benchmark]: Witness Printer took 93.06ms. Allocated memory is still 245.4MB. Free memory was 122.7MB in the beginning and 116.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:37:32,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3698.85ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 120.3MB in the beginning and 144.2MB in the end (delta: -23.9MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 247.62ms. Allocated memory is still 203.4MB. Free memory was 144.2MB in the beginning and 134.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.23ms. Allocated memory is still 203.4MB. Free memory was 134.7MB in the beginning and 130.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 962.25ms. Allocated memory is still 203.4MB. Free memory was 129.5MB in the beginning and 88.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5938.47ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 88.6MB in the beginning and 123.7MB in the end (delta: -35.1MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. * Witness Printer took 93.06ms. Allocated memory is still 245.4MB. Free memory was 122.7MB in the beginning and 116.4MB in the end (delta: 6.3MB). 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: IdentifierExpression #t~ret543 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite545 - 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~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~mem472 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~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~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~short686 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~mem472 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~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: IdentifierExpression #t~ret1305 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite1307 - 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~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~mem472 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~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~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~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~mem472 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~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~mem1312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1313 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}; VAL [s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}] [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=1, 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)=18, 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)=18, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, size=18] [L6875] return malloc(size); [L6796] RET, EXPR bounded_malloc(sizeof(struct aws_string) + len + 1) VAL [\old(len)=1, len=1, 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)=1, len=1, 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)=1, len=1, 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; VAL [\old(len)=1, \result={-2:0}, len=1, s_can_fail_allocator_static={4:0}, s_tolower_table={5:0}, str={-2:0}] [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, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 1744 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1343 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1495 IncrementalHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 401 mSDtfsCounter, 1495 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=3, InterpolantAutomatonStates: 33, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 80/80 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! [2023-11-19 07:37:32,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f03d65-6b23-41bb-8e96-3fad9e4133b5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE