./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl --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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:59,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:59,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:23:59,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:59,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:59,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:59,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:59,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:59,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:59,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:59,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:59,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:59,226 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:59,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:59,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:59,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:59,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:59,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:59,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:59,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:59,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:59,232 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:59,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:59,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:59,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:59,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:59,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:59,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:59,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:59,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:59,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:59,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:59,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:59,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:59,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:59,239 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:59,239 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_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2023-11-12 02:23:59,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:59,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:59,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:59,552 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:59,553 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:59,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2023-11-12 02:24:02,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:24:03,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:24:03,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2023-11-12 02:24:03,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/data/fa470dc8d/c3b3611998fd43dea9b3e18bcc13fc2d/FLAG532687fdb [2023-11-12 02:24:03,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/data/fa470dc8d/c3b3611998fd43dea9b3e18bcc13fc2d [2023-11-12 02:24:03,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:24:03,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:24:03,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:03,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:24:03,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:24:03,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:03" (1/1) ... [2023-11-12 02:24:03,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b612fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:03, skipping insertion in model container [2023-11-12 02:24:03,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:03" (1/1) ... [2023-11-12 02:24:03,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:24:03,914 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_d2645b0a-556b-418c-912b-c5b7576b38c1/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2023-11-12 02:24:03,923 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_d2645b0a-556b-418c-912b-c5b7576b38c1/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2023-11-12 02:24:05,000 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,001 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,002 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,003 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,004 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,018 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,019 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,022 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,024 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,025 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,026 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,408 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:24:05,409 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:24:05,411 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:24:05,412 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:24:05,414 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:24:05,414 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:24:05,415 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:24:05,416 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:24:05,417 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:24:05,418 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:24:05,586 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,593 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:05,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:24:05,723 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_d2645b0a-556b-418c-912b-c5b7576b38c1/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2023-11-12 02:24:05,724 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_d2645b0a-556b-418c-912b-c5b7576b38c1/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2023-11-12 02:24:05,808 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,809 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,810 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,810 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,811 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,819 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,820 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,821 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,822 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,823 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,824 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,825 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,826 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,894 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:24:05,895 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:24:05,896 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:24:05,897 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:24:05,899 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:24:05,900 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:24:05,900 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:24:05,903 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:24:05,904 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:24:05,906 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:24:05,973 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,979 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:24:05,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2023-11-12 02:24:06,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:06,237 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,237 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,238 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,238 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,238 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,238 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,238 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,239 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,240 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,240 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:06,248 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:24:06,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06 WrapperNode [2023-11-12 02:24:06,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:06,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:06,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:24:06,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:24:06,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,426 INFO L138 Inliner]: procedures = 689, calls = 1683, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 593 [2023-11-12 02:24:06,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:06,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:24:06,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:24:06,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:24:06,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:24:06,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:24:06,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:24:06,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:24:06,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (1/1) ... [2023-11-12 02:24:06,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:06,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:06,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:24:06,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:24:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:24:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 02:24:06,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 02:24:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 02:24:06,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 02:24:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 02:24:06,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 02:24:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:24:06,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 02:24:06,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 02:24:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:24:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:24:06,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:24:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:24:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:24:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:24:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:24:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 02:24:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 02:24:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 02:24:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 02:24:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 02:24:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 02:24:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-12 02:24:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-12 02:24:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:24:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:24:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:24:06,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:24:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:24:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 02:24:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 02:24:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 02:24:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 02:24:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:24:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-12 02:24:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-12 02:24:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:24:07,016 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:24:07,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:24:08,115 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:24:08,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:24:08,125 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:24:08,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:08 BoogieIcfgContainer [2023-11-12 02:24:08,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:24:08,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:24:08,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:24:08,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:24:08,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:24:03" (1/3) ... [2023-11-12 02:24:08,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27b039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:08, skipping insertion in model container [2023-11-12 02:24:08,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:06" (2/3) ... [2023-11-12 02:24:08,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27b039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:08, skipping insertion in model container [2023-11-12 02:24:08,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:08" (3/3) ... [2023-11-12 02:24:08,139 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2023-11-12 02:24:08,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:24:08,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:24:08,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:24:08,228 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;@783a1691, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:24:08,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:24:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-12 02:24:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 02:24:08,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:08,249 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:08,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:08,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:08,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1468528252, now seen corresponding path program 1 times [2023-11-12 02:24:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:08,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252420485] [2023-11-12 02:24:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:24:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:24:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:24:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:24:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:24:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-12 02:24:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:24:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-12 02:24:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252420485] [2023-11-12 02:24:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252420485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:09,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:24:09,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083958876] [2023-11-12 02:24:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:09,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:09,350 INFO L87 Difference]: Start difference. First operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:24:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:09,943 INFO L93 Difference]: Finished difference Result 248 states and 337 transitions. [2023-11-12 02:24:09,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2023-11-12 02:24:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:09,963 INFO L225 Difference]: With dead ends: 248 [2023-11-12 02:24:09,963 INFO L226 Difference]: Without dead ends: 123 [2023-11-12 02:24:09,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:09,975 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 41 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:09,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 160 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:24:10,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-12 02:24:10,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2023-11-12 02:24:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-12 02:24:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2023-11-12 02:24:10,091 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2023-11-12 02:24:10,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:10,091 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2023-11-12 02:24:10,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:24:10,092 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2023-11-12 02:24:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 02:24:10,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:10,099 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:10,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:24:10,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:10,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1288118090, now seen corresponding path program 1 times [2023-11-12 02:24:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862495151] [2023-11-12 02:24:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:24:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:24:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:24:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:24:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:24:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-12 02:24:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:24:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-12 02:24:10,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:10,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862495151] [2023-11-12 02:24:10,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862495151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:10,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359245160] [2023-11-12 02:24:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:10,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:10,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:10,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:10,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:24:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:11,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:24:11,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 02:24:11,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:24:11,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359245160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:11,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:24:11,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-11-12 02:24:11,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49451443] [2023-11-12 02:24:11,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:11,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:11,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:11,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:24:11,686 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 02:24:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:11,964 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2023-11-12 02:24:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2023-11-12 02:24:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:11,967 INFO L225 Difference]: With dead ends: 193 [2023-11-12 02:24:11,967 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 02:24:11,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:24:11,970 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:11,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 414 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:24:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 02:24:11,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-12 02:24:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 74 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2023-11-12 02:24:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2023-11-12 02:24:11,991 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2023-11-12 02:24:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2023-11-12 02:24:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 02:24:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2023-11-12 02:24:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 02:24:11,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:11,997 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:12,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:12,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:12,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:12,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1724800482, now seen corresponding path program 1 times [2023-11-12 02:24:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:12,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500248193] [2023-11-12 02:24:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:12,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:12,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:24:12,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528546347] [2023-11-12 02:24:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:12,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:12,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:12,327 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:12,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:24:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:12,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:24:12,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-12 02:24:12,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:24:12,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:12,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500248193] [2023-11-12 02:24:12,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:24:12,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528546347] [2023-11-12 02:24:12,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528546347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:12,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:12,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:24:12,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289462646] [2023-11-12 02:24:12,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:12,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:24:12,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:12,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:24:12,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:24:12,993 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 02:24:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:13,340 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2023-11-12 02:24:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:24:13,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 86 [2023-11-12 02:24:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:13,343 INFO L225 Difference]: With dead ends: 182 [2023-11-12 02:24:13,343 INFO L226 Difference]: Without dead ends: 114 [2023-11-12 02:24:13,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:24:13,345 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 151 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:13,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 591 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:24:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-12 02:24:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-12 02:24:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-12 02:24:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2023-11-12 02:24:13,365 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2023-11-12 02:24:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:13,366 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2023-11-12 02:24:13,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 02:24:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2023-11-12 02:24:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 02:24:13,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:13,369 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:13,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:13,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:13,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:13,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash -146566572, now seen corresponding path program 1 times [2023-11-12 02:24:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070003832] [2023-11-12 02:24:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:13,698 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:24:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951817446] [2023-11-12 02:24:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:13,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:13,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:13,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:13,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2645b0a-556b-418c-912b-c5b7576b38c1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:24:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:14,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 2477 conjuncts, 217 conjunts are in the unsatisfiable core [2023-11-12 02:24:14,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:14,652 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:24:15,129 INFO L322 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2023-11-12 02:24:15,130 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2023-11-12 02:24:19,227 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:24:19,228 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 110 [2023-11-12 02:24:41,154 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))) |c_#memory_int|)) is different from true [2023-11-12 02:24:45,673 INFO L322 Elim1Store]: treesize reduction 114, result has 33.7 percent of original size [2023-11-12 02:24:45,673 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 140 treesize of output 192