./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 0e0057cc 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:48:06,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:48:06,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 17:48:06,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:48:06,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:48:06,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:48:06,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:48:06,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:48:06,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:48:06,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:48:06,574 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:48:06,575 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:48:06,575 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:48:06,576 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:48:06,576 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:48:06,577 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:48:06,577 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:48:06,578 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:48:06,578 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:48:06,579 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:48:06,579 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:48:06,580 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:48:06,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:48:06,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:48:06,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:48:06,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:48:06,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:48:06,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:48:06,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:48:06,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:48:06,584 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:48:06,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:48:06,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:48:06,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:48:06,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:48:06,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:48:06,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:48:06,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:48:06,586 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:48:06,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:48:06,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:48:06,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:48:06,587 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:48:06,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:48:06,587 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2023-12-02 17:48:06,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:48:06,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:48:06,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:48:06,834 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:48:06,835 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:48:06,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2023-12-02 17:48:09,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:48:10,033 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:48:10,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2023-12-02 17:48:10,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/data/a74c43257/c8f1ced9b2cf4fc9abb498d8dad02503/FLAG936ad8c48 [2023-12-02 17:48:10,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/data/a74c43257/c8f1ced9b2cf4fc9abb498d8dad02503 [2023-12-02 17:48:10,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:48:10,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:48:10,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:48:10,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:48:10,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:48:10,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:48:10" (1/1) ... [2023-12-02 17:48:10,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fbba4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:10, skipping insertion in model container [2023-12-02 17:48:10,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:48:10" (1/1) ... [2023-12-02 17:48:10,241 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:48:10,497 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2023-12-02 17:48:10,504 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2023-12-02 17:48:11,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,367 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,368 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,372 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,766 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 17:48:11,768 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 17:48:11,769 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 17:48:11,770 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 17:48:11,772 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 17:48:11,772 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 17:48:11,773 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 17:48:11,774 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 17:48:11,774 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 17:48:11,775 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 17:48:11,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:11,951 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:48:12,042 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:48:12,057 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2023-12-02 17:48:12,058 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_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2023-12-02 17:48:12,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,116 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,117 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,124 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,124 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,125 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,126 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,128 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,128 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,129 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,166 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 17:48:12,167 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 17:48:12,169 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 17:48:12,169 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 17:48:12,170 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 17:48:12,171 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 17:48:12,172 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 17:48:12,172 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 17:48:12,173 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 17:48:12,173 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 17:48:12,202 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:48:12,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2023-12-02 17:48:12,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:48:12,443 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,443 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,443 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,444 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,445 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,445 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,445 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,445 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:48:12,452 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:48:12,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12 WrapperNode [2023-12-02 17:48:12,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:48:12,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:48:12,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:48:12,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:48:12,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,600 INFO L138 Inliner]: procedures = 689, calls = 1683, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 593 [2023-12-02 17:48:12,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:48:12,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:48:12,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:48:12,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:48:12,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:48:12,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:48:12,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:48:12,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:48:12,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (1/1) ... [2023-12-02 17:48:12,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:48:12,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:12,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:48:12,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:48:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:48:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-12-02 17:48:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-12-02 17:48:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-12-02 17:48:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-12-02 17:48:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 17:48:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 17:48:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:48:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 17:48:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 17:48:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:48:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:48:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 17:48:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 17:48:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 17:48:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 17:48:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-12-02 17:48:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-12-02 17:48:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-12-02 17:48:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-12-02 17:48:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:48:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:48:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 17:48:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-12-02 17:48:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:48:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-12-02 17:48:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-12-02 17:48:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:48:12,987 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:48:12,989 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:48:13,748 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:48:13,910 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:48:13,910 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 17:48:13,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:48:13 BoogieIcfgContainer [2023-12-02 17:48:13,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:48:13,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:48:13,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:48:13,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:48:13,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:48:10" (1/3) ... [2023-12-02 17:48:13,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b72a38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:48:13, skipping insertion in model container [2023-12-02 17:48:13,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:48:12" (2/3) ... [2023-12-02 17:48:13,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b72a38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:48:13, skipping insertion in model container [2023-12-02 17:48:13,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:48:13" (3/3) ... [2023-12-02 17:48:13,920 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2023-12-02 17:48:13,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:48:13,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:48:13,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:48:13,995 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=FINITE_AUTOMATA, 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;@4bad5057, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:48:13,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:48:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 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) [2023-12-02 17:48:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 17:48:14,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:14,012 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 17:48:14,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:14,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1482441866, now seen corresponding path program 1 times [2023-12-02 17:48:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214883796] [2023-12-02 17:48:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:14,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:48:14,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:48:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214883796] [2023-12-02 17:48:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214883796] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:48:14,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824847484] [2023-12-02 17:48:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:14,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:14,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:14,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:14,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:48:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:15,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:48:15,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:48:15,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:48:15,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824847484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:48:15,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:48:15,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-12-02 17:48:15,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253136566] [2023-12-02 17:48:15,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:48:15,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:48:15,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:48:15,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:48:15,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:48:15,495 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 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 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-12-02 17:48:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:48:15,804 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2023-12-02 17:48:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:48:15,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 56 [2023-12-02 17:48:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:48:15,817 INFO L225 Difference]: With dead ends: 169 [2023-12-02 17:48:15,818 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 17:48:15,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:48:15,825 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 22 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:48:15,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 359 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:48:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 17:48:15,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-02 17:48:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 53 states have internal predecessors, (57), 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) [2023-12-02 17:48:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2023-12-02 17:48:15,877 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 56 [2023-12-02 17:48:15,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:48:15,878 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2023-12-02 17:48:15,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-12-02 17:48:15,879 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2023-12-02 17:48:15,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 17:48:15,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:15,882 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 17:48:15,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:48:16,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:16,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:16,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1856319377, now seen corresponding path program 1 times [2023-12-02 17:48:16,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:16,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519246953] [2023-12-02 17:48:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:16,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:48:16,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038843887] [2023-12-02 17:48:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:16,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:16,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:16,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:48:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:16,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 2176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:48:16,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 17:48:16,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:48:16,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:48:16,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519246953] [2023-12-02 17:48:16,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:48:16,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038843887] [2023-12-02 17:48:16,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038843887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:48:16,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:48:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 17:48:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606527183] [2023-12-02 17:48:16,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:48:16,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:48:16,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:48:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:48:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:48:16,895 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 17:48:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:48:17,236 INFO L93 Difference]: Finished difference Result 148 states and 179 transitions. [2023-12-02 17:48:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:48:17,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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 65 [2023-12-02 17:48:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:48:17,238 INFO L225 Difference]: With dead ends: 148 [2023-12-02 17:48:17,239 INFO L226 Difference]: Without dead ends: 93 [2023-12-02 17:48:17,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:48:17,241 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 22 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:48:17,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 495 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:48:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-02 17:48:17,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-12-02 17:48:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 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) [2023-12-02 17:48:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-12-02 17:48:17,256 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 65 [2023-12-02 17:48:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:48:17,257 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-12-02 17:48:17,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-12-02 17:48:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-12-02 17:48:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 17:48:17,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:17,260 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-02 17:48:17,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:48:17,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 17:48:17,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:17,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash 441700637, now seen corresponding path program 1 times [2023-12-02 17:48:17,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:17,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256341882] [2023-12-02 17:48:17,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:17,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:17,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:48:17,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879882168] [2023-12-02 17:48:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:17,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:17,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:17,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a322c33-7cfd-4344-bc4b-7f2499b5f5f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:48:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:18,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 2440 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 17:48:18,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:18,561 INFO L378 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 [2023-12-02 17:48:19,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-02 17:48:19,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-02 17:48:19,612 INFO L349 Elim1Store]: treesize reduction 100, result has 28.1 percent of original size [2023-12-02 17:48:19,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 77 [2023-12-02 17:48:19,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 17:48:19,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 17:48:24,109 INFO L349 Elim1Store]: treesize reduction 245, result has 32.1 percent of original size [2023-12-02 17:48:24,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 136 treesize of output 258 [2023-12-02 17:48:24,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 150 [2023-12-02 17:50:29,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2023-12-02 17:50:29,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 17:50:29,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2023-12-02 17:50:29,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 17:50:31,171 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:50:31,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2023-12-02 17:50:31,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 17:50:31,830 INFO L349 Elim1Store]: treesize reduction 24, result has 42.9 percent of original size [2023-12-02 17:50:31,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 80 [2023-12-02 17:50:31,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2023-12-02 17:50:31,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 49 [2023-12-02 17:50:32,720 INFO L349 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2023-12-02 17:50:32,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 63 [2023-12-02 17:50:32,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 51 [2023-12-02 17:50:32,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 17:50:33,329 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:50:33,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2023-12-02 17:50:33,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-12-02 17:50:33,450 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-02 17:50:33,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 80 [2023-12-02 17:50:33,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2023-12-02 17:50:33,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 49 [2023-12-02 17:50:34,177 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-02 17:50:34,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 80 [2023-12-02 17:50:34,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2023-12-02 17:50:34,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 49 [2023-12-02 17:51:53,212 INFO L349 Elim1Store]: treesize reduction 183, result has 20.1 percent of original size [2023-12-02 17:51:53,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 53 treesize of output 65 [2023-12-02 17:51:55,990 INFO L349 Elim1Store]: treesize reduction 77, result has 18.9 percent of original size [2023-12-02 17:51:55,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 39 treesize of output 37 [2023-12-02 17:51:56,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2023-12-02 17:51:59,404 INFO L349 Elim1Store]: treesize reduction 55, result has 24.7 percent of original size [2023-12-02 17:51:59,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 34 [2023-12-02 17:52:02,196 INFO L349 Elim1Store]: treesize reduction 58, result has 23.7 percent of original size [2023-12-02 17:52:02,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 34 [2023-12-02 17:52:04,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2023-12-02 17:52:06,417 INFO L349 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2023-12-02 17:52:06,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 34 [2023-12-02 17:52:08,910 INFO L349 Elim1Store]: treesize reduction 58, result has 23.7 percent of original size [2023-12-02 17:52:08,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 34 [2023-12-02 17:52:11,194 INFO L349 Elim1Store]: treesize reduction 106, result has 14.5 percent of original size [2023-12-02 17:52:11,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 37 [2023-12-02 17:52:13,537 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-02 17:52:13,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 21 [2023-12-02 17:52:15,721 INFO L349 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2023-12-02 17:52:15,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 17:52:18,019 INFO L349 Elim1Store]: treesize reduction 90, result has 17.4 percent of original size [2023-12-02 17:52:18,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 17:52:53,480 WARN L293 SmtUtils]: Spent 32.45s on a formula simplification that was a NOOP. DAG size: 370 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:53:56,808 WARN L293 SmtUtils]: Spent 33.27s on a formula simplification that was a NOOP. DAG size: 354 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:55:02,826 WARN L293 SmtUtils]: Spent 35.10s on a formula simplification that was a NOOP. DAG size: 360 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:57:08,926 WARN L293 SmtUtils]: Spent 1.21m on a formula simplification that was a NOOP. DAG size: 541 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:58:32,979 WARN L293 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 6430 DAG size of output: 693 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 17:58:32,979 INFO L349 Elim1Store]: treesize reduction 12388, result has 10.6 percent of original size [2023-12-02 17:58:32,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 0 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 1540 case distinctions, treesize of input 4569 treesize of output 5838