./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_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_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX --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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:59,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:00,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:01:00,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:00,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:00,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:00,125 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:00,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:00,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:00,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:00,132 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:00,132 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:00,133 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:00,134 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:00,135 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:00,135 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:00,136 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:00,136 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:00,137 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:00,137 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:00,138 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:00,138 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:00,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:00,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:00,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:00,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:00,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:00,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:00,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:00,142 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:00,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:00,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:00,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:00,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:00,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:00,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:00,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:00,146 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:00,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:00,146 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:00,147 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:00,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:00,147 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_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2023-11-12 01:01:00,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:00,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:00,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:00,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:00,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:00,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2023-11-12 01:01:03,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:04,281 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:04,282 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2023-11-12 01:01:04,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/data/4e5537b86/436d08e9a2e04ee6bfef71ff31be9e82/FLAG5f380d339 [2023-11-12 01:01:04,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/data/4e5537b86/436d08e9a2e04ee6bfef71ff31be9e82 [2023-11-12 01:01:04,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:04,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:04,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:04,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:04,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:04,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:04" (1/1) ... [2023-11-12 01:01:04,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7dcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:04, skipping insertion in model container [2023-11-12 01:01:04,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:04" (1/1) ... [2023-11-12 01:01:04,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:04,813 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_71643593-5e6a-4bed-ae03-95bd087587e2/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2023-11-12 01:01:04,822 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_71643593-5e6a-4bed-ae03-95bd087587e2/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2023-11-12 01:01:06,086 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,087 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,087 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,093 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,096 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,115 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,116 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,118 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,119 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,122 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,123 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,124 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,125 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,644 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:06,646 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:06,648 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:06,650 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:06,652 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:06,663 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:06,665 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:06,666 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:06,668 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:06,674 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:06,898 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,908 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:06,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:07,031 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:07,060 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_71643593-5e6a-4bed-ae03-95bd087587e2/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2023-11-12 01:01:07,061 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_71643593-5e6a-4bed-ae03-95bd087587e2/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2023-11-12 01:01:07,190 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,191 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,192 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,193 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,194 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,204 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,208 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,210 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,212 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,213 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,214 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,217 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,217 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,288 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:07,288 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:07,290 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:07,293 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:07,296 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:07,298 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:07,299 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:07,299 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:07,300 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:07,300 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:07,361 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,372 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:07,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2023-11-12 01:01:07,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:07,622 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,622 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,622 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,622 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,622 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,623 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,624 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:07,631 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:07,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07 WrapperNode [2023-11-12 01:01:07,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:07,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:07,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:07,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:07,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,806 INFO L138 Inliner]: procedures = 690, calls = 1701, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 618 [2023-11-12 01:01:07,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:07,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:07,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:07,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:07,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:07,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:07,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:07,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:07,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (1/1) ... [2023-11-12 01:01:07,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:07,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:07,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:07,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 01:01:08,004 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 01:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 01:01:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 01:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 01:01:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 01:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 01:01:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 01:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:01:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 01:01:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 01:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 01:01:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 01:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-12 01:01:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-12 01:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:01:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-12 01:01:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-12 01:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 01:01:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 01:01:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 01:01:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 01:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2023-11-12 01:01:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2023-11-12 01:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2023-11-12 01:01:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2023-11-12 01:01:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-12 01:01:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-12 01:01:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:08,372 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:08,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:09,574 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:09,788 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:09,788 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:01:09,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:09 BoogieIcfgContainer [2023-11-12 01:01:09,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:09,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:09,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:09,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:09,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:04" (1/3) ... [2023-11-12 01:01:09,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acb7a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:09, skipping insertion in model container [2023-11-12 01:01:09,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:07" (2/3) ... [2023-11-12 01:01:09,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acb7a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:09, skipping insertion in model container [2023-11-12 01:01:09,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:09" (3/3) ... [2023-11-12 01:01:09,804 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2023-11-12 01:01:09,827 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:09,827 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:01:09,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:09,918 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;@4ec85e05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:09,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:01:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-12 01:01:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 01:01:09,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:09,939 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:09,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:09,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash -172251373, now seen corresponding path program 1 times [2023-11-12 01:01:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933458139] [2023-11-12 01:01:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 01:01:11,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:11,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933458139] [2023-11-12 01:01:11,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933458139] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:01:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986712401] [2023-11-12 01:01:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:11,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:11,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:11,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:11,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:01:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:11,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:01:11,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 01:01:11,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:01:11,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986712401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:11,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:01:11,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-12 01:01:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351936786] [2023-11-12 01:01:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:11,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:01:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:11,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:01:11,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 01:01:11,890 INFO L87 Difference]: Start difference. First operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 01:01:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:12,555 INFO L93 Difference]: Finished difference Result 255 states and 361 transitions. [2023-11-12 01:01:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:01:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 67 [2023-11-12 01:01:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:12,569 INFO L225 Difference]: With dead ends: 255 [2023-11-12 01:01:12,569 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 01:01:12,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:01:12,578 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 29 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:12,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 546 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 01:01:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 01:01:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-12 01:01:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2023-11-12 01:01:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2023-11-12 01:01:12,641 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 67 [2023-11-12 01:01:12,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:12,642 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2023-11-12 01:01:12,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 01:01:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2023-11-12 01:01:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 01:01:12,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:12,647 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:12,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:01:12,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:01:12,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:12,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1230149782, now seen corresponding path program 1 times [2023-11-12 01:01:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883459191] [2023-11-12 01:01:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:12,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:13,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:01:13,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001141803] [2023-11-12 01:01:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:13,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:13,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:13,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 01:01:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:13,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:01:13,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 01:01:13,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:01:13,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:13,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883459191] [2023-11-12 01:01:13,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 01:01:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001141803] [2023-11-12 01:01:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001141803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 01:01:13,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398227447] [2023-11-12 01:01:13,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:13,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 01:01:13,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 01:01:13,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 01:01:13,696 INFO L87 Difference]: Start difference. First operand 142 states and 189 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 01:01:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:14,515 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2023-11-12 01:01:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 01:01:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 76 [2023-11-12 01:01:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:14,519 INFO L225 Difference]: With dead ends: 244 [2023-11-12 01:01:14,520 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 01:01:14,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:01:14,523 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 47 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:14,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 777 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 01:01:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 01:01:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-12 01:01:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2023-11-12 01:01:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2023-11-12 01:01:14,546 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 76 [2023-11-12 01:01:14,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:14,547 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2023-11-12 01:01:14,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 01:01:14,548 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2023-11-12 01:01:14,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 01:01:14,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:14,552 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:14,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 01:01:14,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:14,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:14,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash 489827465, now seen corresponding path program 2 times [2023-11-12 01:01:14,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:14,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160518535] [2023-11-12 01:01:14,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:14,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:14,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:01:14,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090772745] [2023-11-12 01:01:14,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 01:01:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:14,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:14,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 01:01:15,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 01:01:15,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 01:01:15,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 01:01:15,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 01:01:15,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:01:15,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:15,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160518535] [2023-11-12 01:01:15,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 01:01:15,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090772745] [2023-11-12 01:01:15,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090772745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:15,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:15,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:01:15,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414915993] [2023-11-12 01:01:15,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:15,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:01:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:15,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:01:15,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:01:15,481 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 01:01:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:15,919 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2023-11-12 01:01:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:01:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 85 [2023-11-12 01:01:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:15,922 INFO L225 Difference]: With dead ends: 242 [2023-11-12 01:01:15,923 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 01:01:15,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:01:15,925 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:15,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 608 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 01:01:15,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 01:01:15,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-12 01:01:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-12 01:01:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2023-11-12 01:01:15,944 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 85 [2023-11-12 01:01:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:15,945 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2023-11-12 01:01:15,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 01:01:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2023-11-12 01:01:15,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-12 01:01:15,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:15,948 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 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, 1, 1, 1] [2023-11-12 01:01:15,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 01:01:16,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:16,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:16,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:16,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1332323774, now seen corresponding path program 3 times [2023-11-12 01:01:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:16,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663289068] [2023-11-12 01:01:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:16,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:01:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929630079] [2023-11-12 01:01:16,261 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 01:01:16,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:16,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:16,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:16,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 01:01:16,937 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 01:01:16,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 01:01:16,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 01:01:16,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-12 01:01:17,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:01:17,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:17,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663289068] [2023-11-12 01:01:17,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 01:01:17,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929630079] [2023-11-12 01:01:17,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929630079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:17,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:17,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 01:01:17,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31418897] [2023-11-12 01:01:17,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:17,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 01:01:17,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:17,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 01:01:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:01:17,089 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 01:01:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:17,817 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2023-11-12 01:01:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 01:01:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 94 [2023-11-12 01:01:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:17,821 INFO L225 Difference]: With dead ends: 241 [2023-11-12 01:01:17,821 INFO L226 Difference]: Without dead ends: 140 [2023-11-12 01:01:17,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-12 01:01:17,823 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 51 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:17,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1033 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 01:01:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-12 01:01:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-12 01:01:17,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-12 01:01:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2023-11-12 01:01:17,843 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 94 [2023-11-12 01:01:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:17,844 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2023-11-12 01:01:17,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 01:01:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2023-11-12 01:01:17,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 01:01:17,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:17,847 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:17,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 01:01:18,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:18,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:18,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1947631211, now seen corresponding path program 1 times [2023-11-12 01:01:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:18,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875076637] [2023-11-12 01:01:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:18,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:18,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:01:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196479512] [2023-11-12 01:01:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:18,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:18,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:18,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:18,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71643593-5e6a-4bed-ae03-95bd087587e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 01:01:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:19,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 2638 conjuncts, 323 conjunts are in the unsatisfiable core [2023-11-12 01:01:19,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:01:19,923 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 01:01:21,043 INFO L351 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 [2023-11-12 01:01:21,051 INFO L351 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 [2023-11-12 01:01:21,314 INFO L322 Elim1Store]: treesize reduction 100, result has 28.1 percent of original size [2023-11-12 01:01:21,315 INFO L351 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 [2023-11-12 01:01:21,518 INFO L351 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 [2023-11-12 01:01:21,524 INFO L351 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 [2023-11-12 01:01:22,935 INFO L322 Elim1Store]: treesize reduction 138, result has 35.2 percent of original size [2023-11-12 01:01:22,936 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 89 treesize of output 172 [2023-11-12 01:01:23,010 INFO L322 Elim1Store]: treesize reduction 38, result has 11.6 percent of original size [2023-11-12 01:01:23,011 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 86 [2023-11-12 01:01:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:24,535 INFO L322 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2023-11-12 01:01:24,536 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 4 case distinctions, treesize of input 39 treesize of output 25 [2023-11-12 01:01:24,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:24,679 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 01:01:24,680 INFO L351 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 39 treesize of output 25 [2023-11-12 01:01:27,333 INFO L322 Elim1Store]: treesize reduction 839, result has 15.7 percent of original size [2023-11-12 01:01:27,334 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 132 treesize of output 326 [2023-11-12 01:01:45,332 INFO L322 Elim1Store]: treesize reduction 118, result has 0.8 percent of original size [2023-11-12 01:01:45,333 INFO L351 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 10 case distinctions, treesize of input 84 treesize of output 56 [2023-11-12 01:01:45,840 INFO L322 Elim1Store]: treesize reduction 225, result has 0.4 percent of original size [2023-11-12 01:01:45,840 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 66 treesize of output 31 [2023-11-12 01:01:45,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:45,892 INFO L322 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-12 01:01:45,892 INFO L351 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 7 case distinctions, treesize of input 54 treesize of output 26 [2023-11-12 01:01:46,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,112 INFO L322 Elim1Store]: treesize reduction 147, result has 0.7 percent of original size [2023-11-12 01:01:46,113 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 59 treesize of output 26 [2023-11-12 01:01:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,461 INFO L322 Elim1Store]: treesize reduction 147, result has 0.7 percent of original size [2023-11-12 01:01:46,461 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 59 treesize of output 26 [2023-11-12 01:01:46,492 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-12 01:01:46,506 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-12 01:01:46,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,899 INFO L322 Elim1Store]: treesize reduction 173, result has 0.6 percent of original size [2023-11-12 01:01:46,899 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 66 treesize of output 31 [2023-11-12 01:01:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:01:46,999 INFO L322 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-12 01:01:46,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 54 treesize of output 26 [2023-11-12 01:01:50,339 INFO L322 Elim1Store]: treesize reduction 241, result has 4.4 percent of original size [2023-11-12 01:01:50,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 71 treesize of output 44