./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:28:20,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:28:20,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:28:21,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:28:21,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:28:21,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:28:21,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:28:21,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:28:21,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:28:21,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:28:21,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:28:21,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:28:21,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:28:21,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:28:21,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:28:21,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:28:21,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:28:21,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:28:21,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:28:21,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:28:21,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:28:21,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:28:21,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:28:21,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:28:21,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:28:21,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:28:21,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:28:21,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:28:21,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:28:21,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:28:21,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:28:21,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:28:21,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:28:21,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:28:21,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:28:21,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:28:21,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:28:21,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:28:21,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:28:21,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:28:21,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:28:21,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:28:21,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:28:21,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:28:21,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:28:21,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:28:21,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:28:21,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:28:21,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:28:21,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:28:21,136 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:28:21,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:28:21,137 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:28:21,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:28:21,137 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:28:21,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:28:21,138 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:28:21,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:28:21,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:28:21,138 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:28:21,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:28:21,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:28:21,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:28:21,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:28:21,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:28:21,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:28:21,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:28:21,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:28:21,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:28:21,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:28:21,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:28:21,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:21,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:28:21,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:28:21,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:28:21,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:28:21,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:28:21,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:28:21,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:28:21,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:28:21,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-11-25 22:28:21,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:28:21,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:28:21,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:28:21,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:28:21,494 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:28:21,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-25 22:28:24,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:28:25,040 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:28:25,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-25 22:28:25,068 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/data/908f03e6b/18cafd94d0604bf18b3827bb087d3b97/FLAGc3f5f6d73 [2022-11-25 22:28:25,088 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/data/908f03e6b/18cafd94d0604bf18b3827bb087d3b97 [2022-11-25 22:28:25,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:28:25,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:28:25,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:25,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:28:25,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:28:25,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:25" (1/1) ... [2022-11-25 22:28:25,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70039a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:25, skipping insertion in model container [2022-11-25 22:28:25,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:25" (1/1) ... [2022-11-25 22:28:25,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:28:25,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:28:25,474 WARN L237 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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-25 22:28:25,486 WARN L237 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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-25 22:28:26,679 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:28:26,741 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:26,755 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:26,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,764 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,765 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,766 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,767 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,772 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:26,781 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,782 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,784 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,784 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,786 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,788 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,788 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,789 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:26,893 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:26,900 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:26,906 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:26,919 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:28:26,923 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:28:26,927 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:28:27,078 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,243 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:28:27,244 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:28:27,245 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:28:27,246 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:28:27,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:28:27,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:28:27,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:28:27,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:28:27,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:28:27,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:28:27,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:28:27,485 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,504 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,541 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,563 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:28:27,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:27,608 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:28:27,622 WARN L237 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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-25 22:28:27,623 WARN L237 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_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-25 22:28:27,654 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:28:27,659 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,665 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,669 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,670 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,670 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,671 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,671 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,674 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,678 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,683 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,685 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,685 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,686 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,689 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,689 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,700 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:27,700 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:27,701 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:28:27,704 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:28:27,705 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:28:27,705 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:28:27,708 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,733 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:28:27,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:28:27,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:28:27,737 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:28:27,738 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:28:27,740 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:28:27,742 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:28:27,742 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:28:27,743 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:28:27,747 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:28:27,752 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:28:27,785 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,790 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:28:27,796 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 22:28:27,812 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:28:27,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:28,087 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:28:28,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28 WrapperNode [2022-11-25 22:28:28,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:28,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:28,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:28:28,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:28:28,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,260 INFO L138 Inliner]: procedures = 691, calls = 1699, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 615 [2022-11-25 22:28:28,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:28,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:28:28,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:28:28,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:28:28,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:28:28,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:28:28,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:28:28,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:28:28,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (1/1) ... [2022-11-25 22:28:28,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:28,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:28,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:28:28,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:28:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:28:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 22:28:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 22:28:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 22:28:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 22:28:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 22:28:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 22:28:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:28:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 22:28:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 22:28:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:28:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:28:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:28:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:28:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:28:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:28:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:28:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 22:28:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 22:28:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-25 22:28:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-25 22:28:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 22:28:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 22:28:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 22:28:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 22:28:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:28:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:28:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-25 22:28:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-25 22:28:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:28:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:28:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:28:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 22:28:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 22:28:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 22:28:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 22:28:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:28:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-25 22:28:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-25 22:28:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-25 22:28:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-25 22:28:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:28:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:28:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:28:28,880 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:28:28,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:28:30,008 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:28:30,186 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:28:30,187 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:28:30,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:30 BoogieIcfgContainer [2022-11-25 22:28:30,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:28:30,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:28:30,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:28:30,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:28:30,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:28:25" (1/3) ... [2022-11-25 22:28:30,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6c2e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:30, skipping insertion in model container [2022-11-25 22:28:30,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:28" (2/3) ... [2022-11-25 22:28:30,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6c2e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:30, skipping insertion in model container [2022-11-25 22:28:30,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:30" (3/3) ... [2022-11-25 22:28:30,202 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-11-25 22:28:30,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:28:30,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:28:30,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:28:30,309 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=LoopsAndPotentialCycles, 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;@21417fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:28:30,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:28:30,315 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) [2022-11-25 22:28:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 22:28:30,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:30,327 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] [2022-11-25 22:28:30,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:30,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:30,334 INFO L85 PathProgramCache]: Analyzing trace with hash 469076981, now seen corresponding path program 1 times [2022-11-25 22:28:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:30,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987481563] [2022-11-25 22:28:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 22:28:31,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:31,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987481563] [2022-11-25 22:28:31,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987481563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:28:31,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921285286] [2022-11-25 22:28:31,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:31,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:31,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:31,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:31,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:28:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:32,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:28:32,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:28:32,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:32,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921285286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:32,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:28:32,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-25 22:28:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882601369] [2022-11-25 22:28:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:32,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:28:32,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:32,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:28:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:28:32,415 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) [2022-11-25 22:28:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:33,070 INFO L93 Difference]: Finished difference Result 255 states and 361 transitions. [2022-11-25 22:28:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:28:33,076 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 [2022-11-25 22:28:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:33,087 INFO L225 Difference]: With dead ends: 255 [2022-11-25 22:28:33,088 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 22:28:33,092 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 [2022-11-25 22:28:33,095 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 29 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:33,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 535 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:28:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 22:28:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-25 22:28:33,142 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) [2022-11-25 22:28:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2022-11-25 22:28:33,146 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 67 [2022-11-25 22:28:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:33,147 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2022-11-25 22:28:33,147 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) [2022-11-25 22:28:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2022-11-25 22:28:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 22:28:33,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:33,150 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] [2022-11-25 22:28:33,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:33,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:28:33,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:33,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:33,360 INFO L85 PathProgramCache]: Analyzing trace with hash 941615624, now seen corresponding path program 1 times [2022-11-25 22:28:33,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:33,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104046426] [2022-11-25 22:28:33,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:33,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:33,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:33,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254018143] [2022-11-25 22:28:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:33,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:33,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:33,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:33,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:28:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:34,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:28:34,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 22:28:34,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:34,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:34,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104046426] [2022-11-25 22:28:34,190 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:34,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254018143] [2022-11-25 22:28:34,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254018143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:34,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:34,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:28:34,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860174814] [2022-11-25 22:28:34,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:34,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:28:34,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:34,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:28:34,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:28:34,199 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) [2022-11-25 22:28:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:34,977 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2022-11-25 22:28:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:28:34,978 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 [2022-11-25 22:28:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:34,980 INFO L225 Difference]: With dead ends: 244 [2022-11-25 22:28:34,981 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 22:28:34,982 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 [2022-11-25 22:28:34,983 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 47 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:34,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 738 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:28:34,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 22:28:35,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-25 22:28:35,001 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) [2022-11-25 22:28:35,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2022-11-25 22:28:35,003 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 76 [2022-11-25 22:28:35,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:35,003 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2022-11-25 22:28:35,003 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) [2022-11-25 22:28:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2022-11-25 22:28:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 22:28:35,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:35,006 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] [2022-11-25 22:28:35,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:35,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 22:28:35,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1291655425, now seen corresponding path program 2 times [2022-11-25 22:28:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530716431] [2022-11-25 22:28:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:35,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:35,309 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:35,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203398944] [2022-11-25 22:28:35,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:28:35,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:35,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:35,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:35,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:28:35,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 22:28:35,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:28:35,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:28:35,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 22:28:35,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:35,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:35,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530716431] [2022-11-25 22:28:35,975 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:35,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203398944] [2022-11-25 22:28:35,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203398944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:35,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:35,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:28:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387740395] [2022-11-25 22:28:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:35,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:28:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:28:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:28:35,978 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) [2022-11-25 22:28:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:36,370 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2022-11-25 22:28:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:28:36,371 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 [2022-11-25 22:28:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:36,373 INFO L225 Difference]: With dead ends: 242 [2022-11-25 22:28:36,373 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 22:28:36,374 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 [2022-11-25 22:28:36,374 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:36,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:28:36,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 22:28:36,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-25 22:28:36,387 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) [2022-11-25 22:28:36,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2022-11-25 22:28:36,389 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 85 [2022-11-25 22:28:36,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:36,389 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-11-25 22:28:36,390 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) [2022-11-25 22:28:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2022-11-25 22:28:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 22:28:36,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:36,392 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] [2022-11-25 22:28:36,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:36,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:36,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:36,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2046961644, now seen corresponding path program 3 times [2022-11-25 22:28:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:36,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596975669] [2022-11-25 22:28:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:36,695 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:36,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743170012] [2022-11-25 22:28:36,695 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 22:28:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:36,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:36,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:28:37,325 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 22:28:37,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:28:37,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:28:37,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 22:28:37,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:37,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:37,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596975669] [2022-11-25 22:28:37,498 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:37,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743170012] [2022-11-25 22:28:37,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743170012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:37,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 22:28:37,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218766136] [2022-11-25 22:28:37,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:37,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:28:37,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:37,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:28:37,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:28:37,502 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) [2022-11-25 22:28:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:38,208 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2022-11-25 22:28:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:28:38,209 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 [2022-11-25 22:28:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:38,211 INFO L225 Difference]: With dead ends: 241 [2022-11-25 22:28:38,212 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 22:28:38,212 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 [2022-11-25 22:28:38,213 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 51 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:38,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 966 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:28:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 22:28:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-11-25 22:28:38,229 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) [2022-11-25 22:28:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2022-11-25 22:28:38,231 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 94 [2022-11-25 22:28:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:38,232 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-11-25 22:28:38,232 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) [2022-11-25 22:28:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2022-11-25 22:28:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 22:28:38,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:38,234 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] [2022-11-25 22:28:38,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:38,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 833723995, now seen corresponding path program 1 times [2022-11-25 22:28:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:38,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141567009] [2022-11-25 22:28:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:38,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:38,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105446411] [2022-11-25 22:28:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:38,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:38,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:38,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:38,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb4b2c1-8f4b-480a-9aeb-5948cf556f24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:28:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:40,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 411 conjunts are in the unsatisfiable core [2022-11-25 22:28:40,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:40,825 INFO L350 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 [2022-11-25 22:28:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:41,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:28:41,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:41,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:28:42,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 [2022-11-25 22:28:43,408 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-25 22:28:43,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-11-25 22:28:43,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:28:43,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:28:43,872 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-25 22:28:43,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-25 22:28:47,493 INFO L321 Elim1Store]: treesize reduction 91, result has 30.0 percent of original size [2022-11-25 22:28:47,494 INFO L350 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 9 case distinctions, treesize of input 46 treesize of output 69 [2022-11-25 22:28:47,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-25 22:28:47,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 22:28:47,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:28:50,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:28:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:50,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:50,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 181 [2022-11-25 22:28:50,984 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:28:50,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 129 [2022-11-25 22:28:51,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:28:51,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 125 [2022-11-25 22:28:51,175 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:28:51,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 119 [2022-11-25 22:28:52,704 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 22:28:52,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2022-11-25 22:28:52,719 INFO L350 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 19 treesize of output 17 [2022-11-25 22:28:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:53,035 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-25 22:28:53,035 INFO L350 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 2 case distinctions, treesize of input 76 treesize of output 72 [2022-11-25 22:28:53,072 INFO L350 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 19 treesize of output 17 [2022-11-25 22:28:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:28:53,120 INFO L350 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 55 treesize of output 43 [2022-11-25 22:29:03,066 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-25 22:29:03,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 27 [2022-11-25 22:29:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:08,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:08,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:08,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:08,480 INFO L350 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 85 treesize of output 51 [2022-11-25 22:29:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:18,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:18,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:18,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:29:18,208 INFO L350 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 85 treesize of output 51 [2022-11-25 22:29:20,855 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-25 22:29:20,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 9 [2022-11-25 22:29:32,707 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 150 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:30:08,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 809 [2022-11-25 22:30:08,469 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-25 22:30:09,596 INFO L321 Elim1Store]: treesize reduction 126, result has 28.4 percent of original size [2022-11-25 22:30:09,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 7 case distinctions, treesize of input 486 treesize of output 864 [2022-11-25 22:30:10,083 INFO L217 Elim1Store]: Index analysis took 293 ms [2022-11-25 22:30:10,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 627 [2022-11-25 22:30:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 71 refuted. 2 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 22:30:11,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:30:27,100 WARN L233 SmtUtils]: Spent 14.69s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:30:35,475 WARN L233 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:31:11,475 WARN L233 SmtUtils]: Spent 35.97s on a formula simplification. DAG size of input: 396 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:31:37,699 WARN L233 SmtUtils]: Spent 26.22s on a formula simplification that was a NOOP. DAG size: 184 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:32:20,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:20,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141567009] [2022-11-25 22:32:20,464 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:32:20,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105446411] [2022-11-25 22:32:20,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105446411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:20,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1315870657] [2022-11-25 22:32:20,486 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-11-25 22:32:20,486 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:32:20,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:32:20,496 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:32:20,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:32:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:23,982 INFO L217 Elim1Store]: Index analysis took 525 ms [2022-11-25 22:32:42,049 WARN L233 SmtUtils]: Spent 17.99s on a formula simplification. DAG size of input: 1740 DAG size of output: 1157 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:32:42,053 INFO L321 Elim1Store]: treesize reduction 1938, result has 47.2 percent of original size [2022-11-25 22:32:42,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19114 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 193 case distinctions, treesize of input 987 treesize of output 2338 [2022-11-25 22:32:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:46,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:32:46,312 INFO L217 Elim1Store]: Index analysis took 970 ms [2022-11-25 22:33:17,273 WARN L233 SmtUtils]: Spent 30.90s on a formula simplification. DAG size of input: 2128 DAG size of output: 1161 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:33:17,278 INFO L321 Elim1Store]: treesize reduction 3474, result has 33.3 percent of original size [2022-11-25 22:33:17,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19310 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 386 case distinctions, treesize of input 997 treesize of output 2357 [2022-11-25 22:34:23,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:23,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:23,514 INFO L350 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 38 treesize of output 29 [2022-11-25 22:34:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:23,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-25 22:34:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:23,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-25 22:34:23,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-25 22:34:26,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:26,490 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:34:26,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19501 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 2 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 22:34:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,117 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-11-25 22:34:27,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,245 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-25 22:34:27,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-25 22:34:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:27,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 22:34:28,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,441 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-25 22:34:28,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17052 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 0 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-25 22:34:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:28,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-25 22:34:37,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:37,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:37,599 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-25 22:34:37,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-25 22:34:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:38,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:34:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,246 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-25 22:34:38,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-25 22:34:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:38,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19505 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 22:34:39,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 22:34:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:39,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-25 22:34:40,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:34:40,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-25 22:34:40,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:34:40,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-25 22:34:40,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-11-25 22:34:40,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-25 22:34:40,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-25 22:34:40,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-25 22:34:40,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:34:40,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:34:40,787 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:34:40,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 26 treesize of output 38 [2022-11-25 22:34:40,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:34:40,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:34:40,868 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:34:40,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 26 treesize of output 38 [2022-11-25 22:34:41,014 INFO L350 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 [2022-11-25 22:34:41,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:34:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:42,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-25 22:34:42,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:42,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-25 22:34:43,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:34:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-25 22:34:43,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:34:43,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-25 22:34:44,217 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 22:34:44,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-25 22:34:44,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 22:35:01,403 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_pop_back with input of size 133 for LOIs [2022-11-25 22:35:02,592 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_length with input of size 69 for LOIs [2022-11-25 22:35:03,207 INFO L350 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 [2022-11-25 22:35:03,308 INFO L350 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 [2022-11-25 22:35:03,556 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2022-11-25 22:35:03,569 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 48 for LOIs [2022-11-25 22:35:03,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:35:03,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-25 22:35:03,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:03,679 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:35:03,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-25 22:35:03,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:35:03,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:35:03,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:03,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:35:03,774 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:35:03,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-25 22:35:03,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:35:03,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:35:04,005 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 22:35:04,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 191 [2022-11-25 22:35:04,601 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2819 for LOIs [2022-11-25 22:35:07,619 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 108 for LOIs [2022-11-25 22:35:08,335 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-11-25 22:35:08,363 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2869 for LOIs [2022-11-25 22:36:46,229 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 2864 for LOIs [2022-11-25 22:36:52,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2894 for LOIs [2022-11-25 22:37:03,136 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:39:37,355 WARN L233 SmtUtils]: Spent 2.41m on a formula simplification. DAG size of input: 2815 DAG size of output: 2431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:42:32,115 WARN L233 SmtUtils]: Spent 2.73m on a formula simplification. DAG size of input: 2819 DAG size of output: 2435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)