./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba --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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- 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-b5237d8 [2022-11-22 01:50:00,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:50:00,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:50:00,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:50:00,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:50:00,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:50:00,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:50:00,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:50:00,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:50:00,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:50:00,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:50:00,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:50:00,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:50:00,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:50:00,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:50:00,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:50:00,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:50:00,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:50:00,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:50:00,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:50:00,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:50:00,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:50:00,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:50:00,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:50:00,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:50:00,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:50:00,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:50:00,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:50:00,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:50:00,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:50:00,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:50:00,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:50:00,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:50:00,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:50:00,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:50:00,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:50:00,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:50:00,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:50:00,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:50:00,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:50:00,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:50:00,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:50:00,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:50:00,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:50:00,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:50:00,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:50:00,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:50:00,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:50:00,821 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:50:00,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:50:00,821 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:50:00,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:50:00,823 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:50:00,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:50:00,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:50:00,823 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:50:00,824 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:50:00,824 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:50:00,824 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:50:00,825 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:50:00,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:50:00,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:50:00,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:50:00,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:50:00,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:50:00,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:50:00,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:50:00,827 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:50:00,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:50:00,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:50:00,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:50:00,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:00,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:50:00,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:50:00,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:50:00,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:50:00,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:50:00,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:50:00,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:50:00,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:50:00,832 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_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2022-11-22 01:50:01,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:50:01,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:50:01,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:50:01,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:50:01,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:50:01,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2022-11-22 01:50:04,230 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:50:04,811 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:50:04,812 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2022-11-22 01:50:04,859 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/data/7c3a03b72/be5ba424170642d7ab40e57af4e11602/FLAG7cf4c567f [2022-11-22 01:50:04,877 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/data/7c3a03b72/be5ba424170642d7ab40e57af4e11602 [2022-11-22 01:50:04,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:50:04,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:50:04,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:04,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:50:04,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:50:04,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:04" (1/1) ... [2022-11-22 01:50:04,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddb2694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:04, skipping insertion in model container [2022-11-22 01:50:04,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:04" (1/1) ... [2022-11-22 01:50:04,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:50:05,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:50:05,315 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_cd725efb-c61b-4e54-81dc-9da816ee811d/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2022-11-22 01:50:05,325 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_cd725efb-c61b-4e54-81dc-9da816ee811d/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2022-11-22 01:50:06,455 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,457 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,458 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,459 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,460 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,485 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,489 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,492 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:06,493 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,059 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:50:07,060 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:50:07,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:50:07,062 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:50:07,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:50:07,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:50:07,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:50:07,073 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:50:07,074 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:50:07,075 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:50:07,274 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:50:07,431 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,433 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:07,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:50:07,655 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_cd725efb-c61b-4e54-81dc-9da816ee811d/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2022-11-22 01:50:07,656 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_cd725efb-c61b-4e54-81dc-9da816ee811d/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2022-11-22 01:50:07,687 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,687 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,688 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,688 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,689 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,694 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,695 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,696 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,696 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,725 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:50:07,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:50:07,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:50:07,728 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:50:07,729 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:50:07,730 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:50:07,730 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:50:07,731 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:50:07,731 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:50:07,732 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:50:07,752 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:50:07,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,812 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:07,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:08,140 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:50:08,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08 WrapperNode [2022-11-22 01:50:08,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:08,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:08,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:50:08,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:50:08,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,389 INFO L138 Inliner]: procedures = 693, calls = 2771, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 807 [2022-11-22 01:50:08,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:08,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:50:08,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:50:08,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:50:08,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,512 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:50:08,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:50:08,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:50:08,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:50:08,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (1/1) ... [2022-11-22 01:50:08,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:08,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:08,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:50:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:50:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-22 01:50:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-22 01:50:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-22 01:50:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-22 01:50:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:50:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:50:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:50:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:50:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:50:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:50:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:50:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:50:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:50:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:50:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:50:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:50:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:50:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:50:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2022-11-22 01:50:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2022-11-22 01:50:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-22 01:50:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-22 01:50:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:50:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:50:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-22 01:50:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-22 01:50:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:50:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:50:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:50:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:50:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:50:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:50:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 01:50:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 01:50:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:50:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:50:09,027 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:50:09,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:50:10,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:50:10,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:50:10,594 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:50:10,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:10 BoogieIcfgContainer [2022-11-22 01:50:10,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:50:10,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:50:10,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:50:10,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:50:10,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:50:04" (1/3) ... [2022-11-22 01:50:10,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4f9fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:10, skipping insertion in model container [2022-11-22 01:50:10,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:08" (2/3) ... [2022-11-22 01:50:10,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4f9fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:10, skipping insertion in model container [2022-11-22 01:50:10,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:10" (3/3) ... [2022-11-22 01:50:10,614 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2022-11-22 01:50:10,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:50:10,635 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:50:10,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:50:10,707 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;@57fecbd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:50:10,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:50:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-22 01:50:10,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-22 01:50:10,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:10,723 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-22 01:50:10,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:10,732 INFO L85 PathProgramCache]: Analyzing trace with hash -230741819, now seen corresponding path program 1 times [2022-11-22 01:50:10,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:10,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325791941] [2022-11-22 01:50:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:10,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-22 01:50:12,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:12,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325791941] [2022-11-22 01:50:12,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325791941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:12,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:12,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:50:12,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355475260] [2022-11-22 01:50:12,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:12,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:50:12,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:50:12,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:50:12,509 INFO L87 Difference]: Start difference. First operand has 79 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-22 01:50:12,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:12,855 INFO L93 Difference]: Finished difference Result 103 states and 120 transitions. [2022-11-22 01:50:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:50:12,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 47 [2022-11-22 01:50:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:12,867 INFO L225 Difference]: With dead ends: 103 [2022-11-22 01:50:12,867 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 01:50:12,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:50:12,873 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 24 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:12,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 500 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:50:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 01:50:12,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-22 01:50:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-22 01:50:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-11-22 01:50:12,926 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 47 [2022-11-22 01:50:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:12,928 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-11-22 01:50:12,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-22 01:50:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-11-22 01:50:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:50:12,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:12,932 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:12,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:50:12,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:12,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash -84561895, now seen corresponding path program 1 times [2022-11-22 01:50:12,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:12,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458857968] [2022-11-22 01:50:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:50:13,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:13,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458857968] [2022-11-22 01:50:13,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458857968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:13,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:13,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:50:13,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33953307] [2022-11-22 01:50:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:13,512 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 01:50:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:13,691 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2022-11-22 01:50:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:13,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 68 [2022-11-22 01:50:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:13,703 INFO L225 Difference]: With dead ends: 119 [2022-11-22 01:50:13,703 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 01:50:13,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:13,710 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 3 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:13,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 189 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:50:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 01:50:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-22 01:50:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-22 01:50:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2022-11-22 01:50:13,727 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 68 [2022-11-22 01:50:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:13,728 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2022-11-22 01:50:13,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 01:50:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2022-11-22 01:50:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 01:50:13,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:13,731 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:13,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:50:13,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:13,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 795240198, now seen corresponding path program 1 times [2022-11-22 01:50:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:13,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230664007] [2022-11-22 01:50:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:13,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-22 01:50:16,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230664007] [2022-11-22 01:50:16,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230664007] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:16,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353608077] [2022-11-22 01:50:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:16,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:16,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:16,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:16,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:50:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:16,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-22 01:50:17,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:17,522 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:50:17,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2022-11-22 01:50:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-22 01:50:17,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:50:17,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353608077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:17,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:50:17,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2022-11-22 01:50:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265605302] [2022-11-22 01:50:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:17,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:50:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:50:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:50:17,851 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-22 01:50:18,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:18,855 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2022-11-22 01:50:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:50:18,858 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 72 [2022-11-22 01:50:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:18,859 INFO L225 Difference]: With dead ends: 97 [2022-11-22 01:50:18,860 INFO L226 Difference]: Without dead ends: 74 [2022-11-22 01:50:18,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=798, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:50:18,863 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 11 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:18,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 838 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:50:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-22 01:50:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-22 01:50:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-22 01:50:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2022-11-22 01:50:18,880 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 72 [2022-11-22 01:50:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:18,880 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2022-11-22 01:50:18,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-22 01:50:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2022-11-22 01:50:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:50:18,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:18,883 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:18,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:19,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:19,095 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:19,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash -765914800, now seen corresponding path program 1 times [2022-11-22 01:50:19,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:19,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328366922] [2022-11-22 01:50:19,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:19,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 01:50:21,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328366922] [2022-11-22 01:50:21,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328366922] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792993585] [2022-11-22 01:50:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:21,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:21,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:21,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:21,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd725efb-c61b-4e54-81dc-9da816ee811d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:50:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:22,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 2664 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-22 01:50:22,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:22,525 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 65 treesize of output 60 [2022-11-22 01:50:22,562 INFO L321 Elim1Store]: treesize reduction 15, result has 53.1 percent of original size [2022-11-22 01:50:22,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 124 [2022-11-22 01:50:22,677 INFO L321 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2022-11-22 01:50:22,678 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 91 [2022-11-22 01:50:27,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:50:27,645 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:50:27,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 26 [2022-11-22 01:50:27,926 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 14 treesize of output 10 [2022-11-22 01:50:29,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:50:29,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:50:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:50:29,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:30,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792993585] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:30,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [282891907] [2022-11-22 01:50:30,654 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-22 01:50:30,655 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:50:30,659 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:50:30,664 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:50:30,665 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:50:34,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:34,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:34,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:34,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:34,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:34,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1746 treesize of output 1374 [2022-11-22 01:50:36,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:36,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:36,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1746 treesize of output 1374 [2022-11-22 01:50:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:38,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:39,064 INFO L217 Elim1Store]: Index analysis took 780 ms [2022-11-22 01:50:39,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 309 select indices, 309 select index equivalence classes, 33694 disjoint index pairs (out of 47586 index pairs), introduced 309 new quantified variables, introduced 0 case distinctions, treesize of input 2781 treesize of output 3693 [2022-11-22 01:50:41,983 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 [2022-11-22 01:50:47,249 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 8 treesize of output 7 [2022-11-22 01:50:47,254 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 [2022-11-22 01:50:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 55 treesize of output 17 [2022-11-22 01:50:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 55 treesize of output 17 [2022-11-22 01:50:47,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 55 treesize of output 17 [2022-11-22 01:50:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:47,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-11-22 01:50:50,431 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:50:57,742 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:51:02,220 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 3307 for LOIs [2022-11-22 01:52:44,132 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 3292 for LOIs [2022-11-22 01:52:48,205 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 3316 for LOIs [2022-11-22 01:53:35,250 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3384 for LOIs [2022-11-22 01:54:13,974 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:26,967 WARN L233 SmtUtils]: Spent 1.16m on a formula simplification that was a NOOP. DAG size: 3292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:56:42,380 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 3307 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:57:58,578 WARN L233 SmtUtils]: Spent 1.21m on a formula simplification that was a NOOP. DAG size: 3309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)