./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS --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 ccc87605c4556c18c172bc882c4bc58637928d3f75ad69e0a339ead8d6093a78 --- 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-8393723 [2022-11-19 07:42:19,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:42:19,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:42:19,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:42:19,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:42:19,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:42:19,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:42:19,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:42:19,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:42:19,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:42:19,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:42:19,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:42:19,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:42:19,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:42:19,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:42:19,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:42:19,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:42:19,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:42:19,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:42:19,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:42:19,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:42:19,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:42:19,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:42:19,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:42:19,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:42:19,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:42:19,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:42:19,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:42:19,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:42:19,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:42:19,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:42:19,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:42:19,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:42:19,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:42:19,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:42:19,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:42:19,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:42:19,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:42:19,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:42:19,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:42:19,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:42:19,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:42:19,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:42:19,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:42:19,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:42:19,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:42:19,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:42:19,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:42:19,984 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:42:19,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:42:19,985 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:42:19,985 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:42:19,986 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:42:19,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:42:19,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:42:19,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:42:19,987 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:42:19,988 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:42:19,988 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:42:19,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:42:19,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:42:19,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:42:19,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:42:19,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:42:19,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:42:19,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:42:19,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:42:19,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:42:19,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:42:19,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:42:19,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:42:19,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:19,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:42:19,993 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:42:19,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:42:19,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:42:19,994 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:42:19,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:42:19,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:42:19,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:42:19,995 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccc87605c4556c18c172bc882c4bc58637928d3f75ad69e0a339ead8d6093a78 [2022-11-19 07:42:20,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:42:20,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:42:20,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:42:20,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:42:20,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:42:20,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i [2022-11-19 07:42:20,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/data/4c08623aa/8f372837b5214d16a3f6833d16ae7eef/FLAGddfe823e0 [2022-11-19 07:42:21,240 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:42:21,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i [2022-11-19 07:42:21,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/data/4c08623aa/8f372837b5214d16a3f6833d16ae7eef/FLAGddfe823e0 [2022-11-19 07:42:21,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/data/4c08623aa/8f372837b5214d16a3f6833d16ae7eef [2022-11-19 07:42:21,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:42:21,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:42:21,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:21,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:42:21,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:42:21,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:21" (1/1) ... [2022-11-19 07:42:21,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cda2d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:21, skipping insertion in model container [2022-11-19 07:42:21,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:21" (1/1) ... [2022-11-19 07:42:21,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:42:21,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:42:22,267 WARN L234 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i[4494,4507] [2022-11-19 07:42:22,275 WARN L234 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i[4554,4567] [2022-11-19 07:42:23,149 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,150 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,151 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,152 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,153 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,168 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,168 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,170 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,171 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,172 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,173 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,174 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,174 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,550 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:42:23,551 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:42:23,552 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:42:23,554 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:42:23,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:42:23,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:42:23,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:42:23,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:42:23,559 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:42:23,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:42:23,724 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:42:23,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:23,833 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:42:23,849 WARN L234 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i[4494,4507] [2022-11-19 07:42:23,849 WARN L234 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_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/sv-benchmarks/c/aws-c-common/aws_ring_buffer_init_harness.i[4554,4567] [2022-11-19 07:42:23,895 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,896 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,896 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,897 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,898 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,908 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,908 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,910 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,910 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,912 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,913 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,914 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,914 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:42:23,961 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:42:23,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:42:23,963 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:42:23,964 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:42:23,965 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:42:23,965 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:42:23,966 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:42:23,967 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:42:23,967 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:42:23,968 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:42:23,998 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:42:24,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:24,435 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:42:24,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24 WrapperNode [2022-11-19 07:42:24,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:24,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:24,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:42:24,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:42:24,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,637 INFO L138 Inliner]: procedures = 689, calls = 1510, calls flagged for inlining = 49, calls inlined = 7, statements flattened = 567 [2022-11-19 07:42:24,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:24,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:42:24,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:42:24,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:42:24,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,698 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:42:24,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:42:24,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:42:24,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:42:24,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (1/1) ... [2022-11-19 07:42:24,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:24,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:24,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:42:24,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:42:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_load_n [2022-11-19 07:42:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:42:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 07:42:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 07:42:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-19 07:42:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-19 07:42:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2022-11-19 07:42:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2022-11-19 07:42:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_init_ptr [2022-11-19 07:42:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_init_ptr [2022-11-19 07:42:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-19 07:42:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-19 07:42:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:42:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2022-11-19 07:42:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2022-11-19 07:42:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:42:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:42:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 07:42:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 07:42:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-19 07:42:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-19 07:42:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:42:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:42:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:42:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-19 07:42:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-19 07:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2022-11-19 07:42:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2022-11-19 07:42:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 07:42:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 07:42:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2022-11-19 07:42:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2022-11-19 07:42:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:42:25,253 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:42:25,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:42:26,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:42:26,623 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:42:26,623 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:42:26,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:26 BoogieIcfgContainer [2022-11-19 07:42:26,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:42:26,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:42:26,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:42:26,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:42:26,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:21" (1/3) ... [2022-11-19 07:42:26,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834d91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:26, skipping insertion in model container [2022-11-19 07:42:26,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:24" (2/3) ... [2022-11-19 07:42:26,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2834d91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:26, skipping insertion in model container [2022-11-19 07:42:26,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:26" (3/3) ... [2022-11-19 07:42:26,639 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_init_harness.i [2022-11-19 07:42:26,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:42:26,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:42:26,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:42:26,760 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;@45be95f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:42:26,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:42:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 60 states have (on average 1.25) internal successors, (75), 62 states have internal predecessors, (75), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-19 07:42:26,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 07:42:26,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:26,782 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-11-19 07:42:26,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1565176431, now seen corresponding path program 1 times [2022-11-19 07:42:26,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:26,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574099908] [2022-11-19 07:42:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:26,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:42:27,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:27,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574099908] [2022-11-19 07:42:27,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574099908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:27,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:27,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:42:27,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875680819] [2022-11-19 07:42:27,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:27,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:42:27,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:42:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:42:27,465 INFO L87 Difference]: Start difference. First operand has 106 states, 60 states have (on average 1.25) internal successors, (75), 62 states have internal predecessors, (75), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:42:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:27,718 INFO L93 Difference]: Finished difference Result 204 states and 262 transitions. [2022-11-19 07:42:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:42:27,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2022-11-19 07:42:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:27,732 INFO L225 Difference]: With dead ends: 204 [2022-11-19 07:42:27,732 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:27,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:42:27,741 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:27,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:27,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:27,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 59 states have internal predecessors, (68), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-19 07:42:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 125 transitions. [2022-11-19 07:42:27,822 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 125 transitions. Word has length 64 [2022-11-19 07:42:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:27,826 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 125 transitions. [2022-11-19 07:42:27,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:42:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 125 transitions. [2022-11-19 07:42:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 07:42:27,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:27,831 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-11-19 07:42:27,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:42:27,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:27,833 INFO L85 PathProgramCache]: Analyzing trace with hash -682153349, now seen corresponding path program 1 times [2022-11-19 07:42:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:27,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173775849] [2022-11-19 07:42:27,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:27,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:42:28,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:28,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173775849] [2022-11-19 07:42:28,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173775849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:28,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:28,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:42:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675680250] [2022-11-19 07:42:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:28,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:28,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:28,829 INFO L87 Difference]: Start difference. First operand 103 states and 125 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-19 07:42:29,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:29,643 INFO L93 Difference]: Finished difference Result 164 states and 199 transitions. [2022-11-19 07:42:29,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:29,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) Word has length 69 [2022-11-19 07:42:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:29,652 INFO L225 Difference]: With dead ends: 164 [2022-11-19 07:42:29,652 INFO L226 Difference]: Without dead ends: 109 [2022-11-19 07:42:29,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:29,657 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:29,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 539 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 07:42:29,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-19 07:42:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2022-11-19 07:42:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 62 states have internal predecessors, (71), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2022-11-19 07:42:29,692 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 69 [2022-11-19 07:42:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:29,693 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2022-11-19 07:42:29,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-19 07:42:29,695 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2022-11-19 07:42:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 07:42:29,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:29,702 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1] [2022-11-19 07:42:29,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:42:29,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash -926352742, now seen corresponding path program 1 times [2022-11-19 07:42:29,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:29,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376474759] [2022-11-19 07:42:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:30,145 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:42:30,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:30,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376474759] [2022-11-19 07:42:30,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376474759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:30,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:30,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:30,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845108188] [2022-11-19 07:42:30,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:30,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:42:30,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:30,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:42:30,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:42:30,151 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 07:42:30,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:30,497 INFO L93 Difference]: Finished difference Result 149 states and 179 transitions. [2022-11-19 07:42:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:42:30,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 73 [2022-11-19 07:42:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:30,504 INFO L225 Difference]: With dead ends: 149 [2022-11-19 07:42:30,504 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 07:42:30,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:30,505 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:30,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 326 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:42:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 07:42:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-19 07:42:30,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-11-19 07:42:30,528 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 73 [2022-11-19 07:42:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:30,529 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-11-19 07:42:30,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 07:42:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-11-19 07:42:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:42:30,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:30,537 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1] [2022-11-19 07:42:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:42:30,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 893292607, now seen corresponding path program 1 times [2022-11-19 07:42:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:30,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629141739] [2022-11-19 07:42:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:30,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:42:31,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:31,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629141739] [2022-11-19 07:42:31,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629141739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:31,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:31,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:42:31,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436728331] [2022-11-19 07:42:31,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:31,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:31,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:31,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:31,084 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 07:42:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:31,617 INFO L93 Difference]: Finished difference Result 147 states and 182 transitions. [2022-11-19 07:42:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 79 [2022-11-19 07:42:31,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:31,620 INFO L225 Difference]: With dead ends: 147 [2022-11-19 07:42:31,620 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:31,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:42:31,622 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 21 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:31,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 468 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:42:31,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:31,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:31,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 58 states have internal predecessors, (65), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2022-11-19 07:42:31,632 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 79 [2022-11-19 07:42:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:31,633 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2022-11-19 07:42:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 07:42:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2022-11-19 07:42:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 07:42:31,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:31,635 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:31,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:42:31,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:31,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1888717682, now seen corresponding path program 1 times [2022-11-19 07:42:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:31,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135601893] [2022-11-19 07:42:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:31,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:32,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:32,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135601893] [2022-11-19 07:42:32,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135601893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:32,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881484050] [2022-11-19 07:42:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:32,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:32,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:32,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:32,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:42:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:33,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 2265 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:42:33,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:33,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:42:33,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881484050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:33,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:42:33,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-11-19 07:42:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818066861] [2022-11-19 07:42:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:33,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:33,214 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:33,604 INFO L93 Difference]: Finished difference Result 145 states and 177 transitions. [2022-11-19 07:42:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:33,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 101 [2022-11-19 07:42:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:33,606 INFO L225 Difference]: With dead ends: 145 [2022-11-19 07:42:33,606 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:33,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:42:33,608 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 3 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:33,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 397 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:33,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.1228070175438596) internal successors, (64), 58 states have internal predecessors, (64), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2022-11-19 07:42:33,618 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 101 [2022-11-19 07:42:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:33,619 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2022-11-19 07:42:33,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2022-11-19 07:42:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 07:42:33,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:33,628 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:33,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:33,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:33,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1217212988, now seen corresponding path program 1 times [2022-11-19 07:42:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:33,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153647819] [2022-11-19 07:42:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:34,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:34,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153647819] [2022-11-19 07:42:34,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153647819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:34,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906245491] [2022-11-19 07:42:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:34,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:34,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:34,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:34,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:42:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:35,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:42:35,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:35,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:42:35,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906245491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:35,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:42:35,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-19 07:42:35,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217792914] [2022-11-19 07:42:35,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:35,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:35,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:35,512 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:35,951 INFO L93 Difference]: Finished difference Result 145 states and 175 transitions. [2022-11-19 07:42:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:35,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 103 [2022-11-19 07:42:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:35,953 INFO L225 Difference]: With dead ends: 145 [2022-11-19 07:42:35,953 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:35,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:35,954 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 13 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:35,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 379 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:35,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.105263157894737) internal successors, (63), 58 states have internal predecessors, (63), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2022-11-19 07:42:35,964 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 103 [2022-11-19 07:42:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:35,964 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2022-11-19 07:42:35,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:35,965 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2022-11-19 07:42:35,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-19 07:42:35,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:35,966 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:35,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:36,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:42:36,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:36,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -392209450, now seen corresponding path program 1 times [2022-11-19 07:42:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:36,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249733661] [2022-11-19 07:42:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:37,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:37,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249733661] [2022-11-19 07:42:37,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249733661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:37,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413332622] [2022-11-19 07:42:37,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:37,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:37,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:37,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:37,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:42:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:37,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 2273 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:42:37,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:37,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:42:37,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413332622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:37,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:42:37,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-19 07:42:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665324033] [2022-11-19 07:42:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:37,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:37,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:37,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:37,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:37,766 INFO L87 Difference]: Start difference. First operand 103 states and 121 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:38,202 INFO L93 Difference]: Finished difference Result 145 states and 173 transitions. [2022-11-19 07:42:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:38,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 105 [2022-11-19 07:42:38,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:38,205 INFO L225 Difference]: With dead ends: 145 [2022-11-19 07:42:38,205 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:38,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:38,206 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 11 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:38,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 377 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:38,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.087719298245614) internal successors, (62), 58 states have internal predecessors, (62), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2022-11-19 07:42:38,221 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 105 [2022-11-19 07:42:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:38,221 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2022-11-19 07:42:38,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2022-11-19 07:42:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-19 07:42:38,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:38,224 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:38,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:38,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:38,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:38,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1948131836, now seen corresponding path program 1 times [2022-11-19 07:42:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:38,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203715474] [2022-11-19 07:42:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:39,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:39,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203715474] [2022-11-19 07:42:39,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203715474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:39,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828594039] [2022-11-19 07:42:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:39,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:39,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:39,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:42:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:39,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:42:39,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:42:39,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:42:39,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828594039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:39,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:42:39,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-19 07:42:39,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262553630] [2022-11-19 07:42:39,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:39,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:39,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:39,906 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:40,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:40,395 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2022-11-19 07:42:40,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:40,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 107 [2022-11-19 07:42:40,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:40,397 INFO L225 Difference]: With dead ends: 145 [2022-11-19 07:42:40,397 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 07:42:40,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:40,399 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 9 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:40,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 469 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:42:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 07:42:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-19 07:42:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 57 states have (on average 1.0701754385964912) internal successors, (61), 58 states have internal predecessors, (61), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-19 07:42:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2022-11-19 07:42:40,406 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 107 [2022-11-19 07:42:40,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:40,407 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2022-11-19 07:42:40,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:42:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2022-11-19 07:42:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-19 07:42:40,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:40,409 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:40,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:40,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:40,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1735061218, now seen corresponding path program 1 times [2022-11-19 07:42:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:40,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883537723] [2022-11-19 07:42:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-19 07:42:42,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:42,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883537723] [2022-11-19 07:42:42,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883537723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:42,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:42,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:42,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109325838] [2022-11-19 07:42:42,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:42,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:42:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:42:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:42:42,041 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:42:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:42,984 INFO L93 Difference]: Finished difference Result 154 states and 176 transitions. [2022-11-19 07:42:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:42:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 109 [2022-11-19 07:42:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:42,987 INFO L225 Difference]: With dead ends: 154 [2022-11-19 07:42:42,987 INFO L226 Difference]: Without dead ends: 95 [2022-11-19 07:42:42,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:42,989 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 1 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:42,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 774 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:42:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-19 07:42:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-11-19 07:42:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 28 states have call successors, (28), 14 states have call predecessors, (28), 14 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-19 07:42:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2022-11-19 07:42:42,995 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 109 [2022-11-19 07:42:42,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:42,996 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2022-11-19 07:42:42,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:42:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2022-11-19 07:42:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-19 07:42:42,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:42,998 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:42,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:42:42,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:42,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1261012771, now seen corresponding path program 1 times [2022-11-19 07:42:43,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:43,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762046576] [2022-11-19 07:42:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:43,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:42:43,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:43,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762046576] [2022-11-19 07:42:43,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762046576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:43,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:43,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:43,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779532876] [2022-11-19 07:42:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:43,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:42:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:42:43,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:42:43,627 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:42:43,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:43,890 INFO L93 Difference]: Finished difference Result 180 states and 203 transitions. [2022-11-19 07:42:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:42:43,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 113 [2022-11-19 07:42:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:43,892 INFO L225 Difference]: With dead ends: 180 [2022-11-19 07:42:43,892 INFO L226 Difference]: Without dead ends: 96 [2022-11-19 07:42:43,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:43,893 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:43,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 283 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:43,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-19 07:42:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-11-19 07:42:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 28 states have call successors, (28), 14 states have call predecessors, (28), 14 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-19 07:42:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2022-11-19 07:42:43,899 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 113 [2022-11-19 07:42:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:43,899 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2022-11-19 07:42:43,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:42:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2022-11-19 07:42:43,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-19 07:42:43,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:43,901 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:43,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:42:43,902 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:42:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 208029118, now seen corresponding path program 1 times [2022-11-19 07:42:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:43,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338753741] [2022-11-19 07:42:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:43,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:42:44,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:44,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338753741] [2022-11-19 07:42:44,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338753741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:44,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373162805] [2022-11-19 07:42:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:44,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:44,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:44,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61a0a1e-abb3-41dd-a517-a4174a2bdf7d/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:42:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:45,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:42:45,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:42:45,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:42:45,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373162805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1096354] [2022-11-19 07:42:45,550 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-19 07:42:45,550 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:45,556 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:45,563 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:45,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:42:48,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:49,254 INFO L217 Elim1Store]: Index analysis took 460 ms [2022-11-19 07:43:19,866 WARN L233 SmtUtils]: Spent 30.51s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:43:19,873 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-19 07:43:19,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-19 07:43:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:23,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19307 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 0 case distinctions, treesize of input 987 treesize of output 1574 [2022-11-19 07:45:57,446 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 [2022-11-19 07:45:57,450 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 16 treesize of output 12 [2022-11-19 07:45:57,469 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 [2022-11-19 07:45:57,474 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 [2022-11-19 07:45:57,489 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 [2022-11-19 07:45:57,497 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 66 treesize of output 65 [2022-11-19 07:45:57,506 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 64 treesize of output 63 [2022-11-19 07:45:57,514 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 64 treesize of output 63 [2022-11-19 07:45:57,540 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 [2022-11-19 07:45:57,546 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 16 treesize of output 12 [2022-11-19 07:45:57,552 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 [2022-11-19 07:45:57,560 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 [2022-11-19 07:46:01,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:01,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-19 07:46:02,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:02,768 INFO L217 Elim1Store]: Index analysis took 117 ms [2022-11-19 07:46:02,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 07:46:03,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:03,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:04,009 INFO L217 Elim1Store]: Index analysis took 106 ms [2022-11-19 07:46:04,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 07:46:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:16,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 07:46:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 07:46:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:17,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-19 07:46:25,592 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 [2022-11-19 07:46:25,597 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 [2022-11-19 07:46:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:27,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-19 07:46:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:27,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-19 07:46:32,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:32,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-19 07:46:32,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:32,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-19 07:46:34,070 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 19 treesize of output 1 [2022-11-19 07:46:34,127 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 19 treesize of output 1 [2022-11-19 07:46:34,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:46:34,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2022-11-19 07:46:34,775 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 [2022-11-19 07:46:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:34,843 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 55 treesize of output 36 [2022-11-19 07:46:34,931 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 [2022-11-19 07:46:35,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:35,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:46:35,681 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 11 treesize of output 7 [2022-11-19 07:46:35,684 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 [2022-11-19 07:46:35,688 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 11 treesize of output 7 [2022-11-19 07:46:35,692 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 [2022-11-19 07:46:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:36,127 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-19 07:46:36,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:36,191 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 26 [2022-11-19 07:46:37,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:37,356 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 26 [2022-11-19 07:46:37,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:46:37,551 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-19 07:46:39,187 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-19 07:46:39,295 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 23 [2022-11-19 07:46:40,407 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 23 [2022-11-19 07:46:40,505 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-19 07:46:42,559 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 19 treesize of output 1 [2022-11-19 07:46:42,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2175 treesize of output 2171 [2022-11-19 07:46:43,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2190 treesize of output 2186 [2022-11-19 07:46:44,203 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 19 treesize of output 1 [2022-11-19 07:48:24,004 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 67 for LOIs [2022-11-19 07:48:24,023 INFO L197 IcfgInterpreter]: Interpreting procedure aws_atomic_init_ptr with input of size 773 for LOIs [2022-11-19 07:48:28,132 INFO L197 IcfgInterpreter]: Interpreting procedure aws_ring_buffer_is_valid with input of size 769 for LOIs [2022-11-19 07:49:12,043 INFO L197 IcfgInterpreter]: Interpreting procedure aws_ring_buffer_check_atomic_ptr with input of size 78 for LOIs [2022-11-19 07:49:12,117 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mem_acquire with input of size 1462 for LOIs [2022-11-19 07:50:15,274 INFO L197 IcfgInterpreter]: Interpreting procedure aws_allocator_is_valid with input of size 1443 for LOIs [2022-11-19 07:50:31,314 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 3253 for LOIs [2022-11-19 07:50:44,556 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 2840 for LOIs [2022-11-19 07:52:14,900 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 [2022-11-19 07:52:14,908 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 [2022-11-19 07:52:14,916 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 16 treesize of output 12 [2022-11-19 07:52:14,925 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 [2022-11-19 07:52:14,935 INFO L197 IcfgInterpreter]: Interpreting procedure aws_atomic_load_ptr with input of size 44 for LOIs [2022-11-19 07:52:14,985 INFO L197 IcfgInterpreter]: Interpreting procedure aws_atomic_priv_xlate_order with input of size 40 for LOIs [2022-11-19 07:52:15,032 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 1461 for LOIs [2022-11-19 07:52:47,220 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 1439 for LOIs [2022-11-19 07:52:49,056 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 1461 for LOIs [2022-11-19 07:53:05,435 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 39 for LOIs [2022-11-19 07:53:05,438 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:54:48,097 WARN L233 SmtUtils]: Spent 1.70m on a formula simplification. DAG size of input: 2804 DAG size of output: 2420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:55:15,389 WARN L233 SmtUtils]: Spent 25.38s on a formula simplification. DAG size of input: 3253 DAG size of output: 1425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:55:44,487 WARN L233 SmtUtils]: Spent 24.97s on a formula simplification. DAG size of input: 3257 DAG size of output: 1430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)