./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI --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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- 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-5e519f3 [2022-11-03 03:52:17,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:52:17,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:52:17,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:52:17,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:52:17,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:52:17,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:52:17,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:52:17,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:52:17,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:52:17,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:52:17,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:52:17,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:52:17,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:52:17,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:52:17,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:52:17,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:52:17,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:52:17,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:52:17,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:52:17,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:52:17,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:52:17,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:52:17,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:52:17,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:52:17,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:52:17,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:52:17,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:52:17,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:52:17,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:52:17,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:52:17,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:52:17,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:52:17,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:52:17,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:52:17,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:52:17,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:52:17,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:52:17,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:52:17,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:52:17,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:52:17,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:52:17,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:52:17,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:52:17,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:52:17,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:52:17,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:52:17,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:52:17,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:52:17,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:52:17,239 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:52:17,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:52:17,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:52:17,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:52:17,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:52:17,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:52:17,242 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:52:17,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:52:17,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:52:17,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:52:17,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:52:17,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:52:17,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:52:17,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:52:17,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:52:17,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:52:17,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:52:17,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:52:17,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:52:17,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:52:17,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:52:17,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:17,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:52:17,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:52:17,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:52:17,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:52:17,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:52:17,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:52:17,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:52:17,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:52:17,248 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_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2022-11-03 03:52:17,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:52:17,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:52:17,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:52:17,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:52:17,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:52:17,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-03 03:52:17,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/data/52f38ad21/922bd14bd91d41a692dcdd068c670622/FLAGca2a1e2b6 [2022-11-03 03:52:18,572 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:52:18,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-03 03:52:18,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/data/52f38ad21/922bd14bd91d41a692dcdd068c670622/FLAGca2a1e2b6 [2022-11-03 03:52:18,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/data/52f38ad21/922bd14bd91d41a692dcdd068c670622 [2022-11-03 03:52:18,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:52:18,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:52:18,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:18,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:52:18,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:52:18,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:18" (1/1) ... [2022-11-03 03:52:18,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6b3ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:18, skipping insertion in model container [2022-11-03 03:52:18,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:18" (1/1) ... [2022-11-03 03:52:19,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:52:19,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:52:19,407 WARN L230 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_f6d0755e-688f-4442-9508-4907e4f2fa8d/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-03 03:52:19,417 WARN L230 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_f6d0755e-688f-4442-9508-4907e4f2fa8d/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-03 03:52:20,638 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,638 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,641 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,643 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,645 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,672 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,673 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,676 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:20,677 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,176 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:52:21,178 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:52:21,183 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:52:21,186 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:52:21,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:52:21,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:52:21,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:52:21,200 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:52:21,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:52:21,206 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:52:21,402 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:52:21,578 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,579 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:21,784 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:52:21,817 WARN L230 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_f6d0755e-688f-4442-9508-4907e4f2fa8d/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-03 03:52:21,818 WARN L230 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_f6d0755e-688f-4442-9508-4907e4f2fa8d/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-03 03:52:21,882 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,883 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,884 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,884 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,885 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,905 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,909 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,911 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,911 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:21,979 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:52:21,980 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:52:21,981 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:52:21,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:52:21,983 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:52:21,984 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:52:21,985 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:52:21,985 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:52:21,986 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:52:21,992 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:52:22,024 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:52:22,149 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:22,150 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:52:22,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:52:22,379 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:52:22,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22 WrapperNode [2022-11-03 03:52:22,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:52:22,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:22,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:52:22,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:52:22,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,596 INFO L138 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 856 [2022-11-03 03:52:22,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:52:22,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:52:22,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:52:22,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:52:22,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:52:22,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:52:22,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:52:22,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:52:22,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (1/1) ... [2022-11-03 03:52:22,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:52:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:22,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:52:22,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:52:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 03:52:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 03:52:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:52:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 03:52:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 03:52:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:52:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:52:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:52:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:52:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:52:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:52:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-03 03:52:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-03 03:52:22,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:52:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:52:22,821 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 03:52:22,821 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 03:52:22,821 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 03:52:22,821 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 03:52:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:52:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:52:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-03 03:52:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-03 03:52:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:52:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:52:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-03 03:52:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-03 03:52:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:52:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 03:52:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 03:52:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:52:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:52:23,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:52:23,207 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:52:24,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:52:25,266 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:52:25,267 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:52:25,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:25 BoogieIcfgContainer [2022-11-03 03:52:25,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:52:25,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:52:25,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:52:25,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:52:25,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:52:18" (1/3) ... [2022-11-03 03:52:25,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d377d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:25, skipping insertion in model container [2022-11-03 03:52:25,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:22" (2/3) ... [2022-11-03 03:52:25,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d377d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:25, skipping insertion in model container [2022-11-03 03:52:25,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:25" (3/3) ... [2022-11-03 03:52:25,287 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2022-11-03 03:52:25,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:52:25,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:52:25,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:52:25,419 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;@a6682b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:52:25,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:52:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 03:52:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-03 03:52:25,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:25,436 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:52:25,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1762663939, now seen corresponding path program 1 times [2022-11-03 03:52:25,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:25,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754568945] [2022-11-03 03:52:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:25,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:52:43,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:43,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754568945] [2022-11-03 03:52:43,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754568945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:52:43,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779589294] [2022-11-03 03:52:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:43,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:43,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:43,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:43,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6d0755e-688f-4442-9508-4907e4f2fa8d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:52:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:44,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2586 conjuncts, 124 conjunts are in the unsatisfiable core [2022-11-03 03:52:44,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:44,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:52:45,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:52:45,533 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 03:52:45,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 03:52:45,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-03 03:52:45,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 03:52:48,234 INFO L356 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-03 03:52:48,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 30 [2022-11-03 03:52:48,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-03 03:52:48,881 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 03:52:48,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-03 03:52:48,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2022-11-03 03:52:53,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 109 [2022-11-03 03:52:53,672 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:52:53,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 148 treesize of output 124 [2022-11-03 03:52:53,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2022-11-03 03:52:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:52:53,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:52:56,801 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-03 04:00:55,643 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.