./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0 --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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- 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-e04fb08 [2022-11-16 16:29:41,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:29:41,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:29:41,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:29:41,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:29:41,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:29:41,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:29:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:29:41,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:29:41,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:29:41,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:29:41,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:29:41,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:29:41,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:29:41,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:29:41,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:29:41,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:29:41,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:29:41,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:29:41,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:29:41,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:29:41,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:29:41,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:29:41,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:29:41,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:29:41,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:29:41,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:29:41,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:29:41,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:29:41,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:29:41,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:29:41,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:29:41,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:29:41,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:29:41,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:29:41,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:29:41,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:29:41,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:29:41,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:29:41,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:29:41,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:29:41,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:29:41,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:29:41,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:29:41,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:29:41,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:29:41,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:29:41,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:29:41,473 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:29:41,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:29:41,473 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:29:41,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:29:41,475 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:29:41,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:29:41,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:29:41,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:29:41,475 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:29:41,476 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:29:41,476 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:29:41,476 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:29:41,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:29:41,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:29:41,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:29:41,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:29:41,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:29:41,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:29:41,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:29:41,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:29:41,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:29:41,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:29:41,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:29:41,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:29:41,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:29:41,482 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:29:41,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:29:41,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:29:41,482 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:29:41,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:29:41,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:29:41,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:29:41,483 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2022-11-16 16:29:41,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:29:41,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:29:41,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:29:41,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:29:41,883 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:29:41,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2022-11-16 16:29:41,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/data/113f297c3/e90acb2348074184832327445b0e4952/FLAG41f361521 [2022-11-16 16:29:43,004 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:29:43,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2022-11-16 16:29:43,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/data/113f297c3/e90acb2348074184832327445b0e4952/FLAG41f361521 [2022-11-16 16:29:43,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/data/113f297c3/e90acb2348074184832327445b0e4952 [2022-11-16 16:29:43,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:29:43,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:29:43,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:29:43,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:29:43,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:29:43,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:29:43" (1/1) ... [2022-11-16 16:29:43,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662f0562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:43, skipping insertion in model container [2022-11-16 16:29:43,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:29:43" (1/1) ... [2022-11-16 16:29:43,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:29:43,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:29:43,933 WARN L229 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2022-11-16 16:29:43,942 WARN L229 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2022-11-16 16:29:45,045 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,046 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,046 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,047 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,048 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,063 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,064 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,066 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,066 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,471 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 16:29:45,472 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 16:29:45,474 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 16:29:45,475 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 16:29:45,477 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 16:29:45,477 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 16:29:45,478 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 16:29:45,479 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 16:29:45,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 16:29:45,481 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 16:29:45,673 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 16:29:45,771 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,778 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:45,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:29:46,052 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:29:46,080 WARN L229 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2022-11-16 16:29:46,083 WARN L229 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_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2022-11-16 16:29:46,151 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,151 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,156 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,157 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,158 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,172 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,172 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,174 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,174 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,227 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 16:29:46,228 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 16:29:46,229 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 16:29:46,230 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 16:29:46,231 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 16:29:46,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 16:29:46,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 16:29:46,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 16:29:46,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 16:29:46,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 16:29:46,256 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 16:29:46,318 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,318 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 16:29:46,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:29:46,744 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:29:46,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46 WrapperNode [2022-11-16 16:29:46,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:29:46,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:29:46,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:29:46,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:29:46,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,942 INFO L138 Inliner]: procedures = 693, calls = 2780, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 813 [2022-11-16 16:29:46,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:29:46,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:29:46,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:29:46,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:29:46,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:29:47,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:29:47,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:29:47,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:29:47,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:47,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:29:47,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:29:47,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:29:47,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:29:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-16 16:29:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-16 16:29:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2022-11-16 16:29:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2022-11-16 16:29:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-16 16:29:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-16 16:29:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 16:29:47,166 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 16:29:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 16:29:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:29:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 16:29:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 16:29:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:29:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:29:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:29:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:29:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:29:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 16:29:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 16:29:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 16:29:47,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-16 16:29:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-16 16:29:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:29:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:29:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:29:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 16:29:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 16:29:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 16:29:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 16:29:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:29:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:29:47,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:29:47,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:29:49,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:29:49,647 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:29:49,647 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:29:49,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:29:49 BoogieIcfgContainer [2022-11-16 16:29:49,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:29:49,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:29:49,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:29:49,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:29:49,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:29:43" (1/3) ... [2022-11-16 16:29:49,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d5ab3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:29:49, skipping insertion in model container [2022-11-16 16:29:49,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (2/3) ... [2022-11-16 16:29:49,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d5ab3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:29:49, skipping insertion in model container [2022-11-16 16:29:49,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:29:49" (3/3) ... [2022-11-16 16:29:49,663 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2022-11-16 16:29:49,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:29:49,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:29:49,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:29:49,780 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;@7a09daf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:29:49,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:29:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-16 16:29:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-16 16:29:49,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:49,800 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:49,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:49,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:49,808 INFO L85 PathProgramCache]: Analyzing trace with hash 361995466, now seen corresponding path program 1 times [2022-11-16 16:29:49,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:49,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256311658] [2022-11-16 16:29:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:49,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:29:51,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:51,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256311658] [2022-11-16 16:29:51,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256311658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:51,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:51,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:29:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092024642] [2022-11-16 16:29:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:51,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:29:51,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:29:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:51,167 INFO L87 Difference]: Start difference. First operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 16:29:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:51,462 INFO L93 Difference]: Finished difference Result 162 states and 228 transitions. [2022-11-16 16:29:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:29:51,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2022-11-16 16:29:51,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:51,477 INFO L225 Difference]: With dead ends: 162 [2022-11-16 16:29:51,477 INFO L226 Difference]: Without dead ends: 116 [2022-11-16 16:29:51,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:51,485 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:51,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 370 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:29:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-16 16:29:51,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-11-16 16:29:51,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-11-16 16:29:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 154 transitions. [2022-11-16 16:29:51,556 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 154 transitions. Word has length 41 [2022-11-16 16:29:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:51,557 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 154 transitions. [2022-11-16 16:29:51,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 16:29:51,558 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 154 transitions. [2022-11-16 16:29:51,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-16 16:29:51,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:51,566 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:51,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:29:51,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:51,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:51,568 INFO L85 PathProgramCache]: Analyzing trace with hash 117861261, now seen corresponding path program 1 times [2022-11-16 16:29:51,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:51,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726903411] [2022-11-16 16:29:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:51,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:52,189 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:29:52,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:52,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726903411] [2022-11-16 16:29:52,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726903411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:52,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:52,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:29:52,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580070315] [2022-11-16 16:29:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:52,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:29:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:29:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:52,196 INFO L87 Difference]: Start difference. First operand 113 states and 154 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 16:29:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:52,390 INFO L93 Difference]: Finished difference Result 135 states and 181 transitions. [2022-11-16 16:29:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:29:52,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-11-16 16:29:52,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:52,399 INFO L225 Difference]: With dead ends: 135 [2022-11-16 16:29:52,400 INFO L226 Difference]: Without dead ends: 119 [2022-11-16 16:29:52,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:29:52,405 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:52,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:29:52,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-16 16:29:52,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-16 16:29:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 38 states have call successors, (38), 10 states have call predecessors, (38), 11 states have return successors, (39), 39 states have call predecessors, (39), 37 states have call successors, (39) [2022-11-16 16:29:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 161 transitions. [2022-11-16 16:29:52,443 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 161 transitions. Word has length 45 [2022-11-16 16:29:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:52,444 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 161 transitions. [2022-11-16 16:29:52,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 16:29:52,446 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 161 transitions. [2022-11-16 16:29:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-16 16:29:52,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:52,456 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:52,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:29:52,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:52,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1715237152, now seen corresponding path program 1 times [2022-11-16 16:29:52,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:52,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138263847] [2022-11-16 16:29:52,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:52,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 16:29:53,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138263847] [2022-11-16 16:29:53,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138263847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:53,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:53,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:29:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767214379] [2022-11-16 16:29:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:53,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:29:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:29:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:29:53,685 INFO L87 Difference]: Start difference. First operand 119 states and 161 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-16 16:29:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:53,963 INFO L93 Difference]: Finished difference Result 143 states and 189 transitions. [2022-11-16 16:29:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:29:53,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 46 [2022-11-16 16:29:53,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:53,966 INFO L225 Difference]: With dead ends: 143 [2022-11-16 16:29:53,966 INFO L226 Difference]: Without dead ends: 126 [2022-11-16 16:29:53,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:29:53,971 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 18 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:53,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 608 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:29:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-16 16:29:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2022-11-16 16:29:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 72 states have internal predecessors, (86), 40 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 38 states have call successors, (40) [2022-11-16 16:29:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 166 transitions. [2022-11-16 16:29:54,004 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 166 transitions. Word has length 46 [2022-11-16 16:29:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:54,005 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 166 transitions. [2022-11-16 16:29:54,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-16 16:29:54,006 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 166 transitions. [2022-11-16 16:29:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-16 16:29:54,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:54,016 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2022-11-16 16:29:54,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:29:54,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:54,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1381576744, now seen corresponding path program 1 times [2022-11-16 16:29:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:54,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286276530] [2022-11-16 16:29:54,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:54,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-16 16:29:54,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:54,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286276530] [2022-11-16 16:29:54,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286276530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:29:54,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:29:54,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:29:54,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299718184] [2022-11-16 16:29:54,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:29:54,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:29:54,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:29:54,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:29:54,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:29:54,905 INFO L87 Difference]: Start difference. First operand 123 states and 166 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 16:29:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:29:55,182 INFO L93 Difference]: Finished difference Result 179 states and 236 transitions. [2022-11-16 16:29:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:29:55,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 62 [2022-11-16 16:29:55,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:29:55,191 INFO L225 Difference]: With dead ends: 179 [2022-11-16 16:29:55,191 INFO L226 Difference]: Without dead ends: 139 [2022-11-16 16:29:55,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:29:55,195 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 28 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:29:55,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 614 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:29:55,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-16 16:29:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2022-11-16 16:29:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 80 states have internal predecessors, (96), 41 states have call successors, (41), 11 states have call predecessors, (41), 13 states have return successors, (42), 42 states have call predecessors, (42), 40 states have call successors, (42) [2022-11-16 16:29:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 179 transitions. [2022-11-16 16:29:55,259 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 179 transitions. Word has length 62 [2022-11-16 16:29:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:29:55,260 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 179 transitions. [2022-11-16 16:29:55,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 16:29:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 179 transitions. [2022-11-16 16:29:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 16:29:55,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:29:55,264 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:29:55,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:29:55,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:29:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:29:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1206108869, now seen corresponding path program 1 times [2022-11-16 16:29:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:29:55,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725332684] [2022-11-16 16:29:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:29:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:57,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 16:29:57,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:29:57,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725332684] [2022-11-16 16:29:57,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725332684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:29:57,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515673665] [2022-11-16 16:29:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:57,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:29:57,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:29:57,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:29:57,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea18db96-56e0-4ebb-97b5-c15a8087a7d1/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:29:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:58,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-16 16:29:58,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:29:59,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 60 [2022-11-16 16:29:59,109 INFO L321 Elim1Store]: treesize reduction 15, result has 53.1 percent of original size [2022-11-16 16:29:59,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 124 [2022-11-16 16:29:59,268 INFO L321 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2022-11-16 16:29:59,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 91 [2022-11-16 16:30:02,309 INFO L321 Elim1Store]: treesize reduction 50, result has 57.3 percent of original size [2022-11-16 16:30:02,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 222 treesize of output 175 [2022-11-16 16:30:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 16:30:03,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:30:07,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2022-11-16 16:30:07,426 INFO L321 Elim1Store]: treesize reduction 14, result has 76.7 percent of original size [2022-11-16 16:30:07,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 120 [2022-11-16 16:30:07,829 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 16:30:07,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 306 treesize of output 316 [2022-11-16 16:30:08,573 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 16:30:08,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515673665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:30:08,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434771214] [2022-11-16 16:30:08,605 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-16 16:30:08,606 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:30:08,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:30:08,617 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:30:08,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:30:14,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:14,782 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 90 treesize of output 81 [2022-11-16 16:30:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:17,084 INFO L217 Elim1Store]: Index analysis took 917 ms [2022-11-16 16:30:17,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 263 select indices, 263 select index equivalence classes, 32654 disjoint index pairs (out of 34453 index pairs), introduced 263 new quantified variables, introduced 0 case distinctions, treesize of input 2369 treesize of output 3143 [2022-11-16 16:30:20,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:20,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:30:20,327 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 90 treesize of output 81 [2022-11-16 16:30:20,819 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 [2022-11-16 16:31:31,718 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 [2022-11-16 16:31:31,724 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 [2022-11-16 16:31:31,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-16 16:31:31,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-16 16:31:31,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-16 16:31:31,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:31:31,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-11-16 16:31:34,548 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:31:44,993 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:32:05,569 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 3311 for LOIs [2022-11-16 16:33:52,802 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 3350 for LOIs [2022-11-16 16:34:10,355 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 3296 for LOIs [2022-11-16 16:34:15,524 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 3312 for LOIs [2022-11-16 16:35:09,571 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3380 for LOIs [2022-11-16 16:35:49,380 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:37:18,762 WARN L233 SmtUtils]: Spent 1.44m on a formula simplification that was a NOOP. DAG size: 3292 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:40:25,747 WARN L233 SmtUtils]: Spent 2.89m on a formula simplification. DAG size of input: 3303 DAG size of output: 3300 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:43:10,530 WARN L233 SmtUtils]: Spent 2.69m on a formula simplification. DAG size of input: 3300 DAG size of output: 3297 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)