./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:32:22,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:22,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:22,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:22,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:22,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:22,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:22,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:22,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:22,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:22,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:22,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:22,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:22,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:22,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:22,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:22,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:22,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:22,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:22,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:22,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:22,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:22,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:22,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:22,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:22,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:22,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:22,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:22,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:22,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:22,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:22,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:22,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:22,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:22,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:22,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:22,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:22,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:22,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:22,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:22,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:22,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:32:22,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:22,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:22,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:22,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:22,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:32:22,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:32:22,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:22,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:22,332 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:22,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:22,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:22,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:22,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:32:22,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:32:22,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:32:22,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:32:22,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:22,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:32:22,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:22,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:22,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:32:22,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:22,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:22,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:32:22,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:32:22,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:32:22,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:32:22,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:32:22,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:32:22,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:32:22,339 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_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2022-11-18 19:32:22,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:22,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:22,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:22,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:22,645 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:22,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2022-11-18 19:32:22,728 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/data/51ee639c3/65b2730e2d8447a1aeab17c9d73ec5af/FLAG602421878 [2022-11-18 19:32:23,654 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:23,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2022-11-18 19:32:23,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/data/51ee639c3/65b2730e2d8447a1aeab17c9d73ec5af/FLAG602421878 [2022-11-18 19:32:24,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/data/51ee639c3/65b2730e2d8447a1aeab17c9d73ec5af [2022-11-18 19:32:24,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:24,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:24,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:24,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:24,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:24,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:24" (1/1) ... [2022-11-18 19:32:24,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b11bbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:24, skipping insertion in model container [2022-11-18 19:32:24,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:24" (1/1) ... [2022-11-18 19:32:24,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:24,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:24,671 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2022-11-18 19:32:24,679 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2022-11-18 19:32:25,840 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,847 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,848 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,850 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,852 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,864 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,869 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,871 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,874 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,879 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,881 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,881 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:25,883 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:26,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 19:32:26,404 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 19:32:26,405 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 19:32:26,406 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 19:32:26,407 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 19:32:26,408 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 19:32:26,408 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 19:32:26,409 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 19:32:26,409 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 19:32:26,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 19:32:26,582 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 19:32:27,033 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,035 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,075 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,076 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,082 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,082 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,096 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,097 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,097 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,098 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,098 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,099 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,099 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:27,163 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:27,177 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2022-11-18 19:32:27,177 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2022-11-18 19:32:27,207 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,208 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,208 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,209 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,209 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,215 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,216 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,217 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,218 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,219 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,219 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,220 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,220 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 19:32:27,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 19:32:27,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 19:32:27,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 19:32:27,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 19:32:27,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 19:32:27,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 19:32:27,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 19:32:27,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 19:32:27,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 19:32:27,273 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 19:32:27,406 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,407 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,415 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,416 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,419 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,420 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,430 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,431 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,431 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,432 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,432 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,433 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,433 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:32:27,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:27,772 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:27,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27 WrapperNode [2022-11-18 19:32:27,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:27,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:27,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:27,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:27,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:27,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,023 INFO L138 Inliner]: procedures = 774, calls = 2451, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 640 [2022-11-18 19:32:28,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:28,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:28,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:28,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:28,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:28,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:28,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:28,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:28,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (1/1) ... [2022-11-18 19:32:28,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:28,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:28,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:28,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-18 19:32:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:32:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 19:32:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 19:32:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 19:32:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 19:32:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-18 19:32:28,236 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-18 19:32:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:32:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2022-11-18 19:32:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2022-11-18 19:32:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:32:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 19:32:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 19:32:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 19:32:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 19:32:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:32:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-18 19:32:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-18 19:32:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:32:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-18 19:32:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-18 19:32:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:32:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-18 19:32:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-18 19:32:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:32:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-18 19:32:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-18 19:32:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2022-11-18 19:32:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2022-11-18 19:32:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:32:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:32:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2022-11-18 19:32:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2022-11-18 19:32:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-18 19:32:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-18 19:32:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:32:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 19:32:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 19:32:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-18 19:32:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-18 19:32:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:32:28,694 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:28,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:30,021 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:30,028 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:30,028 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:32:30,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:30 BoogieIcfgContainer [2022-11-18 19:32:30,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:30,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:32:30,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:32:30,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:32:30,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:24" (1/3) ... [2022-11-18 19:32:30,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d4967b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:30, skipping insertion in model container [2022-11-18 19:32:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:27" (2/3) ... [2022-11-18 19:32:30,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d4967b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:30, skipping insertion in model container [2022-11-18 19:32:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:30" (3/3) ... [2022-11-18 19:32:30,048 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2022-11-18 19:32:30,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:32:30,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:32:30,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:32:30,165 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=PETRI_NET, 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;@6a4679e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:32:30,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:32:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-11-18 19:32:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-18 19:32:30,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:30,194 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:30,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:30,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:30,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1338571704, now seen corresponding path program 1 times [2022-11-18 19:32:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:30,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683698839] [2022-11-18 19:32:30,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:30,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:30,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683698839] [2022-11-18 19:32:30,761 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:32:30,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534638830] [2022-11-18 19:32:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:30,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:30,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:30,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:30,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:32:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:31,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:32:31,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-18 19:32:31,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:31,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534638830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:31,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:31,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:32:31,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409081234] [2022-11-18 19:32:31,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:31,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:32:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:31,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:32:31,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:31,707 INFO L87 Difference]: Start difference. First operand has 167 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:32:31,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:31,784 INFO L93 Difference]: Finished difference Result 326 states and 449 transitions. [2022-11-18 19:32:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:32:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 154 [2022-11-18 19:32:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:31,804 INFO L225 Difference]: With dead ends: 326 [2022-11-18 19:32:31,804 INFO L226 Difference]: Without dead ends: 161 [2022-11-18 19:32:31,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:32:31,830 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:31,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:32:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-18 19:32:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-18 19:32:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 102 states have internal predecessors, (124), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-18 19:32:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 209 transitions. [2022-11-18 19:32:31,882 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 209 transitions. Word has length 154 [2022-11-18 19:32:31,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:31,883 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 209 transitions. [2022-11-18 19:32:31,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:32:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 209 transitions. [2022-11-18 19:32:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-18 19:32:31,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:31,887 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:31,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:32,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 19:32:32,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:32,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:32,098 INFO L85 PathProgramCache]: Analyzing trace with hash 539862202, now seen corresponding path program 1 times [2022-11-18 19:32:32,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:32,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870830107] [2022-11-18 19:32:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:32,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:32,225 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:32,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758182774] [2022-11-18 19:32:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:32,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:32,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:32:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:32,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:32:32,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 19:32:33,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:33,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:33,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870830107] [2022-11-18 19:32:33,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:33,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758182774] [2022-11-18 19:32:33,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758182774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:33,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:33,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:32:33,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123499040] [2022-11-18 19:32:33,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:33,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:32:33,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:33,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:32:33,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:32:33,201 INFO L87 Difference]: Start difference. First operand 161 states and 209 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 19:32:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:33,500 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2022-11-18 19:32:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:32:33,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 154 [2022-11-18 19:32:33,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:33,506 INFO L225 Difference]: With dead ends: 297 [2022-11-18 19:32:33,506 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 19:32:33,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:32:33,508 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 173 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:33,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 646 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:32:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 19:32:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-18 19:32:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 102 states have (on average 1.2254901960784315) internal successors, (125), 104 states have internal predecessors, (125), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2022-11-18 19:32:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 213 transitions. [2022-11-18 19:32:33,541 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 213 transitions. Word has length 154 [2022-11-18 19:32:33,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:33,541 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 213 transitions. [2022-11-18 19:32:33,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 19:32:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2022-11-18 19:32:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-18 19:32:33,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:33,545 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:33,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:33,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:33,755 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:33,756 INFO L85 PathProgramCache]: Analyzing trace with hash 706357182, now seen corresponding path program 1 times [2022-11-18 19:32:33,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553404055] [2022-11-18 19:32:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:33,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:33,851 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:33,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477551670] [2022-11-18 19:32:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:33,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:33,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:33,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:33,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:32:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:34,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:32:34,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-18 19:32:34,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:32:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-18 19:32:34,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:34,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553404055] [2022-11-18 19:32:34,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:34,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477551670] [2022-11-18 19:32:34,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477551670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:32:34,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:32:34,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-18 19:32:34,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898727470] [2022-11-18 19:32:34,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:32:34,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:32:34,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:32:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:32:34,957 INFO L87 Difference]: Start difference. First operand 163 states and 213 transitions. Second operand has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 8 states have call successors, (48), 5 states have call predecessors, (48), 4 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) [2022-11-18 19:32:35,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:35,428 INFO L93 Difference]: Finished difference Result 249 states and 329 transitions. [2022-11-18 19:32:35,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:32:35,429 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 8 states have call successors, (48), 5 states have call predecessors, (48), 4 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) Word has length 155 [2022-11-18 19:32:35,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:35,431 INFO L225 Difference]: With dead ends: 249 [2022-11-18 19:32:35,431 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 19:32:35,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:32:35,433 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 310 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:35,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1071 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:32:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 19:32:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-18 19:32:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 102 states have (on average 1.2254901960784315) internal successors, (125), 104 states have internal predecessors, (125), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 42 states have call predecessors, (43), 42 states have call successors, (43) [2022-11-18 19:32:35,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 211 transitions. [2022-11-18 19:32:35,462 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 211 transitions. Word has length 155 [2022-11-18 19:32:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:35,465 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 211 transitions. [2022-11-18 19:32:35,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 8 states have call successors, (48), 5 states have call predecessors, (48), 4 states have return successors, (44), 6 states have call predecessors, (44), 8 states have call successors, (44) [2022-11-18 19:32:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 211 transitions. [2022-11-18 19:32:35,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 19:32:35,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:35,474 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:35,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:35,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1731864020, now seen corresponding path program 2 times [2022-11-18 19:32:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:35,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434842833] [2022-11-18 19:32:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:35,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:35,825 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:35,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735480566] [2022-11-18 19:32:35,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:32:35,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:35,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:35,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:35,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:32:36,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:32:36,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:32:36,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:32:36,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 6 proven. 122 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 19:32:37,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:32:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-18 19:32:37,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:37,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434842833] [2022-11-18 19:32:37,393 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:37,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735480566] [2022-11-18 19:32:37,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735480566] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 19:32:37,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:32:37,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 17 [2022-11-18 19:32:37,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343591859] [2022-11-18 19:32:37,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:37,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:32:37,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:37,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:32:37,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:32:37,396 INFO L87 Difference]: Start difference. First operand 163 states and 211 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 8 states have internal predecessors, (58), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 19:32:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:37,994 INFO L93 Difference]: Finished difference Result 231 states and 301 transitions. [2022-11-18 19:32:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:32:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 8 states have internal predecessors, (58), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) Word has length 156 [2022-11-18 19:32:37,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:37,997 INFO L225 Difference]: With dead ends: 231 [2022-11-18 19:32:37,997 INFO L226 Difference]: Without dead ends: 161 [2022-11-18 19:32:37,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:32:37,999 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 226 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:37,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1137 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:32:38,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-18 19:32:38,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-18 19:32:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 102 states have internal predecessors, (123), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-18 19:32:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 208 transitions. [2022-11-18 19:32:38,017 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 208 transitions. Word has length 156 [2022-11-18 19:32:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:38,018 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 208 transitions. [2022-11-18 19:32:38,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 8 states have internal predecessors, (58), 6 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 19:32:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 208 transitions. [2022-11-18 19:32:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-18 19:32:38,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:38,023 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:38,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:38,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:38,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:38,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:38,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2064715578, now seen corresponding path program 1 times [2022-11-18 19:32:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:38,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117699850] [2022-11-18 19:32:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:38,337 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:32:38,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156922828] [2022-11-18 19:32:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:38,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:38,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:38,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:38,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:32:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:39,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:32:39,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-18 19:32:39,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:39,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:39,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117699850] [2022-11-18 19:32:39,034 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:32:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156922828] [2022-11-18 19:32:39,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156922828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:39,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:39,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:32:39,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323695639] [2022-11-18 19:32:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:39,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:32:39,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:32:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:32:39,036 INFO L87 Difference]: Start difference. First operand 161 states and 208 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:32:39,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:39,076 INFO L93 Difference]: Finished difference Result 315 states and 408 transitions. [2022-11-18 19:32:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:32:39,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155 [2022-11-18 19:32:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:39,082 INFO L225 Difference]: With dead ends: 315 [2022-11-18 19:32:39,082 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 19:32:39,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:32:39,085 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:39,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 815 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:32:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 19:32:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-18 19:32:39,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 106 states have internal predecessors, (127), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2022-11-18 19:32:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 213 transitions. [2022-11-18 19:32:39,109 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 213 transitions. Word has length 155 [2022-11-18 19:32:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:39,110 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 213 transitions. [2022-11-18 19:32:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:32:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 213 transitions. [2022-11-18 19:32:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-18 19:32:39,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:39,113 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:39,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:39,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:39,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:39,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1425847546, now seen corresponding path program 1 times [2022-11-18 19:32:39,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:39,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771600717] [2022-11-18 19:32:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:39,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:32:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:32:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:32:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:40,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:32:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:32:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:32:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:32:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:32:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 19:32:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 19:32:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 19:32:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 19:32:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 19:32:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 19:32:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:32:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:32:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-18 19:32:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:41,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771600717] [2022-11-18 19:32:41,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771600717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:32:41,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143321950] [2022-11-18 19:32:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:41,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:41,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:41,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:41,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:32:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:42,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 19:32:42,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:42,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:32:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-18 19:32:42,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:42,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143321950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:42,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:32:42,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2022-11-18 19:32:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926917801] [2022-11-18 19:32:42,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:42,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:32:42,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:42,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:32:42,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:32:42,794 INFO L87 Difference]: Start difference. First operand 166 states and 213 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 19:32:42,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:42,881 INFO L93 Difference]: Finished difference Result 320 states and 410 transitions. [2022-11-18 19:32:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:32:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 167 [2022-11-18 19:32:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:42,886 INFO L225 Difference]: With dead ends: 320 [2022-11-18 19:32:42,886 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 19:32:42,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:32:42,891 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 20 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:42,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 989 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-11-18 19:32:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 19:32:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-18 19:32:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 114 states have internal predecessors, (137), 43 states have call successors, (43), 17 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-18 19:32:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 224 transitions. [2022-11-18 19:32:42,912 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 224 transitions. Word has length 167 [2022-11-18 19:32:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:42,913 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 224 transitions. [2022-11-18 19:32:42,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 9 states have internal predecessors, (85), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 19:32:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 224 transitions. [2022-11-18 19:32:42,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-18 19:32:42,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:42,916 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:42,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:43,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:43,126 INFO L85 PathProgramCache]: Analyzing trace with hash -440861128, now seen corresponding path program 1 times [2022-11-18 19:32:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:43,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912559203] [2022-11-18 19:32:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:32:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:32:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:32:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:32:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:32:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:32:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:32:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 19:32:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 19:32:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 19:32:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 19:32:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 19:32:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 19:32:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 19:32:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:32:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:32:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-18 19:32:44,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:44,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912559203] [2022-11-18 19:32:44,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912559203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:32:44,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930419356] [2022-11-18 19:32:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:44,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:44,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:44,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:32:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:44,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:32:44,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-18 19:32:44,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:32:44,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930419356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:44,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:32:44,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2022-11-18 19:32:44,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571678776] [2022-11-18 19:32:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:44,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:32:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:44,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:32:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:32:44,911 INFO L87 Difference]: Start difference. First operand 175 states and 224 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-18 19:32:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:45,135 INFO L93 Difference]: Finished difference Result 324 states and 418 transitions. [2022-11-18 19:32:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:32:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 167 [2022-11-18 19:32:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:32:45,138 INFO L225 Difference]: With dead ends: 324 [2022-11-18 19:32:45,138 INFO L226 Difference]: Without dead ends: 177 [2022-11-18 19:32:45,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:32:45,140 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 214 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:32:45,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 680 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:32:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-18 19:32:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-18 19:32:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 115 states have internal predecessors, (137), 44 states have call successors, (44), 17 states have call predecessors, (44), 18 states have return successors, (46), 44 states have call predecessors, (46), 43 states have call successors, (46) [2022-11-18 19:32:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 227 transitions. [2022-11-18 19:32:45,155 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 227 transitions. Word has length 167 [2022-11-18 19:32:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:32:45,156 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 227 transitions. [2022-11-18 19:32:45,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-18 19:32:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 227 transitions. [2022-11-18 19:32:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 19:32:45,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:32:45,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:45,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:32:45,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:32:45,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:32:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash -529280984, now seen corresponding path program 1 times [2022-11-18 19:32:45,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:45,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261605598] [2022-11-18 19:32:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:45,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:32:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:32:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:32:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:32:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:32:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:32:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:32:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:32:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 19:32:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 19:32:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 19:32:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 19:32:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:32:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 19:32:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 19:32:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:32:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 19:32:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:32:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:32:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:32:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-18 19:32:46,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:46,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261605598] [2022-11-18 19:32:46,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261605598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:32:46,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592057274] [2022-11-18 19:32:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:46,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:32:46,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:46,627 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:32:46,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:32:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:47,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 2616 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 19:32:47,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:32:49,557 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-18 19:32:57,634 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:33:05,704 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:33:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-18 19:33:05,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:05,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592057274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:05,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:05,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-11-18 19:33:05,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946117683] [2022-11-18 19:33:05,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:05,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:33:05,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:33:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=202, Unknown=3, NotChecked=28, Total=272 [2022-11-18 19:33:05,745 INFO L87 Difference]: Start difference. First operand 177 states and 227 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 19:33:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:06,100 INFO L93 Difference]: Finished difference Result 331 states and 436 transitions. [2022-11-18 19:33:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:33:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 173 [2022-11-18 19:33:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:06,103 INFO L225 Difference]: With dead ends: 331 [2022-11-18 19:33:06,103 INFO L226 Difference]: Without dead ends: 180 [2022-11-18 19:33:06,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=54, Invalid=253, Unknown=3, NotChecked=32, Total=342 [2022-11-18 19:33:06,105 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 5 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 304 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:06,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1123 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 304 Unchecked, 0.2s Time] [2022-11-18 19:33:06,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-18 19:33:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2022-11-18 19:33:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.1982758620689655) internal successors, (139), 116 states have internal predecessors, (139), 44 states have call successors, (44), 18 states have call predecessors, (44), 18 states have return successors, (46), 44 states have call predecessors, (46), 43 states have call successors, (46) [2022-11-18 19:33:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 229 transitions. [2022-11-18 19:33:06,125 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 229 transitions. Word has length 173 [2022-11-18 19:33:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:06,126 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 229 transitions. [2022-11-18 19:33:06,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 19:33:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 229 transitions. [2022-11-18 19:33:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-18 19:33:06,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:06,129 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:06,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:06,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:06,339 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1330201512, now seen corresponding path program 1 times [2022-11-18 19:33:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:06,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232524342] [2022-11-18 19:33:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:07,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 19:33:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 19:33:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 19:33:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-18 19:33:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 19:33:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:33:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-11-18 19:33:08,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232524342] [2022-11-18 19:33:08,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232524342] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:08,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553611513] [2022-11-18 19:33:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:08,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:08,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:08,749 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:08,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:33:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:09,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 2646 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:33:09,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:09,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:33:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-18 19:33:09,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:09,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553611513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:09,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:09,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 22 [2022-11-18 19:33:09,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559363663] [2022-11-18 19:33:09,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:09,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:33:09,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:09,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:33:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:33:09,788 INFO L87 Difference]: Start difference. First operand 179 states and 229 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-18 19:33:10,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:10,144 INFO L93 Difference]: Finished difference Result 359 states and 454 transitions. [2022-11-18 19:33:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:33:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 178 [2022-11-18 19:33:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:10,146 INFO L225 Difference]: With dead ends: 359 [2022-11-18 19:33:10,146 INFO L226 Difference]: Without dead ends: 209 [2022-11-18 19:33:10,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:33:10,147 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 179 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:10,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 698 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 85 Invalid, 0 Unknown, 65 Unchecked, 0.2s Time] [2022-11-18 19:33:10,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-18 19:33:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2022-11-18 19:33:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 136 states have (on average 1.1985294117647058) internal successors, (163), 135 states have internal predecessors, (163), 47 states have call successors, (47), 23 states have call predecessors, (47), 21 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-18 19:33:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 258 transitions. [2022-11-18 19:33:10,165 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 258 transitions. Word has length 178 [2022-11-18 19:33:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:10,166 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 258 transitions. [2022-11-18 19:33:10,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-18 19:33:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 258 transitions. [2022-11-18 19:33:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 19:33:10,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:10,170 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:10,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:10,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 19:33:10,381 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:10,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:10,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1571474099, now seen corresponding path program 1 times [2022-11-18 19:33:10,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:10,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139162720] [2022-11-18 19:33:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:10,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 19:33:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 19:33:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-18 19:33:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 19:33:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-18 19:33:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 19:33:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-18 19:33:13,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:13,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139162720] [2022-11-18 19:33:13,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139162720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:13,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689032959] [2022-11-18 19:33:13,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:13,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:13,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:13,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:13,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:33:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:13,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 2673 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 19:33:13,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-18 19:33:14,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:14,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689032959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:14,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:14,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2022-11-18 19:33:14,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246291219] [2022-11-18 19:33:14,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:14,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:33:14,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:33:14,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:33:14,027 INFO L87 Difference]: Start difference. First operand 205 states and 258 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 19:33:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:14,236 INFO L93 Difference]: Finished difference Result 389 states and 500 transitions. [2022-11-18 19:33:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:33:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 187 [2022-11-18 19:33:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:14,239 INFO L225 Difference]: With dead ends: 389 [2022-11-18 19:33:14,239 INFO L226 Difference]: Without dead ends: 217 [2022-11-18 19:33:14,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:33:14,241 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:14,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1513 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:33:14,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-18 19:33:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-11-18 19:33:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 142 states have (on average 1.1901408450704225) internal successors, (169), 143 states have internal predecessors, (169), 47 states have call successors, (47), 23 states have call predecessors, (47), 24 states have return successors, (55), 47 states have call predecessors, (55), 46 states have call successors, (55) [2022-11-18 19:33:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 271 transitions. [2022-11-18 19:33:14,262 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 271 transitions. Word has length 187 [2022-11-18 19:33:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:14,263 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 271 transitions. [2022-11-18 19:33:14,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 19:33:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 271 transitions. [2022-11-18 19:33:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-18 19:33:14,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:14,266 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:14,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:14,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:33:14,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash -798306709, now seen corresponding path program 1 times [2022-11-18 19:33:14,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:14,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356014262] [2022-11-18 19:33:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 19:33:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:33:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 19:33:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 19:33:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:33:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 19:33:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-18 19:33:15,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:15,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356014262] [2022-11-18 19:33:15,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356014262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530708119] [2022-11-18 19:33:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:15,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:15,196 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:15,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:33:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:15,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:33:15,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 19:33:15,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:15,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530708119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:15,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:15,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2022-11-18 19:33:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427760293] [2022-11-18 19:33:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:15,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:33:15,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:15,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:33:15,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:33:15,929 INFO L87 Difference]: Start difference. First operand 214 states and 271 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 19:33:15,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:15,970 INFO L93 Difference]: Finished difference Result 388 states and 502 transitions. [2022-11-18 19:33:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:33:15,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 195 [2022-11-18 19:33:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:15,973 INFO L225 Difference]: With dead ends: 388 [2022-11-18 19:33:15,973 INFO L226 Difference]: Without dead ends: 208 [2022-11-18 19:33:15,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:33:15,975 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 2 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:15,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 611 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:33:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-18 19:33:15,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2022-11-18 19:33:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 137 states have (on average 1.167883211678832) internal successors, (160), 139 states have internal predecessors, (160), 45 states have call successors, (45), 21 states have call predecessors, (45), 24 states have return successors, (53), 46 states have call predecessors, (53), 44 states have call successors, (53) [2022-11-18 19:33:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 258 transitions. [2022-11-18 19:33:15,992 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 258 transitions. Word has length 195 [2022-11-18 19:33:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:15,995 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 258 transitions. [2022-11-18 19:33:15,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 19:33:15,995 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 258 transitions. [2022-11-18 19:33:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-18 19:33:15,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:15,998 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:16,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:16,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:16,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash -715385865, now seen corresponding path program 1 times [2022-11-18 19:33:16,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:16,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381050523] [2022-11-18 19:33:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:16,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:33:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:33:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 19:33:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:33:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 19:33:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:33:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-18 19:33:19,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381050523] [2022-11-18 19:33:19,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381050523] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79759614] [2022-11-18 19:33:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:19,166 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:19,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:33:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:19,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-18 19:33:19,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:19,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:33:19,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:33:22,676 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:33:22,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 19:33:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 173 proven. 5 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-18 19:33:23,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:33:23,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79759614] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:23,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:33:23,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 32 [2022-11-18 19:33:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055594579] [2022-11-18 19:33:23,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:33:23,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 19:33:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 19:33:23,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1076, Unknown=1, NotChecked=0, Total=1190 [2022-11-18 19:33:23,631 INFO L87 Difference]: Start difference. First operand 207 states and 258 transitions. Second operand has 32 states, 28 states have (on average 5.285714285714286) internal successors, (148), 24 states have internal predecessors, (148), 13 states have call successors, (55), 12 states have call predecessors, (55), 9 states have return successors, (45), 10 states have call predecessors, (45), 13 states have call successors, (45) [2022-11-18 19:33:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:28,689 INFO L93 Difference]: Finished difference Result 411 states and 518 transitions. [2022-11-18 19:33:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 19:33:28,690 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 5.285714285714286) internal successors, (148), 24 states have internal predecessors, (148), 13 states have call successors, (55), 12 states have call predecessors, (55), 9 states have return successors, (45), 10 states have call predecessors, (45), 13 states have call successors, (45) Word has length 200 [2022-11-18 19:33:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:28,692 INFO L225 Difference]: With dead ends: 411 [2022-11-18 19:33:28,692 INFO L226 Difference]: Without dead ends: 278 [2022-11-18 19:33:28,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 305 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=287, Invalid=2363, Unknown=2, NotChecked=0, Total=2652 [2022-11-18 19:33:28,698 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 273 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 792 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:28,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1911 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2010 Invalid, 0 Unknown, 792 Unchecked, 2.2s Time] [2022-11-18 19:33:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-18 19:33:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 263. [2022-11-18 19:33:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 178 states have (on average 1.1629213483146068) internal successors, (207), 183 states have internal predecessors, (207), 52 states have call successors, (52), 27 states have call predecessors, (52), 32 states have return successors, (70), 52 states have call predecessors, (70), 51 states have call successors, (70) [2022-11-18 19:33:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 329 transitions. [2022-11-18 19:33:28,735 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 329 transitions. Word has length 200 [2022-11-18 19:33:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:28,736 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 329 transitions. [2022-11-18 19:33:28,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 5.285714285714286) internal successors, (148), 24 states have internal predecessors, (148), 13 states have call successors, (55), 12 states have call predecessors, (55), 9 states have return successors, (45), 10 states have call predecessors, (45), 13 states have call successors, (45) [2022-11-18 19:33:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 329 transitions. [2022-11-18 19:33:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 19:33:28,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:28,740 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:28,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:28,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:33:28,951 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:28,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:28,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1084083027, now seen corresponding path program 1 times [2022-11-18 19:33:28,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:28,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942575333] [2022-11-18 19:33:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:33:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:33:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:33:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:33:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:33:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 19:33:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 19:33:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-18 19:33:29,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:29,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942575333] [2022-11-18 19:33:29,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942575333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:29,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:29,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:33:29,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335431119] [2022-11-18 19:33:29,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:29,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:33:29,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:33:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:33:29,857 INFO L87 Difference]: Start difference. First operand 263 states and 329 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-18 19:33:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:31,077 INFO L93 Difference]: Finished difference Result 520 states and 652 transitions. [2022-11-18 19:33:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:33:31,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 212 [2022-11-18 19:33:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:31,080 INFO L225 Difference]: With dead ends: 520 [2022-11-18 19:33:31,080 INFO L226 Difference]: Without dead ends: 269 [2022-11-18 19:33:31,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:33:31,082 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 132 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:31,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 470 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:33:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-18 19:33:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 265. [2022-11-18 19:33:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 180 states have (on average 1.1611111111111112) internal successors, (209), 184 states have internal predecessors, (209), 52 states have call successors, (52), 27 states have call predecessors, (52), 32 states have return successors, (70), 53 states have call predecessors, (70), 51 states have call successors, (70) [2022-11-18 19:33:31,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 331 transitions. [2022-11-18 19:33:31,115 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 331 transitions. Word has length 212 [2022-11-18 19:33:31,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:31,116 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 331 transitions. [2022-11-18 19:33:31,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-18 19:33:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 331 transitions. [2022-11-18 19:33:31,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 19:33:31,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:31,118 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:31,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:33:31,118 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:31,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1364432916, now seen corresponding path program 1 times [2022-11-18 19:33:31,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:31,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610695593] [2022-11-18 19:33:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:31,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:33:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:33:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:33:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:33:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:33:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 19:33:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 19:33:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-11-18 19:33:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:33,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610695593] [2022-11-18 19:33:33,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610695593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:33,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:33,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-18 19:33:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227857028] [2022-11-18 19:33:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:33,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 19:33:33,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 19:33:33,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:33:33,559 INFO L87 Difference]: Start difference. First operand 265 states and 331 transitions. Second operand has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-11-18 19:33:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:36,201 INFO L93 Difference]: Finished difference Result 388 states and 489 transitions. [2022-11-18 19:33:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:33:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 212 [2022-11-18 19:33:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:36,204 INFO L225 Difference]: With dead ends: 388 [2022-11-18 19:33:36,204 INFO L226 Difference]: Without dead ends: 290 [2022-11-18 19:33:36,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2022-11-18 19:33:36,206 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 270 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:36,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 790 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 19:33:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-18 19:33:36,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 279. [2022-11-18 19:33:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 188 states have (on average 1.1648936170212767) internal successors, (219), 192 states have internal predecessors, (219), 57 states have call successors, (57), 27 states have call predecessors, (57), 33 states have return successors, (78), 59 states have call predecessors, (78), 56 states have call successors, (78) [2022-11-18 19:33:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 354 transitions. [2022-11-18 19:33:36,236 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 354 transitions. Word has length 212 [2022-11-18 19:33:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:36,237 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 354 transitions. [2022-11-18 19:33:36,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-11-18 19:33:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 354 transitions. [2022-11-18 19:33:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-18 19:33:36,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:36,239 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:36,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:33:36,240 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash 39081338, now seen corresponding path program 1 times [2022-11-18 19:33:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:36,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838257972] [2022-11-18 19:33:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:36,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:38,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:33:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:33:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 19:33:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:33:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-18 19:33:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 19:33:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:33:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 26 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-18 19:33:40,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838257972] [2022-11-18 19:33:40,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838257972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58338890] [2022-11-18 19:33:40,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:40,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:40,259 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:40,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:33:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:41,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 2770 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 19:33:41,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-18 19:33:41,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:41,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58338890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:41,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:41,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [23] total 30 [2022-11-18 19:33:41,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949716994] [2022-11-18 19:33:41,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:41,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:33:41,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:41,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:33:41,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:33:41,253 INFO L87 Difference]: Start difference. First operand 279 states and 354 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 19:33:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:41,463 INFO L93 Difference]: Finished difference Result 410 states and 526 transitions. [2022-11-18 19:33:41,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:33:41,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 209 [2022-11-18 19:33:41,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:41,466 INFO L225 Difference]: With dead ends: 410 [2022-11-18 19:33:41,466 INFO L226 Difference]: Without dead ends: 276 [2022-11-18 19:33:41,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2022-11-18 19:33:41,471 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 2 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:41,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1521 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-18 19:33:41,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 263. [2022-11-18 19:33:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 179 states have (on average 1.1620111731843576) internal successors, (208), 182 states have internal predecessors, (208), 52 states have call successors, (52), 27 states have call predecessors, (52), 31 states have return successors, (64), 53 states have call predecessors, (64), 51 states have call successors, (64) [2022-11-18 19:33:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 324 transitions. [2022-11-18 19:33:41,498 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 324 transitions. Word has length 209 [2022-11-18 19:33:41,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:41,500 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 324 transitions. [2022-11-18 19:33:41,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-18 19:33:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 324 transitions. [2022-11-18 19:33:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-18 19:33:41,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:41,502 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:41,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:41,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:41,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:41,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1604378691, now seen corresponding path program 1 times [2022-11-18 19:33:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:41,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072522538] [2022-11-18 19:33:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:41,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:41,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693915395] [2022-11-18 19:33:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:41,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:41,812 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:41,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:33:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:42,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:33:42,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-18 19:33:42,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:33:43,145 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-18 19:33:43,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072522538] [2022-11-18 19:33:43,145 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:33:43,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693915395] [2022-11-18 19:33:43,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693915395] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:43,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:43,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2022-11-18 19:33:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383905783] [2022-11-18 19:33:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:43,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:33:43,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:33:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:33:43,148 INFO L87 Difference]: Start difference. First operand 263 states and 324 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-18 19:33:43,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:43,335 INFO L93 Difference]: Finished difference Result 370 states and 459 transitions. [2022-11-18 19:33:43,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:33:43,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2022-11-18 19:33:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:43,338 INFO L225 Difference]: With dead ends: 370 [2022-11-18 19:33:43,339 INFO L226 Difference]: Without dead ends: 258 [2022-11-18 19:33:43,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:33:43,340 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:43,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1521 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:43,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-18 19:33:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-11-18 19:33:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 175 states have (on average 1.16) internal successors, (203), 177 states have internal predecessors, (203), 52 states have call successors, (52), 27 states have call predecessors, (52), 30 states have return successors, (62), 53 states have call predecessors, (62), 51 states have call successors, (62) [2022-11-18 19:33:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 317 transitions. [2022-11-18 19:33:43,366 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 317 transitions. Word has length 228 [2022-11-18 19:33:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:43,367 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 317 transitions. [2022-11-18 19:33:43,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-18 19:33:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 317 transitions. [2022-11-18 19:33:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-18 19:33:43,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:43,369 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:43,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:43,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 19:33:43,585 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:43,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash -696080334, now seen corresponding path program 1 times [2022-11-18 19:33:43,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372586559] [2022-11-18 19:33:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:33:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:33:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:33:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:33:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:33:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:33:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:33:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:33:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 19:33:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:33:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:33:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 19:33:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 19:33:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:33:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-18 19:33:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:33:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:33:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:33:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:33:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:33:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:33:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-18 19:33:45,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:45,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372586559] [2022-11-18 19:33:45,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372586559] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:45,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27577217] [2022-11-18 19:33:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:45,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:45,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:45,809 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:45,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 19:33:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:46,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 2894 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 19:33:46,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-18 19:33:46,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:46,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27577217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:46,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:46,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2022-11-18 19:33:46,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007959448] [2022-11-18 19:33:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:46,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:33:46,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:33:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:33:46,863 INFO L87 Difference]: Start difference. First operand 258 states and 317 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 19:33:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:47,319 INFO L93 Difference]: Finished difference Result 508 states and 623 transitions. [2022-11-18 19:33:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:33:47,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 233 [2022-11-18 19:33:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:47,322 INFO L225 Difference]: With dead ends: 508 [2022-11-18 19:33:47,322 INFO L226 Difference]: Without dead ends: 262 [2022-11-18 19:33:47,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:33:47,324 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 163 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:47,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 622 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:33:47,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-11-18 19:33:47,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-11-18 19:33:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 177 states have (on average 1.1581920903954803) internal successors, (205), 181 states have internal predecessors, (205), 52 states have call successors, (52), 27 states have call predecessors, (52), 32 states have return successors, (64), 53 states have call predecessors, (64), 51 states have call successors, (64) [2022-11-18 19:33:47,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 321 transitions. [2022-11-18 19:33:47,347 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 321 transitions. Word has length 233 [2022-11-18 19:33:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:47,348 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 321 transitions. [2022-11-18 19:33:47,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 19:33:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 321 transitions. [2022-11-18 19:33:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-18 19:33:47,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:47,351 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:47,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-18 19:33:47,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:33:47,562 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:47,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:47,562 INFO L85 PathProgramCache]: Analyzing trace with hash 883605678, now seen corresponding path program 1 times [2022-11-18 19:33:47,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:47,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668299210] [2022-11-18 19:33:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:47,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:47,635 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:47,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005033146] [2022-11-18 19:33:47,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:47,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:47,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:47,637 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 19:33:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:48,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 3108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:33:48,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-18 19:33:48,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:48,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:48,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668299210] [2022-11-18 19:33:48,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:33:48,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005033146] [2022-11-18 19:33:48,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005033146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:48,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:48,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:33:48,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782294937] [2022-11-18 19:33:48,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:48,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:33:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:33:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:33:48,604 INFO L87 Difference]: Start difference. First operand 262 states and 321 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-18 19:33:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:48,663 INFO L93 Difference]: Finished difference Result 507 states and 621 transitions. [2022-11-18 19:33:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:33:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 251 [2022-11-18 19:33:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:48,667 INFO L225 Difference]: With dead ends: 507 [2022-11-18 19:33:48,668 INFO L226 Difference]: Without dead ends: 257 [2022-11-18 19:33:48,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:33:48,670 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 2 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:48,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1226 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:33:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-18 19:33:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-11-18 19:33:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 174 states have (on average 1.1494252873563218) internal successors, (200), 177 states have internal predecessors, (200), 51 states have call successors, (51), 27 states have call predecessors, (51), 31 states have return successors, (60), 52 states have call predecessors, (60), 50 states have call successors, (60) [2022-11-18 19:33:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 311 transitions. [2022-11-18 19:33:48,695 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 311 transitions. Word has length 251 [2022-11-18 19:33:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:48,695 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 311 transitions. [2022-11-18 19:33:48,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-18 19:33:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 311 transitions. [2022-11-18 19:33:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-18 19:33:48,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:48,698 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:48,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-11-18 19:33:48,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:33:48,909 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1673886379, now seen corresponding path program 1 times [2022-11-18 19:33:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:48,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349383721] [2022-11-18 19:33:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:49,015 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:49,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145444259] [2022-11-18 19:33:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:49,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:49,016 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:49,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 19:33:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:49,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 19:33:49,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 192 proven. 11 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-18 19:33:49,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:33:50,395 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-18 19:33:50,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:50,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349383721] [2022-11-18 19:33:50,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:33:50,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145444259] [2022-11-18 19:33:50,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145444259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:33:50,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:33:50,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-18 19:33:50,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791007599] [2022-11-18 19:33:50,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:33:50,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:33:50,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:33:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:33:50,399 INFO L87 Difference]: Start difference. First operand 257 states and 311 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2022-11-18 19:33:50,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:50,655 INFO L93 Difference]: Finished difference Result 384 states and 471 transitions. [2022-11-18 19:33:50,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:33:50,656 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) Word has length 239 [2022-11-18 19:33:50,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:50,658 INFO L225 Difference]: With dead ends: 384 [2022-11-18 19:33:50,658 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 19:33:50,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 464 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:33:50,659 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 5 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:50,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1865 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:33:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 19:33:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 229. [2022-11-18 19:33:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 154 states have (on average 1.1493506493506493) internal successors, (177), 156 states have internal predecessors, (177), 47 states have call successors, (47), 25 states have call predecessors, (47), 27 states have return successors, (52), 47 states have call predecessors, (52), 46 states have call successors, (52) [2022-11-18 19:33:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 276 transitions. [2022-11-18 19:33:50,682 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 276 transitions. Word has length 239 [2022-11-18 19:33:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:50,682 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 276 transitions. [2022-11-18 19:33:50,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2022-11-18 19:33:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 276 transitions. [2022-11-18 19:33:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-18 19:33:50,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:50,685 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:50,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:50,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:50,901 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:50,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1453240668, now seen corresponding path program 1 times [2022-11-18 19:33:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:50,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708940038] [2022-11-18 19:33:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:50,977 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:50,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920139128] [2022-11-18 19:33:50,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:50,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:50,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:50,980 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:51,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 19:33:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:51,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 3104 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-18 19:33:51,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:51,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-18 19:33:52,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:33:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-18 19:33:52,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:33:52,186 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 70 treesize of output 64 [2022-11-18 19:33:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-18 19:33:52,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:52,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708940038] [2022-11-18 19:33:52,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:33:52,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920139128] [2022-11-18 19:33:52,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920139128] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 19:33:52,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:33:52,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 14 [2022-11-18 19:33:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467176603] [2022-11-18 19:33:52,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:52,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:33:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:52,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:33:52,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:33:52,455 INFO L87 Difference]: Start difference. First operand 229 states and 276 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-18 19:33:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:52,926 INFO L93 Difference]: Finished difference Result 248 states and 300 transitions. [2022-11-18 19:33:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:33:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 245 [2022-11-18 19:33:52,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:52,928 INFO L225 Difference]: With dead ends: 248 [2022-11-18 19:33:52,928 INFO L226 Difference]: Without dead ends: 246 [2022-11-18 19:33:52,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:33:52,929 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 19 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:52,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1240 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:33:52,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-18 19:33:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 238. [2022-11-18 19:33:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 160 states have (on average 1.15) internal successors, (184), 163 states have internal predecessors, (184), 48 states have call successors, (48), 26 states have call predecessors, (48), 29 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2022-11-18 19:33:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 286 transitions. [2022-11-18 19:33:52,953 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 286 transitions. Word has length 245 [2022-11-18 19:33:52,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:52,954 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 286 transitions. [2022-11-18 19:33:52,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-18 19:33:52,954 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 286 transitions. [2022-11-18 19:33:52,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-18 19:33:52,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:52,956 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:52,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:53,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:53,171 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1646844524, now seen corresponding path program 1 times [2022-11-18 19:33:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:53,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658675389] [2022-11-18 19:33:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:53,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:53,243 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:53,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1878953196] [2022-11-18 19:33:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:53,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:53,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:53,245 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:53,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 19:33:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:54,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-18 19:33:54,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 57 [2022-11-18 19:33:54,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:54,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 57 [2022-11-18 19:33:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-18 19:33:54,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:54,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:54,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658675389] [2022-11-18 19:33:54,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:33:54,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878953196] [2022-11-18 19:33:54,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878953196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:54,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:54,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 19:33:54,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945758174] [2022-11-18 19:33:54,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:54,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 19:33:54,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:54,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 19:33:54,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:33:54,920 INFO L87 Difference]: Start difference. First operand 238 states and 286 transitions. Second operand has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 8 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2022-11-18 19:33:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:55,443 INFO L93 Difference]: Finished difference Result 350 states and 420 transitions. [2022-11-18 19:33:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:33:55,447 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 8 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 247 [2022-11-18 19:33:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:55,449 INFO L225 Difference]: With dead ends: 350 [2022-11-18 19:33:55,449 INFO L226 Difference]: Without dead ends: 248 [2022-11-18 19:33:55,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:33:55,451 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 55 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 160 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:33:55,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1834 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 223 Invalid, 0 Unknown, 160 Unchecked, 0.4s Time] [2022-11-18 19:33:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-18 19:33:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 245. [2022-11-18 19:33:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 166 states have (on average 1.144578313253012) internal successors, (190), 168 states have internal predecessors, (190), 48 states have call successors, (48), 28 states have call predecessors, (48), 30 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2022-11-18 19:33:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 292 transitions. [2022-11-18 19:33:55,485 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 292 transitions. Word has length 247 [2022-11-18 19:33:55,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:55,486 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 292 transitions. [2022-11-18 19:33:55,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 8 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2022-11-18 19:33:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 292 transitions. [2022-11-18 19:33:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-18 19:33:55,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:55,489 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:55,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-11-18 19:33:55,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 19:33:55,703 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1153589007, now seen corresponding path program 1 times [2022-11-18 19:33:55,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:55,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052408174] [2022-11-18 19:33:55,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:55,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:55,800 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:33:55,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569638430] [2022-11-18 19:33:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:55,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:33:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:55,802 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:33:55,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 19:33:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:56,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 3139 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-18 19:33:56,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:57,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:33:57,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:33:57,850 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-18 19:33:57,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 53 [2022-11-18 19:33:57,987 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4396 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4396) |c_#memory_$Pointer$.offset|)) is different from true [2022-11-18 19:33:58,097 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4397 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_4397))) is different from true [2022-11-18 19:33:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:58,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:33:58,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:33:58,215 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-18 19:33:58,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:34:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:34:06,547 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:34:06,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 75 [2022-11-18 19:34:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:34:06,593 INFO L321 Elim1Store]: treesize reduction 252, result has 4.2 percent of original size [2022-11-18 19:34:06,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 78 [2022-11-18 19:34:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 50 proven. 280 refuted. 0 times theorem prover too weak. 42 trivial. 6 not checked. [2022-11-18 19:34:08,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:34:19,220 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:29,789 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:42,004 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:52,143 WARN L233 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:52,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052408174] [2022-11-18 19:34:52,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:34:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569638430] [2022-11-18 19:34:52,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569638430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:34:52,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:34:52,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2022-11-18 19:34:52,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43682601] [2022-11-18 19:34:52,548 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:34:52,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-18 19:34:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-18 19:34:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=2327, Unknown=28, NotChecked=198, Total=2756 [2022-11-18 19:34:52,551 INFO L87 Difference]: Start difference. First operand 245 states and 292 transitions. Second operand has 43 states, 38 states have (on average 4.2105263157894735) internal successors, (160), 37 states have internal predecessors, (160), 20 states have call successors, (42), 11 states have call predecessors, (42), 14 states have return successors, (39), 18 states have call predecessors, (39), 19 states have call successors, (39) [2022-11-18 19:34:52,996 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_4396 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4396) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:34:53,137 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_4397 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_4397)))) is different from true [2022-11-18 19:35:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:13,043 INFO L93 Difference]: Finished difference Result 547 states and 646 transitions. [2022-11-18 19:35:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-18 19:35:13,044 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 38 states have (on average 4.2105263157894735) internal successors, (160), 37 states have internal predecessors, (160), 20 states have call successors, (42), 11 states have call predecessors, (42), 14 states have return successors, (39), 18 states have call predecessors, (39), 19 states have call successors, (39) Word has length 256 [2022-11-18 19:35:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:13,050 INFO L225 Difference]: With dead ends: 547 [2022-11-18 19:35:13,050 INFO L226 Difference]: Without dead ends: 436 [2022-11-18 19:35:13,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 218 SyntacticMatches, 15 SemanticMatches, 91 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 71.1s TimeCoverageRelationStatistics Valid=541, Invalid=7261, Unknown=46, NotChecked=708, Total=8556 [2022-11-18 19:35:13,055 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 263 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 4690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2704 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:13,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 2015 Invalid, 4690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1823 Invalid, 0 Unknown, 2704 Unchecked, 2.1s Time] [2022-11-18 19:35:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-18 19:35:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 404. [2022-11-18 19:35:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 278 states have (on average 1.1366906474820144) internal successors, (316), 284 states have internal predecessors, (316), 70 states have call successors, (70), 50 states have call predecessors, (70), 55 states have return successors, (85), 69 states have call predecessors, (85), 69 states have call successors, (85) [2022-11-18 19:35:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 471 transitions. [2022-11-18 19:35:13,108 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 471 transitions. Word has length 256 [2022-11-18 19:35:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:13,109 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 471 transitions. [2022-11-18 19:35:13,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 38 states have (on average 4.2105263157894735) internal successors, (160), 37 states have internal predecessors, (160), 20 states have call successors, (42), 11 states have call predecessors, (42), 14 states have return successors, (39), 18 states have call predecessors, (39), 19 states have call successors, (39) [2022-11-18 19:35:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 471 transitions. [2022-11-18 19:35:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-18 19:35:13,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:13,113 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:13,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:13,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:13,333 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:13,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2036630559, now seen corresponding path program 1 times [2022-11-18 19:35:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:13,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130536991] [2022-11-18 19:35:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:13,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945431943] [2022-11-18 19:35:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:13,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:13,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:13,410 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:13,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 19:35:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:14,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 3216 conjuncts, 106 conjunts are in the unsatisfiable core [2022-11-18 19:35:14,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:14,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:14,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:15,013 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-18 19:35:15,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-18 19:35:15,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:35:15,189 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4643 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4643) |c_#memory_int|)) is different from true [2022-11-18 19:35:15,291 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4644 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_4644) |c_#memory_int|)) is different from true [2022-11-18 19:35:15,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:15,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:15,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-18 19:35:15,401 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-18 19:35:15,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-11-18 19:35:16,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:35:16,029 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-18 19:35:16,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 1 [2022-11-18 19:35:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 313 proven. 45 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-18 19:35:16,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:16,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:16,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130536991] [2022-11-18 19:35:16,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:16,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945431943] [2022-11-18 19:35:16,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945431943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:16,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:16,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2022-11-18 19:35:16,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947449391] [2022-11-18 19:35:16,743 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:16,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 19:35:16,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:16,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 19:35:16,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1209, Unknown=11, NotChecked=142, Total=1482 [2022-11-18 19:35:16,745 INFO L87 Difference]: Start difference. First operand 404 states and 471 transitions. Second operand has 31 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 16 states have call successors, (42), 8 states have call predecessors, (42), 12 states have return successors, (39), 13 states have call predecessors, (39), 16 states have call successors, (39) [2022-11-18 19:35:18,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:18,468 INFO L93 Difference]: Finished difference Result 601 states and 709 transitions. [2022-11-18 19:35:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 19:35:18,469 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 16 states have call successors, (42), 8 states have call predecessors, (42), 12 states have return successors, (39), 13 states have call predecessors, (39), 16 states have call successors, (39) Word has length 271 [2022-11-18 19:35:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:18,471 INFO L225 Difference]: With dead ends: 601 [2022-11-18 19:35:18,471 INFO L226 Difference]: Without dead ends: 465 [2022-11-18 19:35:18,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 347 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=254, Invalid=2499, Unknown=11, NotChecked=206, Total=2970 [2022-11-18 19:35:18,473 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 141 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1693 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:18,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1266 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1043 Invalid, 0 Unknown, 1693 Unchecked, 1.0s Time] [2022-11-18 19:35:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-18 19:35:18,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 454. [2022-11-18 19:35:18,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 314 states have (on average 1.1337579617834395) internal successors, (356), 320 states have internal predecessors, (356), 78 states have call successors, (78), 57 states have call predecessors, (78), 61 states have return successors, (95), 76 states have call predecessors, (95), 77 states have call successors, (95) [2022-11-18 19:35:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 529 transitions. [2022-11-18 19:35:18,517 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 529 transitions. Word has length 271 [2022-11-18 19:35:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:18,518 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 529 transitions. [2022-11-18 19:35:18,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 5.62962962962963) internal successors, (152), 27 states have internal predecessors, (152), 16 states have call successors, (42), 8 states have call predecessors, (42), 12 states have return successors, (39), 13 states have call predecessors, (39), 16 states have call successors, (39) [2022-11-18 19:35:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 529 transitions. [2022-11-18 19:35:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-18 19:35:18,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:18,521 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:18,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:18,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:18,735 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash 893761230, now seen corresponding path program 1 times [2022-11-18 19:35:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:18,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224382068] [2022-11-18 19:35:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:18,809 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:18,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953447368] [2022-11-18 19:35:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:18,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:18,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:18,811 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:18,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 19:35:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:19,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 3170 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-18 19:35:19,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:19,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:19,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:20,317 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-18 19:35:20,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 53 [2022-11-18 19:35:20,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:35:20,371 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 7 treesize of output 3 [2022-11-18 19:35:20,446 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4890 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4890) |c_#memory_int|)) is different from true [2022-11-18 19:35:20,540 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4891 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_4891) |c_#memory_int|)) is different from true [2022-11-18 19:35:20,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:20,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:20,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-18 19:35:20,631 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-18 19:35:20,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:35:21,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:35:21,231 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:35:21,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 19:35:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 279 proven. 32 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-18 19:35:21,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:21,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:21,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224382068] [2022-11-18 19:35:21,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:21,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953447368] [2022-11-18 19:35:21,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953447368] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:21,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:21,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-11-18 19:35:21,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698738188] [2022-11-18 19:35:21,884 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:21,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:35:21,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:21,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:35:21,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1009, Unknown=5, NotChecked=130, Total=1260 [2022-11-18 19:35:21,886 INFO L87 Difference]: Start difference. First operand 454 states and 529 transitions. Second operand has 28 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 15 states have call successors, (42), 8 states have call predecessors, (42), 10 states have return successors, (39), 12 states have call predecessors, (39), 15 states have call successors, (39) [2022-11-18 19:35:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:23,452 INFO L93 Difference]: Finished difference Result 655 states and 776 transitions. [2022-11-18 19:35:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 19:35:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 15 states have call successors, (42), 8 states have call predecessors, (42), 10 states have return successors, (39), 12 states have call predecessors, (39), 15 states have call successors, (39) Word has length 263 [2022-11-18 19:35:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:23,456 INFO L225 Difference]: With dead ends: 655 [2022-11-18 19:35:23,456 INFO L226 Difference]: Without dead ends: 518 [2022-11-18 19:35:23,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 333 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=185, Invalid=1624, Unknown=5, NotChecked=166, Total=1980 [2022-11-18 19:35:23,458 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 144 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2126 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:23,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1347 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1128 Invalid, 0 Unknown, 2126 Unchecked, 1.1s Time] [2022-11-18 19:35:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-18 19:35:23,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 504. [2022-11-18 19:35:23,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 350 states have (on average 1.1285714285714286) internal successors, (395), 356 states have internal predecessors, (395), 86 states have call successors, (86), 64 states have call predecessors, (86), 67 states have return successors, (105), 83 states have call predecessors, (105), 85 states have call successors, (105) [2022-11-18 19:35:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 586 transitions. [2022-11-18 19:35:23,513 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 586 transitions. Word has length 263 [2022-11-18 19:35:23,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:23,514 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 586 transitions. [2022-11-18 19:35:23,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 15 states have call successors, (42), 8 states have call predecessors, (42), 10 states have return successors, (39), 12 states have call predecessors, (39), 15 states have call successors, (39) [2022-11-18 19:35:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 586 transitions. [2022-11-18 19:35:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-18 19:35:23,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:23,517 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:23,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:23,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 19:35:23,736 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash 353331724, now seen corresponding path program 1 times [2022-11-18 19:35:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:23,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817000218] [2022-11-18 19:35:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:23,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:23,797 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:23,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874126624] [2022-11-18 19:35:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:23,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:23,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:23,799 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:23,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 19:35:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:24,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 3173 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-18 19:35:24,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:24,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:25,105 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:35:25,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-18 19:35:25,133 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 7 treesize of output 3 [2022-11-18 19:35:25,232 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5135 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5135)))) is different from true [2022-11-18 19:35:25,355 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5137 Int)) (= (store |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_add_size_checked_#in~r#1.base|) |c_aws_add_size_checked_#in~r#1.offset| v_ArrVal_5137)) |c_#memory_int|)) is different from true [2022-11-18 19:35:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:25,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2022-11-18 19:35:26,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:35:26,475 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-18 19:35:26,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 1 [2022-11-18 19:35:26,478 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 283 proven. 3 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:35:26,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:27,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:27,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817000218] [2022-11-18 19:35:27,267 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:27,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874126624] [2022-11-18 19:35:27,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874126624] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:27,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:27,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-11-18 19:35:27,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664728133] [2022-11-18 19:35:27,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:27,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:35:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:27,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:35:27,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=948, Unknown=2, NotChecked=126, Total=1190 [2022-11-18 19:35:27,270 INFO L87 Difference]: Start difference. First operand 504 states and 586 transitions. Second operand has 26 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 23 states have internal predecessors, (137), 13 states have call successors, (40), 6 states have call predecessors, (40), 8 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-18 19:35:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:29,717 INFO L93 Difference]: Finished difference Result 839 states and 1009 transitions. [2022-11-18 19:35:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 19:35:29,718 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 23 states have internal predecessors, (137), 13 states have call successors, (40), 6 states have call predecessors, (40), 8 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) Word has length 263 [2022-11-18 19:35:29,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:29,721 INFO L225 Difference]: With dead ends: 839 [2022-11-18 19:35:29,721 INFO L226 Difference]: Without dead ends: 607 [2022-11-18 19:35:29,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 331 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=233, Invalid=1843, Unknown=2, NotChecked=178, Total=2256 [2022-11-18 19:35:29,723 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 240 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 4256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2199 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:29,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1389 Invalid, 4256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1942 Invalid, 0 Unknown, 2199 Unchecked, 1.9s Time] [2022-11-18 19:35:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-11-18 19:35:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 508. [2022-11-18 19:35:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 352 states have (on average 1.1278409090909092) internal successors, (397), 360 states have internal predecessors, (397), 86 states have call successors, (86), 64 states have call predecessors, (86), 69 states have return successors, (109), 83 states have call predecessors, (109), 85 states have call successors, (109) [2022-11-18 19:35:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 592 transitions. [2022-11-18 19:35:29,781 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 592 transitions. Word has length 263 [2022-11-18 19:35:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:29,781 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 592 transitions. [2022-11-18 19:35:29,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 23 states have internal predecessors, (137), 13 states have call successors, (40), 6 states have call predecessors, (40), 8 states have return successors, (37), 10 states have call predecessors, (37), 13 states have call successors, (37) [2022-11-18 19:35:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 592 transitions. [2022-11-18 19:35:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-18 19:35:29,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:29,785 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:29,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:29,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 19:35:29,987 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:29,987 INFO L85 PathProgramCache]: Analyzing trace with hash -275400319, now seen corresponding path program 1 times [2022-11-18 19:35:29,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:29,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540104906] [2022-11-18 19:35:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:29,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:30,047 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:30,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180510627] [2022-11-18 19:35:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:30,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:30,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:30,048 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:30,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 19:35:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:31,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 3185 conjuncts, 138 conjunts are in the unsatisfiable core [2022-11-18 19:35:31,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:31,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:35:31,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:35:31,655 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-18 19:35:31,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-18 19:35:31,780 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5387 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5387))) is different from true [2022-11-18 19:35:31,882 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5388 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_5388) |c_#memory_$Pointer$.offset|)) is different from true [2022-11-18 19:35:31,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:31,969 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:35:31,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2022-11-18 19:35:31,994 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-18 19:35:31,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 19:35:39,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:35:39,988 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:35:39,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 75 [2022-11-18 19:35:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:35:40,021 INFO L321 Elim1Store]: treesize reduction 252, result has 4.2 percent of original size [2022-11-18 19:35:40,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 78 [2022-11-18 19:35:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 47 proven. 273 refuted. 0 times theorem prover too weak. 56 trivial. 6 not checked. [2022-11-18 19:35:41,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:48,039 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:35:58,492 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:36:08,687 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:36:18,815 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:36:19,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:19,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540104906] [2022-11-18 19:36:19,156 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:36:19,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180510627] [2022-11-18 19:36:19,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180510627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:36:19,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:36:19,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-11-18 19:36:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631581123] [2022-11-18 19:36:19,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:36:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-18 19:36:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-18 19:36:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1706, Unknown=26, NotChecked=170, Total=2070 [2022-11-18 19:36:19,158 INFO L87 Difference]: Start difference. First operand 508 states and 592 transitions. Second operand has 37 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 33 states have internal predecessors, (163), 19 states have call successors, (42), 11 states have call predecessors, (42), 12 states have return successors, (39), 17 states have call predecessors, (39), 18 states have call successors, (39) [2022-11-18 19:36:19,394 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_5387 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5387)))) is different from true [2022-11-18 19:36:19,508 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_ArrVal_5388 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_5388) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:36:29,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:29,848 INFO L93 Difference]: Finished difference Result 717 states and 838 transitions. [2022-11-18 19:36:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-18 19:36:29,849 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 33 states have internal predecessors, (163), 19 states have call successors, (42), 11 states have call predecessors, (42), 12 states have return successors, (39), 17 states have call predecessors, (39), 18 states have call successors, (39) Word has length 264 [2022-11-18 19:36:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:29,852 INFO L225 Difference]: With dead ends: 717 [2022-11-18 19:36:29,853 INFO L226 Difference]: Without dead ends: 605 [2022-11-18 19:36:29,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 230 SyntacticMatches, 15 SemanticMatches, 71 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1320 ImplicationChecksByTransitivity, 55.1s TimeCoverageRelationStatistics Valid=348, Invalid=4319, Unknown=41, NotChecked=548, Total=5256 [2022-11-18 19:36:29,855 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 167 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 3170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2128 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:29,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1396 Invalid, 3170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 959 Invalid, 0 Unknown, 2128 Unchecked, 1.3s Time] [2022-11-18 19:36:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-18 19:36:29,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 588. [2022-11-18 19:36:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 411 states have (on average 1.1338199513381995) internal successors, (466), 419 states have internal predecessors, (466), 97 states have call successors, (97), 74 states have call predecessors, (97), 79 states have return successors, (118), 94 states have call predecessors, (118), 96 states have call successors, (118) [2022-11-18 19:36:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 681 transitions. [2022-11-18 19:36:29,921 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 681 transitions. Word has length 264 [2022-11-18 19:36:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:29,922 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 681 transitions. [2022-11-18 19:36:29,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 33 states have internal predecessors, (163), 19 states have call successors, (42), 11 states have call predecessors, (42), 12 states have return successors, (39), 17 states have call predecessors, (39), 18 states have call successors, (39) [2022-11-18 19:36:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 681 transitions. [2022-11-18 19:36:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-18 19:36:29,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:29,925 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:29,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:30,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 19:36:30,140 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:36:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1773459048, now seen corresponding path program 1 times [2022-11-18 19:36:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:30,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536329696] [2022-11-18 19:36:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:30,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:36:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700901348] [2022-11-18 19:36:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:30,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:30,200 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:36:30,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 19:36:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:31,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 3151 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:36:31,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-18 19:36:31,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:36:31,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:31,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536329696] [2022-11-18 19:36:31,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:36:31,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700901348] [2022-11-18 19:36:31,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700901348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:31,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:31,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:36:31,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59928754] [2022-11-18 19:36:31,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:31,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:36:31,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:36:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:36:31,237 INFO L87 Difference]: Start difference. First operand 588 states and 681 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 19:36:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:31,333 INFO L93 Difference]: Finished difference Result 1132 states and 1313 transitions. [2022-11-18 19:36:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:36:31,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 265 [2022-11-18 19:36:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:31,337 INFO L225 Difference]: With dead ends: 1132 [2022-11-18 19:36:31,337 INFO L226 Difference]: Without dead ends: 565 [2022-11-18 19:36:31,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:36:31,339 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:31,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1197 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:36:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-11-18 19:36:31,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2022-11-18 19:36:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 395 states have (on average 1.1316455696202532) internal successors, (447), 403 states have internal predecessors, (447), 94 states have call successors, (94), 72 states have call predecessors, (94), 75 states have return successors, (111), 89 states have call predecessors, (111), 93 states have call successors, (111) [2022-11-18 19:36:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 652 transitions. [2022-11-18 19:36:31,405 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 652 transitions. Word has length 265 [2022-11-18 19:36:31,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:31,405 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 652 transitions. [2022-11-18 19:36:31,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-18 19:36:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 652 transitions. [2022-11-18 19:36:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-18 19:36:31,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:31,408 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:31,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:31,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 19:36:31,621 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:36:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1380770917, now seen corresponding path program 1 times [2022-11-18 19:36:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:31,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857893630] [2022-11-18 19:36:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:31,689 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:36:31,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031624623] [2022-11-18 19:36:31,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:31,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:31,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:31,691 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:36:31,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 19:38:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:33,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 636 conjunts are in the unsatisfiable core [2022-11-18 19:38:33,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:33,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:38:33,425 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:38:33,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:38:33,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:38:33,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:38:33,955 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 17 treesize of output 9 [2022-11-18 19:38:34,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:38:34,664 INFO L321 Elim1Store]: treesize reduction 173, result has 26.4 percent of original size [2022-11-18 19:38:34,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 186 [2022-11-18 19:38:36,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:38:41,076 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 162 proven. 15 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-11-18 19:38:41,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:38:41,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 19:38:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857893630] [2022-11-18 19:38:42,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:38:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031624623] [2022-11-18 19:38:42,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031624623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:42,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:38:42,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2022-11-18 19:38:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070320481] [2022-11-18 19:38:42,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:38:42,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 19:38:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 19:38:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1420, Unknown=1, NotChecked=0, Total=1560 [2022-11-18 19:38:42,739 INFO L87 Difference]: Start difference. First operand 565 states and 652 transitions. Second operand has 34 states, 27 states have (on average 3.925925925925926) internal successors, (106), 25 states have internal predecessors, (106), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2022-11-18 19:38:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:42,961 INFO L93 Difference]: Finished difference Result 580 states and 663 transitions. [2022-11-18 19:38:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 19:38:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 27 states have (on average 3.925925925925926) internal successors, (106), 25 states have internal predecessors, (106), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) Word has length 274 [2022-11-18 19:38:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:42,962 INFO L225 Difference]: With dead ends: 580 [2022-11-18 19:38:42,963 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:38:42,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 349 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=148, Invalid=1491, Unknown=1, NotChecked=0, Total=1640 [2022-11-18 19:38:42,966 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:42,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 245 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 262 Unchecked, 0.1s Time] [2022-11-18 19:38:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:38:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:38:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:38:42,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2022-11-18 19:38:42,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:42,971 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:38:42,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 27 states have (on average 3.925925925925926) internal successors, (106), 25 states have internal predecessors, (106), 11 states have call successors, (35), 6 states have call predecessors, (35), 10 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2022-11-18 19:38:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:38:42,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:38:42,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:38:43,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:43,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 19:38:43,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:38:45,796 INFO L899 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2022-11-18 19:38:45,797 INFO L895 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (or (forall ((|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int) (|aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int)) (or (not (<= 0 |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104|)) (not (< |#StackHeapBarrier| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0) (+ (* |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 442721857769029238784) 442721857768999609256 (* |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 24)))) (not (<= |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 8)))) (not (< 0 |#StackHeapBarrier|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,797 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (or (forall ((|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int) (|aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int)) (or (not (<= 0 |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104|)) (not (< |#StackHeapBarrier| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0) (+ (* |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 442721857769029238784) 442721857768999609256 (* |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 24)))) (not (<= |aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 8)))) (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,797 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2022-11-18 19:38:45,797 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2022-11-18 19:38:45,797 INFO L899 garLoopResultBuilder]: For program point L9990-5(line 9990) no Hoare annotation was computed. [2022-11-18 19:38:45,798 INFO L899 garLoopResultBuilder]: For program point L9990-7(line 9990) no Hoare annotation was computed. [2022-11-18 19:38:45,798 INFO L902 garLoopResultBuilder]: At program point aws_hash_table_is_validENTRY(lines 9988 9991) the Hoare annotation is: true [2022-11-18 19:38:45,798 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validEXIT(lines 9988 9991) no Hoare annotation was computed. [2022-11-18 19:38:45,798 INFO L899 garLoopResultBuilder]: For program point L9990-2(line 9990) no Hoare annotation was computed. [2022-11-18 19:38:45,798 INFO L899 garLoopResultBuilder]: For program point L9990-3(line 9990) no Hoare annotation was computed. [2022-11-18 19:38:45,798 INFO L902 garLoopResultBuilder]: At program point L9990-4(line 9990) the Hoare annotation is: true [2022-11-18 19:38:45,798 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validFINAL(lines 9988 9991) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point L9990(line 9990) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point aws_hash_iter_nextENTRY(lines 9858 9869) the Hoare annotation is: true [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point L9859-2(line 9859) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_nextEXIT(lines 9858 9869) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point L9868(line 9868) the Hoare annotation is: true [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point L9868-1(line 9868) the Hoare annotation is: true [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point L9868-2(line 9868) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point L9862-1(line 9862) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point L9859(line 9859) the Hoare annotation is: true [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point L9859-1(line 9859) the Hoare annotation is: true [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_nextFINAL(lines 9858 9869) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L899 garLoopResultBuilder]: For program point L9865(line 9865) no Hoare annotation was computed. [2022-11-18 19:38:45,799 INFO L902 garLoopResultBuilder]: At program point L9865-2(line 9865) the Hoare annotation is: true [2022-11-18 19:38:45,800 INFO L902 garLoopResultBuilder]: At program point L9862(line 9862) the Hoare annotation is: true [2022-11-18 19:38:45,800 INFO L899 garLoopResultBuilder]: For program point L9865-3(line 9865) no Hoare annotation was computed. [2022-11-18 19:38:45,800 INFO L895 garLoopResultBuilder]: At program point L10108(line 10108) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= (* |hash_table_state_required_bytes_#in~size| 24) |hash_table_state_required_bytes_#t~mem1318|) (exists ((v_ArrVal_5135 Int) (|hash_table_state_required_bytes_~#elemsize~0.base| Int)) (and (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= |#memory_int| (store |old(#memory_int)| |hash_table_state_required_bytes_~#elemsize~0.base| (store (select |old(#memory_int)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0 v_ArrVal_5135))))) (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (exists ((v_ArrVal_5387 (Array Int Int)) (|hash_table_state_required_bytes_~#elemsize~0.base| Int)) (and (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_5387)) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0))) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_283| Int) (v_ArrVal_5876 Int) (v_ArrVal_5875 Int)) (let ((.cse0 (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_5875))) (and (= (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_283| v_ArrVal_5876) |#valid|) (= (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_283|) 0)))) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|))) [2022-11-18 19:38:45,800 INFO L895 garLoopResultBuilder]: At program point hash_table_state_required_bytesENTRY(lines 10101 10113) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,800 INFO L899 garLoopResultBuilder]: For program point L10108-1(line 10108) no Hoare annotation was computed. [2022-11-18 19:38:45,801 INFO L899 garLoopResultBuilder]: For program point L10108-2(lines 10108 10110) no Hoare annotation was computed. [2022-11-18 19:38:45,801 INFO L895 garLoopResultBuilder]: At program point L10104(line 10104) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0) (exists ((v_ArrVal_5875 Int)) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| v_ArrVal_5875) |#valid|)))) [2022-11-18 19:38:45,801 INFO L899 garLoopResultBuilder]: For program point L10104-1(line 10104) no Hoare annotation was computed. [2022-11-18 19:38:45,801 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesEXIT(lines 10101 10113) no Hoare annotation was computed. [2022-11-18 19:38:45,801 INFO L899 garLoopResultBuilder]: For program point L10104-2(lines 10104 10106) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesFINAL(lines 10101 10113) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point L10075(lines 10075 10088) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point L10079(line 10079) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point L10069(lines 10069 10073) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L902 garLoopResultBuilder]: At program point aws_hash_iter_is_validENTRY(lines 10052 10093) the Hoare annotation is: true [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point L10059(lines 10059 10063) no Hoare annotation was computed. [2022-11-18 19:38:45,802 INFO L899 garLoopResultBuilder]: For program point L10082(lines 10082 10083) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point L10076(line 10076) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point L10082-2(lines 10082 10083) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_is_validEXIT(lines 10052 10093) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L902 garLoopResultBuilder]: At program point L10064(line 10064) the Hoare annotation is: true [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point L10064-1(lines 10064 10068) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point L10085(line 10085) no Hoare annotation was computed. [2022-11-18 19:38:45,803 INFO L899 garLoopResultBuilder]: For program point L10087-2(line 10087) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point aws_hash_iter_is_validFINAL(lines 10052 10093) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point L10087(line 10087) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point L10054(lines 10054 10058) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedEXIT(lines 2586 2594) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedFINAL(lines 2586 2594) no Hoare annotation was computed. [2022-11-18 19:38:45,804 INFO L895 garLoopResultBuilder]: At program point aws_mul_size_checkedENTRY(lines 2586 2594) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,805 INFO L895 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: (or (and (= (* |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_#in~a#1|) (select (select |#memory_int| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset|)) (exists ((v_ArrVal_5387 (Array Int Int))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |aws_mul_size_checked_#in~r#1.base| v_ArrVal_5387))) (exists ((v_ArrVal_5135 Int)) (= |#memory_int| (store |old(#memory_int)| |aws_mul_size_checked_#in~r#1.base| (store (select |old(#memory_int)| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5135)))) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 0) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_283| Int) (v_ArrVal_5876 Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_283|) 0) (= |#valid| (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_283| v_ArrVal_5876))))) (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= (+ |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 1) 0)) (not (< 0 |#StackHeapBarrier|))) [2022-11-18 19:38:45,805 INFO L895 garLoopResultBuilder]: At program point L2498(line 2498) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-18 19:38:45,805 INFO L899 garLoopResultBuilder]: For program point L2499-1(line 2499) no Hoare annotation was computed. [2022-11-18 19:38:45,805 INFO L895 garLoopResultBuilder]: At program point L2499(line 2499) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|))) [2022-11-18 19:38:45,806 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-18 19:38:45,806 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-18 19:38:45,806 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-18 19:38:45,806 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,806 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2022-11-18 19:38:45,806 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2022-11-18 19:38:45,807 INFO L902 garLoopResultBuilder]: At program point hash_table_state_is_validENTRY(lines 9999 10046) the Hoare annotation is: true [2022-11-18 19:38:45,807 INFO L902 garLoopResultBuilder]: At program point L10027(line 10027) the Hoare annotation is: true [2022-11-18 19:38:45,807 INFO L899 garLoopResultBuilder]: For program point L10027-1(line 10027) no Hoare annotation was computed. [2022-11-18 19:38:45,807 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validEXIT(lines 9999 10046) no Hoare annotation was computed. [2022-11-18 19:38:45,807 INFO L899 garLoopResultBuilder]: For program point L10001(lines 10001 10005) no Hoare annotation was computed. [2022-11-18 19:38:45,807 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validFINAL(lines 9999 10046) no Hoare annotation was computed. [2022-11-18 19:38:45,807 INFO L902 garLoopResultBuilder]: At program point L9796-3(lines 9796 9805) the Hoare annotation is: true [2022-11-18 19:38:45,808 INFO L902 garLoopResultBuilder]: At program point L9792(line 9792) the Hoare annotation is: true [2022-11-18 19:38:45,808 INFO L899 garLoopResultBuilder]: For program point L9796-4(lines 9796 9805) no Hoare annotation was computed. [2022-11-18 19:38:45,808 INFO L902 garLoopResultBuilder]: At program point L9792-1(line 9792) the Hoare annotation is: true [2022-11-18 19:38:45,808 INFO L899 garLoopResultBuilder]: For program point L9792-2(line 9792) no Hoare annotation was computed. [2022-11-18 19:38:45,808 INFO L899 garLoopResultBuilder]: For program point s_get_next_elementEXIT(lines 9788 9815) no Hoare annotation was computed. [2022-11-18 19:38:45,808 INFO L899 garLoopResultBuilder]: For program point L9799(lines 9799 9804) no Hoare annotation was computed. [2022-11-18 19:38:45,808 INFO L902 garLoopResultBuilder]: At program point L9789(lines 9789 9791) the Hoare annotation is: true [2022-11-18 19:38:45,808 INFO L899 garLoopResultBuilder]: For program point L9789-1(lines 9789 9791) no Hoare annotation was computed. [2022-11-18 19:38:45,809 INFO L902 garLoopResultBuilder]: At program point L9814-1(line 9814) the Hoare annotation is: true [2022-11-18 19:38:45,809 INFO L899 garLoopResultBuilder]: For program point L9814-2(line 9814) no Hoare annotation was computed. [2022-11-18 19:38:45,809 INFO L902 garLoopResultBuilder]: At program point s_get_next_elementENTRY(lines 9788 9815) the Hoare annotation is: true [2022-11-18 19:38:45,809 INFO L902 garLoopResultBuilder]: At program point L9814(line 9814) the Hoare annotation is: true [2022-11-18 19:38:45,809 INFO L899 garLoopResultBuilder]: For program point L9796-2(lines 9796 9805) no Hoare annotation was computed. [2022-11-18 19:38:45,809 INFO L899 garLoopResultBuilder]: For program point s_get_next_elementFINAL(lines 9788 9815) no Hoare annotation was computed. [2022-11-18 19:38:45,809 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-18 19:38:45,810 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-18 19:38:45,810 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-18 19:38:45,810 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-18 19:38:45,810 INFO L895 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) [2022-11-18 19:38:45,810 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2022-11-18 19:38:45,810 INFO L899 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2022-11-18 19:38:45,810 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2022-11-18 19:38:45,811 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_multENTRY(lines 253 256) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,811 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multEXIT(lines 253 256) no Hoare annotation was computed. [2022-11-18 19:38:45,811 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multFINAL(lines 253 256) no Hoare annotation was computed. [2022-11-18 19:38:45,811 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoFINAL(lines 2626 2631) no Hoare annotation was computed. [2022-11-18 19:38:45,811 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoEXIT(lines 2626 2631) no Hoare annotation was computed. [2022-11-18 19:38:45,811 INFO L902 garLoopResultBuilder]: At program point aws_is_power_of_twoENTRY(lines 2626 2631) the Hoare annotation is: true [2022-11-18 19:38:45,812 INFO L895 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: (let ((.cse1 (let ((.cse4 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) (let ((.cse3 (or (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) .cse4) (and (= |aws_add_size_checked_aws_add_u64_checked_#res#1| 0) (= ~tl_last_error~0 |old(~tl_last_error~0)|))))) (or (and (exists ((v_ArrVal_4397 (Array Int Int))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| |aws_add_size_checked_#in~r#1.base| v_ArrVal_4397))) .cse3) (and (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) .cse4 .cse3))))) (.cse2 (exists ((v_ArrVal_5137 Int)) (= (store |old(#memory_int)| |aws_add_size_checked_#in~r#1.base| (store (select |old(#memory_int)| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset| v_ArrVal_5137)) |#memory_int|))) (.cse0 (< 0 |#StackHeapBarrier|))) (or (not .cse0) (and .cse1 (<= (+ |aws_add_size_checked_aws_add_u64_checked_#res#1| 1) 0) .cse2 .cse0) (and (= (select (select |#memory_int| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset|) (+ |aws_add_size_checked_#in~b#1| |aws_add_size_checked_#in~a#1|)) .cse1 .cse2 (exists ((|v___CPROVER_overflow_mult_~#c~1.base_283| Int) (v_ArrVal_5876 Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_283|) 0) (= |#valid| (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_283| v_ArrVal_5876)))) .cse0))) [2022-11-18 19:38:45,812 INFO L895 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-18 19:38:45,812 INFO L895 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) [2022-11-18 19:38:45,812 INFO L899 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2022-11-18 19:38:45,812 INFO L895 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|))) [2022-11-18 19:38:45,812 INFO L899 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (< |#StackHeapBarrier| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (< 0 |#StackHeapBarrier|)) [2022-11-18 19:38:45,813 INFO L895 garLoopResultBuilder]: At program point L6811-1(line 6811) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (< 0 |#StackHeapBarrier|)) [2022-11-18 19:38:45,813 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-18 19:38:45,813 INFO L899 garLoopResultBuilder]: For program point L7195(lines 7195 7201) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L899 garLoopResultBuilder]: For program point L6815-3(line 6815) no Hoare annotation was computed. [2022-11-18 19:38:45,813 INFO L895 garLoopResultBuilder]: At program point L6815-2(line 6815) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|)) (.cse1 (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|)) (.cse3 (< 0 |#StackHeapBarrier|))) (or (and (<= 2 |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) .cse0 .cse1 (<= (+ |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 1) 0) .cse2 .cse3) (and (< |#StackHeapBarrier| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) .cse0 .cse1 (= (+ (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24) 442721857768999609256) (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|)) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|)) .cse2 (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) .cse3))) [2022-11-18 19:38:45,814 INFO L899 garLoopResultBuilder]: For program point L10131(line 10131) no Hoare annotation was computed. [2022-11-18 19:38:45,814 INFO L902 garLoopResultBuilder]: At program point L10135(line 10135) the Hoare annotation is: true [2022-11-18 19:38:45,814 INFO L895 garLoopResultBuilder]: At program point L10131-2(line 10131) the Hoare annotation is: false [2022-11-18 19:38:45,814 INFO L899 garLoopResultBuilder]: For program point L7274(lines 7274 7278) no Hoare annotation was computed. [2022-11-18 19:38:45,814 INFO L899 garLoopResultBuilder]: For program point L10131-3(line 10131) no Hoare annotation was computed. [2022-11-18 19:38:45,814 INFO L895 garLoopResultBuilder]: At program point L10127(line 10127) the Hoare annotation is: false [2022-11-18 19:38:45,814 INFO L895 garLoopResultBuilder]: At program point L10127-1(line 10127) the Hoare annotation is: false [2022-11-18 19:38:45,814 INFO L895 garLoopResultBuilder]: At program point L7270(line 7270) the Hoare annotation is: false [2022-11-18 19:38:45,815 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: false [2022-11-18 19:38:45,815 INFO L899 garLoopResultBuilder]: For program point L7270-3(line 7270) no Hoare annotation was computed. [2022-11-18 19:38:45,815 INFO L895 garLoopResultBuilder]: At program point L7270-2(line 7270) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_save_byte_from_hash_table_#t~ret660#1| 1) 0) (<= 2 |ULTIMATE.start_aws_hash_iter_next_harness_~#iter~2#1.base|) (<= 2 |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< 0 |#StackHeapBarrier|)) [2022-11-18 19:38:45,815 INFO L899 garLoopResultBuilder]: For program point L7270-1(line 7270) no Hoare annotation was computed. [2022-11-18 19:38:45,815 INFO L899 garLoopResultBuilder]: For program point L6816-1(line 6816) no Hoare annotation was computed. [2022-11-18 19:38:45,815 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:38:45,816 INFO L895 garLoopResultBuilder]: At program point L6816(line 6816) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 0))) (and (< |#StackHeapBarrier| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= .cse0 (+ (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24) 442721857768999609256)) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (= .cse0 |ULTIMATE.start_ensure_allocated_hash_table_#t~mem549#1|) (= (select |#valid| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (< 0 |#StackHeapBarrier|))) [2022-11-18 19:38:45,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:38:45,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:38:45,816 INFO L899 garLoopResultBuilder]: For program point L6812-1(line 6812) no Hoare annotation was computed. [2022-11-18 19:38:45,816 INFO L895 garLoopResultBuilder]: At program point L6812(line 6812) the Hoare annotation is: (and (or (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 1)) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 8) (< 0 |#StackHeapBarrier|)) [2022-11-18 19:38:45,816 INFO L899 garLoopResultBuilder]: For program point L7196(lines 7196 7200) no Hoare annotation was computed. [2022-11-18 19:38:45,817 INFO L895 garLoopResultBuilder]: At program point L10132(line 10132) the Hoare annotation is: false [2022-11-18 19:38:45,817 INFO L895 garLoopResultBuilder]: At program point L10132-1(line 10132) the Hoare annotation is: false [2022-11-18 19:38:45,817 INFO L899 garLoopResultBuilder]: For program point L10132-2(line 10132) no Hoare annotation was computed. [2022-11-18 19:38:45,817 INFO L899 garLoopResultBuilder]: For program point L7267(lines 7267 7272) no Hoare annotation was computed. [2022-11-18 19:38:45,817 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:38:45,817 INFO L899 garLoopResultBuilder]: For program point L6809(lines 6809 6819) no Hoare annotation was computed. [2022-11-18 19:38:45,817 INFO L895 garLoopResultBuilder]: At program point L10129(line 10129) the Hoare annotation is: false [2022-11-18 19:38:45,818 INFO L899 garLoopResultBuilder]: For program point L10129-1(line 10129) no Hoare annotation was computed. [2022-11-18 19:38:45,818 INFO L895 garLoopResultBuilder]: At program point L7198(line 7198) the Hoare annotation is: false [2022-11-18 19:38:45,818 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset|) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) 1) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (< 0 |#StackHeapBarrier|) (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 8)) [2022-11-18 19:38:45,818 INFO L899 garLoopResultBuilder]: For program point L7198-1(line 7198) no Hoare annotation was computed. [2022-11-18 19:38:45,818 INFO L899 garLoopResultBuilder]: For program point L6810-1(line 6810) no Hoare annotation was computed. [2022-11-18 19:38:45,818 INFO L899 garLoopResultBuilder]: For program point L10130(line 10130) no Hoare annotation was computed. [2022-11-18 19:38:45,819 INFO L895 garLoopResultBuilder]: At program point L10122(line 10122) the Hoare annotation is: false [2022-11-18 19:38:45,819 INFO L895 garLoopResultBuilder]: At program point L10130-2(line 10130) the Hoare annotation is: false [2022-11-18 19:38:45,819 INFO L899 garLoopResultBuilder]: For program point L10130-3(line 10130) no Hoare annotation was computed. [2022-11-18 19:38:45,819 INFO L899 garLoopResultBuilder]: For program point L7277-1(line 7277) no Hoare annotation was computed. [2022-11-18 19:38:45,819 INFO L895 garLoopResultBuilder]: At program point L7277(line 7277) the Hoare annotation is: false [2022-11-18 19:38:45,819 INFO L895 garLoopResultBuilder]: At program point L10118-1(line 10118) the Hoare annotation is: false [2022-11-18 19:38:45,819 INFO L899 garLoopResultBuilder]: For program point L10118-2(line 10118) no Hoare annotation was computed. [2022-11-18 19:38:45,819 INFO L899 garLoopResultBuilder]: For program point L10114(lines 10114 10134) no Hoare annotation was computed. [2022-11-18 19:38:45,820 INFO L895 garLoopResultBuilder]: At program point L10122-1(line 10122) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_hash_iter_next_harness_~#iter~2#1.base|) (<= 2 |ULTIMATE.start_aws_hash_iter_next_harness_~#map~0#1.base|) (<= 2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_iter_next_harness_~#iter~2#1.base|) |ULTIMATE.start_aws_hash_iter_next_harness_~#iter~2#1.offset|)) (= |ULTIMATE.start_aws_hash_iter_next_harness_#t~ret1324#1| 0) (= |ULTIMATE.start_aws_hash_iter_next_harness_~#iter~2#1.offset| 0) (< 0 |#StackHeapBarrier|)) [2022-11-18 19:38:45,820 INFO L899 garLoopResultBuilder]: For program point L10122-2(line 10122) no Hoare annotation was computed. [2022-11-18 19:38:45,820 INFO L895 garLoopResultBuilder]: At program point L10118(line 10118) the Hoare annotation is: false [2022-11-18 19:38:45,820 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-18 19:38:45,820 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-18 19:38:45,820 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-18 19:38:45,821 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-18 19:38:45,821 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-18 19:38:45,821 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-18 19:38:45,824 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:45,826 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:38:45,836 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,837 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,837 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] [2022-11-18 19:38:45,837 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] [2022-11-18 19:38:45,838 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,838 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:45,838 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,838 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,838 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,839 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,839 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,842 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,842 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,843 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] [2022-11-18 19:38:45,843 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] [2022-11-18 19:38:45,843 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,843 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:45,843 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,844 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,844 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,844 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,844 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,846 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,846 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,846 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:45,847 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,847 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,847 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,847 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,848 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,848 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,848 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,848 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,848 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,849 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,849 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:45,849 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,849 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,850 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:45,850 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,850 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,850 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,850 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,851 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,851 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,851 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,851 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,851 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,852 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,852 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:45,852 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,852 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:45,853 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,855 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,856 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,856 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:45,856 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,856 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,856 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,857 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,857 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,857 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,857 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,857 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,858 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,858 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,858 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:45,858 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,859 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:45,859 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,859 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,859 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,860 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,860 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,860 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,860 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,860 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:45,861 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,861 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:45,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:45,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:45,862 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:45,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:38:45 BoogieIcfgContainer [2022-11-18 19:38:45,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:38:45,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:38:45,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:38:45,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:38:45,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:30" (3/4) ... [2022-11-18 19:38:45,869 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:38:45,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure s_get_next_element [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_next [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 19:38:45,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_iter_is_valid [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2022-11-18 19:38:45,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-18 19:38:45,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-18 19:38:45,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2022-11-18 19:38:45,891 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 154 nodes and edges [2022-11-18 19:38:45,892 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2022-11-18 19:38:45,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-18 19:38:45,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 19:38:45,895 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 19:38:45,896 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 19:38:45,897 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:38:45,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:38:45,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v_ArrVal_5387 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5387])) && (\exists v_ArrVal_5135 : int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5135]])) && tl_last_error == \old(tl_last_error)) && \result == 0) && (\exists v___CPROVER_overflow_mult_~#c~1.base_283 : int, v_ArrVal_5876 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283] == 0 && \valid == \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283 := v_ArrVal_5876])) || ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \result + 1 <= 0)) || !(0 < unknown-#StackHeapBarrier-unknown) [2022-11-18 19:38:45,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 < unknown-#StackHeapBarrier-unknown) || ((((((\exists v_ArrVal_4397 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_4397]) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))) || ((r == r && #memory_$Pointer$ == \old(#memory_$Pointer$)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error))))) && \result + 1 <= 0) && (\exists v_ArrVal_5137 : int :: \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5137]] == unknown-#memory_int-unknown)) && 0 < unknown-#StackHeapBarrier-unknown)) || ((((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (((\exists v_ArrVal_4397 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_4397]) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))) || ((r == r && #memory_$Pointer$ == \old(#memory_$Pointer$)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))))) && (\exists v_ArrVal_5137 : int :: \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5137]] == unknown-#memory_int-unknown)) && (\exists v___CPROVER_overflow_mult_~#c~1.base_283 : int, v_ArrVal_5876 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283] == 0 && \valid == \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283 := v_ArrVal_5876])) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-18 19:38:46,541 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:38:46,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:38:46,542 INFO L158 Benchmark]: Toolchain (without parser) took 382414.60ms. Allocated memory was 134.2MB in the beginning and 847.2MB in the end (delta: 713.0MB). Free memory was 91.8MB in the beginning and 370.0MB in the end (delta: -278.2MB). Peak memory consumption was 433.7MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,542 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 50.0MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:38:46,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3642.91ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 91.5MB in the beginning and 75.4MB in the end (delta: 16.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 270.67ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 116.2MB in the end (delta: -40.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,543 INFO L158 Benchmark]: Boogie Preprocessor took 85.77ms. Allocated memory is still 174.1MB. Free memory was 116.2MB in the beginning and 109.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,543 INFO L158 Benchmark]: RCFGBuilder took 1906.55ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 109.9MB in the beginning and 186.2MB in the end (delta: -76.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,544 INFO L158 Benchmark]: TraceAbstraction took 375823.39ms. Allocated memory was 251.7MB in the beginning and 847.2MB in the end (delta: 595.6MB). Free memory was 185.2MB in the beginning and 493.8MB in the end (delta: -308.6MB). Peak memory consumption was 507.2MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,544 INFO L158 Benchmark]: Witness Printer took 676.09ms. Allocated memory is still 847.2MB. Free memory was 493.8MB in the beginning and 370.0MB in the end (delta: 123.7MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2022-11-18 19:38:46,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 50.0MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3642.91ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 91.5MB in the beginning and 75.4MB in the end (delta: 16.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 270.67ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 116.2MB in the end (delta: -40.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.77ms. Allocated memory is still 174.1MB. Free memory was 116.2MB in the beginning and 109.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1906.55ms. Allocated memory was 174.1MB in the beginning and 251.7MB in the end (delta: 77.6MB). Free memory was 109.9MB in the beginning and 186.2MB in the end (delta: -76.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * TraceAbstraction took 375823.39ms. Allocated memory was 251.7MB in the beginning and 847.2MB in the end (delta: 595.6MB). Free memory was 185.2MB in the beginning and 493.8MB in the end (delta: -308.6MB). Peak memory consumption was 507.2MB. Max. memory is 16.1GB. * Witness Printer took 676.09ms. Allocated memory is still 847.2MB. Free memory was 493.8MB in the beginning and 370.0MB in the end (delta: 123.7MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 375.7s, OverallIterations: 28, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 51.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3148 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3027 mSDsluCounter, 31353 SdHoareTripleChecker+Invalid, 14.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12464 IncrementalHoareTripleChecker+Unchecked, 26578 mSDsCounter, 1359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13989 IncrementalHoareTripleChecker+Invalid, 27812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1359 mSolverCounterUnsat, 4775 mSDtfsCounter, 13989 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8072 GetRequests, 7316 SyntacticMatches, 54 SemanticMatches, 702 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 7182 ImplicationChecksByTransitivity, 167.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=588occurred in iteration=26, InterpolantAutomatonStates: 487, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 28 MinimizatonAttempts, 243 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 1695 PreInvPairs, 1774 NumberOfFragments, 1056 HoareAnnotationTreeSize, 1695 FomulaSimplifications, 1792 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 64 FomulaSimplificationsInter, 3755 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.2s SsaConstructionTime, 134.1s SatisfiabilityAnalysisTime, 168.8s InterpolantComputationTime, 7836 NumberOfCodeBlocks, 7836 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 8663 ConstructedInterpolants, 574 QuantifiedInterpolants, 28337 SizeOfPredicates, 293 NumberOfNonLiveVariables, 74676 ConjunctsInSsa, 1588 ConjunctsInUnsatCore, 42 InterpolantComputations, 19 PerfectInterpolantSequences, 10671/11669 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10135]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9796]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2497]: Loop Invariant [2022-11-18 19:38:46,560 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,560 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,560 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] [2022-11-18 19:38:46,560 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,561 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,562 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,563 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,563 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5387,QUANTIFIED] [2022-11-18 19:38:46,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5135,QUANTIFIED] [2022-11-18 19:38:46,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,564 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v_ArrVal_5387 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_5387])) && (\exists v_ArrVal_5135 : int :: unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5135]])) && tl_last_error == \old(tl_last_error)) && \result == 0) && (\exists v___CPROVER_overflow_mult_~#c~1.base_283 : int, v_ArrVal_5876 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283] == 0 && \valid == \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283 := v_ArrVal_5876])) || ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \result + 1 <= 0)) || !(0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 2541]: Loop Invariant [2022-11-18 19:38:46,565 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,566 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,566 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:46,566 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,566 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,566 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,568 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,568 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,568 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:46,568 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,568 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,569 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:46,569 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,569 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,569 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,569 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,570 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,571 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:46,571 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,571 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:46,571 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,573 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,573 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,573 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:46,573 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,574 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,575 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,575 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,575 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,575 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:46,575 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,576 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,576 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_4397,QUANTIFIED] [2022-11-18 19:38:46,576 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,576 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,576 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,577 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,577 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,577 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,577 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,577 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5137,QUANTIFIED] [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_5876,QUANTIFIED] [2022-11-18 19:38:46,578 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_283,QUANTIFIED] Derived loop invariant: (!(0 < unknown-#StackHeapBarrier-unknown) || ((((((\exists v_ArrVal_4397 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_4397]) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))) || ((r == r && #memory_$Pointer$ == \old(#memory_$Pointer$)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error))))) && \result + 1 <= 0) && (\exists v_ArrVal_5137 : int :: \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5137]] == unknown-#memory_int-unknown)) && 0 < unknown-#StackHeapBarrier-unknown)) || ((((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (((\exists v_ArrVal_4397 : [int]int :: #memory_$Pointer$ == \old(#memory_$Pointer$)[r := v_ArrVal_4397]) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))) || ((r == r && #memory_$Pointer$ == \old(#memory_$Pointer$)) && ((((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) || (\result == 0 && tl_last_error == \old(tl_last_error)))))) && (\exists v_ArrVal_5137 : int :: \old(unknown-#memory_int-unknown)[r := \old(unknown-#memory_int-unknown)[r][r := v_ArrVal_5137]] == unknown-#memory_int-unknown)) && (\exists v___CPROVER_overflow_mult_~#c~1.base_283 : int, v_ArrVal_5876 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283] == 0 && \valid == \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_283 := v_ArrVal_5876])) && 0 < unknown-#StackHeapBarrier-unknown) RESULT: Ultimate proved your program to be correct! [2022-11-18 19:38:46,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02a1e14d-df3f-4194-8496-36e33839c010/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE