./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ --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 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 --- 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-dbf71c6-m [2022-10-17 11:04:44,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:04:44,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:04:44,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:04:44,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:04:44,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:04:44,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:04:44,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:04:44,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:04:44,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:04:44,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:04:44,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:04:44,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:04:44,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:04:44,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:04:44,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:04:44,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:04:44,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:04:44,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:04:44,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:04:44,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:04:44,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:04:44,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:04:44,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:04:44,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:04:44,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:04:44,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:04:44,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:04:44,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:04:44,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:04:44,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:04:44,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:04:44,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:04:44,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:04:44,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:04:44,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:04:44,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:04:44,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:04:44,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:04:44,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:04:44,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:04:44,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:04:44,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:04:44,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:04:44,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:04:44,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:04:44,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:04:44,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:04:44,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:04:44,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:04:44,410 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:04:44,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:04:44,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:04:44,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:04:44,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:04:44,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:04:44,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:04:44,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:04:44,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:04:44,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:04:44,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:04:44,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:04:44,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:04:44,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:04:44,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:04:44,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:04:44,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:04:44,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:04:44,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:04:44,421 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:04:44,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:04:44,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:04:44,422 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_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 [2022-10-17 11:04:44,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:04:44,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:04:44,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:04:44,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:04:44,746 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:04:44,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-10-17 11:04:44,848 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/data/01ef30219/10add1c182174ab1b8bcf9054dfc2afb/FLAG29e748a56 [2022-10-17 11:04:45,802 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:04:45,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2022-10-17 11:04:45,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/data/01ef30219/10add1c182174ab1b8bcf9054dfc2afb/FLAG29e748a56 [2022-10-17 11:04:46,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/data/01ef30219/10add1c182174ab1b8bcf9054dfc2afb [2022-10-17 11:04:46,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:04:46,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:04:46,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:46,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:04:46,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:04:46,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:46" (1/1) ... [2022-10-17 11:04:46,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301366b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:46, skipping insertion in model container [2022-10-17 11:04:46,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:46" (1/1) ... [2022-10-17 11:04:46,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:04:46,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:04:46,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-10-17 11:04:46,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-10-17 11:04:48,237 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,247 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,248 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,249 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,251 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,271 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,272 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,275 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,276 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,279 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,282 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:48,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,036 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 11:04:49,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 11:04:49,040 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 11:04:49,041 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 11:04:49,043 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 11:04:49,044 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 11:04:49,045 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 11:04:49,046 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 11:04:49,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 11:04:49,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 11:04:49,313 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 11:04:49,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,764 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,767 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,776 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,812 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,817 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,818 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,819 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,819 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,820 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,820 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:49,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:49,972 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:04:50,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2022-10-17 11:04:50,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2022-10-17 11:04:50,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,090 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,090 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,091 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,114 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,117 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,120 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,121 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,122 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,122 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 11:04:50,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 11:04:50,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 11:04:50,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 11:04:50,171 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 11:04:50,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 11:04:50,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 11:04:50,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 11:04:50,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 11:04:50,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 11:04:50,208 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 11:04:50,317 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,318 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,359 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,360 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,363 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,363 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,393 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,394 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,396 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,396 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 11:04:50,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:50,647 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:04:50,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50 WrapperNode [2022-10-17 11:04:50,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:50,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:50,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:04:50,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:04:50,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,874 INFO L138 Inliner]: procedures = 775, calls = 2499, calls flagged for inlining = 69, calls inlined = 19, statements flattened = 1070 [2022-10-17 11:04:50,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:50,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:04:50,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:04:50,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:04:50,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:50,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:51,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:51,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:51,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:51,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:04:51,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:04:51,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:04:51,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:04:51,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (1/1) ... [2022-10-17 11:04:51,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:04:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:51,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:51,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:04:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 11:04:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-10-17 11:04:51,173 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-10-17 11:04:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:04:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-10-17 11:04:51,173 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-10-17 11:04:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 11:04:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 11:04:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-10-17 11:04:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-10-17 11:04:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:04:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:04:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:04:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:04:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:04:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-10-17 11:04:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-10-17 11:04:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-10-17 11:04:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-10-17 11:04:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:04:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-10-17 11:04:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-10-17 11:04:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:04:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-10-17 11:04:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-10-17 11:04:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:04:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-10-17 11:04:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-10-17 11:04:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-10-17 11:04:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-10-17 11:04:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-10-17 11:04:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-10-17 11:04:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-10-17 11:04:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-10-17 11:04:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-10-17 11:04:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-10-17 11:04:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:04:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-10-17 11:04:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-10-17 11:04:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-10-17 11:04:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:04:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:04:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-10-17 11:04:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-10-17 11:04:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-10-17 11:04:51,187 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-10-17 11:04:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-10-17 11:04:51,188 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-10-17 11:04:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:04:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:04:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-10-17 11:04:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-10-17 11:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-10-17 11:04:51,196 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-10-17 11:04:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-10-17 11:04:51,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-10-17 11:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-10-17 11:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-10-17 11:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2022-10-17 11:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2022-10-17 11:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-10-17 11:04:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-10-17 11:04:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2022-10-17 11:04:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2022-10-17 11:04:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 11:04:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 11:04:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:04:51,704 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:04:51,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:04:51,926 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !true; [2022-10-17 11:04:51,926 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2022-10-17 11:04:51,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-10-17 11:04:52,020 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-10-17 11:04:53,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !true; [2022-10-17 11:04:53,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !true; [2022-10-17 11:04:53,308 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:04:53,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:04:53,326 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-10-17 11:04:53,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:53 BoogieIcfgContainer [2022-10-17 11:04:53,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:04:53,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:04:53,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:04:53,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:04:53,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:04:46" (1/3) ... [2022-10-17 11:04:53,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67beeceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:53, skipping insertion in model container [2022-10-17 11:04:53,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:50" (2/3) ... [2022-10-17 11:04:53,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67beeceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:53, skipping insertion in model container [2022-10-17 11:04:53,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:53" (3/3) ... [2022-10-17 11:04:53,341 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_remove_harness.i [2022-10-17 11:04:53,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:04:53,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:04:53,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:04:53,453 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;@5d4cbdcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:04:53,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:04:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 205 states have (on average 1.248780487804878) internal successors, (256), 200 states have internal predecessors, (256), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-10-17 11:04:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-17 11:04:53,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:53,491 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:53,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:53,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1499271925, now seen corresponding path program 1 times [2022-10-17 11:04:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:53,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200987723] [2022-10-17 11:04:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:53,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:54,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:54,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200987723] [2022-10-17 11:04:54,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-17 11:04:54,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453848940] [2022-10-17 11:04:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:54,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:54,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:54,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:04:54,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 11:04:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2903 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 11:04:55,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-10-17 11:04:55,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:04:55,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453848940] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:55,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:55,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:04:55,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822748260] [2022-10-17 11:04:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:55,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:04:55,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:04:55,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:04:55,219 INFO L87 Difference]: Start difference. First operand has 315 states, 205 states have (on average 1.248780487804878) internal successors, (256), 200 states have internal predecessors, (256), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-17 11:04:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:55,344 INFO L93 Difference]: Finished difference Result 624 states and 904 transitions. [2022-10-17 11:04:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:04:55,346 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 184 [2022-10-17 11:04:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:04:55,372 INFO L225 Difference]: With dead ends: 624 [2022-10-17 11:04:55,372 INFO L226 Difference]: Without dead ends: 307 [2022-10-17 11:04:55,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:04:55,393 INFO L413 NwaCegarLoop]: 415 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, 415 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 [2022-10-17 11:04:55,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:04:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-10-17 11:04:55,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2022-10-17 11:04:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 192 states have (on average 1.21875) internal successors, (234), 194 states have internal predecessors, (234), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-10-17 11:04:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 406 transitions. [2022-10-17 11:04:55,511 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 406 transitions. Word has length 184 [2022-10-17 11:04:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:04:55,512 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 406 transitions. [2022-10-17 11:04:55,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-17 11:04:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 406 transitions. [2022-10-17 11:04:55,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-17 11:04:55,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:55,524 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:55,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:55,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 11:04:55,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1512102767, now seen corresponding path program 1 times [2022-10-17 11:04:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:55,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054135974] [2022-10-17 11:04:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:55,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:55,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:04:55,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86831817] [2022-10-17 11:04:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:55,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:55,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:55,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:04:55,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 11:04:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:56,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2903 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 11:04:56,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-10-17 11:04:56,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:04:56,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:56,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054135974] [2022-10-17 11:04:56,933 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:04:56,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86831817] [2022-10-17 11:04:56,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86831817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:56,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:56,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:04:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187056950] [2022-10-17 11:04:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:56,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:04:56,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:56,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:04:56,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:04:56,937 INFO L87 Difference]: Start difference. First operand 307 states and 406 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-10-17 11:04:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:57,349 INFO L93 Difference]: Finished difference Result 565 states and 758 transitions. [2022-10-17 11:04:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:04:57,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 184 [2022-10-17 11:04:57,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:04:57,355 INFO L225 Difference]: With dead ends: 565 [2022-10-17 11:04:57,356 INFO L226 Difference]: Without dead ends: 314 [2022-10-17 11:04:57,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:04:57,359 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 434 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:04:57,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1327 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 11:04:57,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-10-17 11:04:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-10-17 11:04:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 197 states have (on average 1.218274111675127) internal successors, (240), 200 states have internal predecessors, (240), 88 states have call successors, (88), 27 states have call predecessors, (88), 28 states have return successors, (89), 86 states have call predecessors, (89), 86 states have call successors, (89) [2022-10-17 11:04:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 417 transitions. [2022-10-17 11:04:57,390 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 417 transitions. Word has length 184 [2022-10-17 11:04:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:04:57,391 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 417 transitions. [2022-10-17 11:04:57,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-10-17 11:04:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 417 transitions. [2022-10-17 11:04:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-17 11:04:57,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:57,395 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:57,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:57,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:57,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:57,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:57,609 INFO L85 PathProgramCache]: Analyzing trace with hash -312879987, now seen corresponding path program 1 times [2022-10-17 11:04:57,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:57,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223326735] [2022-10-17 11:04:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:57,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:57,776 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:04:57,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295684204] [2022-10-17 11:04:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:57,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:57,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:57,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:04:57,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 11:04:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:58,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 2913 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 11:04:58,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:04:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-10-17 11:04:58,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:04:58,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223326735] [2022-10-17 11:04:58,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:04:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295684204] [2022-10-17 11:04:58,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295684204] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:58,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:58,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:04:58,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913115280] [2022-10-17 11:04:58,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:58,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:04:58,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:58,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:04:58,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:04:58,843 INFO L87 Difference]: Start difference. First operand 314 states and 417 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-10-17 11:04:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:04:59,207 INFO L93 Difference]: Finished difference Result 534 states and 713 transitions. [2022-10-17 11:04:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:04:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 184 [2022-10-17 11:04:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:04:59,214 INFO L225 Difference]: With dead ends: 534 [2022-10-17 11:04:59,214 INFO L226 Difference]: Without dead ends: 307 [2022-10-17 11:04:59,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-17 11:04:59,217 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 457 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:04:59,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1292 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 11:04:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-10-17 11:04:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2022-10-17 11:04:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 192 states have (on average 1.2135416666666667) internal successors, (233), 194 states have internal predecessors, (233), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-10-17 11:04:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 405 transitions. [2022-10-17 11:04:59,259 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 405 transitions. Word has length 184 [2022-10-17 11:04:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:04:59,266 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 405 transitions. [2022-10-17 11:04:59,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-10-17 11:04:59,266 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 405 transitions. [2022-10-17 11:04:59,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-17 11:04:59,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:59,270 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:59,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 11:04:59,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:59,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -561026481, now seen corresponding path program 1 times [2022-10-17 11:04:59,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884505282] [2022-10-17 11:04:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:59,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:59,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:04:59,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278163190] [2022-10-17 11:04:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:59,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:04:59,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:59,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:04:59,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 11:05:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:00,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 11:05:00,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-10-17 11:05:00,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:00,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:05:00,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884505282] [2022-10-17 11:05:00,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:05:00,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278163190] [2022-10-17 11:05:00,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278163190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:00,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:00,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:05:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204212377] [2022-10-17 11:05:00,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:00,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:05:00,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:05:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:05:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:05:00,634 INFO L87 Difference]: Start difference. First operand 307 states and 405 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-17 11:05:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:00,692 INFO L93 Difference]: Finished difference Result 577 states and 765 transitions. [2022-10-17 11:05:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:05:00,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 184 [2022-10-17 11:05:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:00,700 INFO L225 Difference]: With dead ends: 577 [2022-10-17 11:05:00,700 INFO L226 Difference]: Without dead ends: 312 [2022-10-17 11:05:00,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:05:00,704 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 2 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1603 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 [2022-10-17 11:05:00,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1603 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:05:00,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-10-17 11:05:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-10-17 11:05:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 196 states have (on average 1.2091836734693877) internal successors, (237), 198 states have internal predecessors, (237), 87 states have call successors, (87), 27 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-10-17 11:05:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 410 transitions. [2022-10-17 11:05:00,744 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 410 transitions. Word has length 184 [2022-10-17 11:05:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:00,745 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 410 transitions. [2022-10-17 11:05:00,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-17 11:05:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 410 transitions. [2022-10-17 11:05:00,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-10-17 11:05:00,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:00,750 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:00,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:05:00,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:05:00,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:00,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -673043207, now seen corresponding path program 1 times [2022-10-17 11:05:00,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:05:00,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973064721] [2022-10-17 11:05:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:05:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:05:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 11:05:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 11:05:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 11:05:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 11:05:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 11:05:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 11:05:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 11:05:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 11:05:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 11:05:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 11:05:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 11:05:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 11:05:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 11:05:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-17 11:05:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 11:05:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-17 11:05:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 11:05:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-17 11:05:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 11:05:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:05:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-17 11:05:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 11:05:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-17 11:05:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-17 11:05:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-17 11:05:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-17 11:05:04,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:05:04,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973064721] [2022-10-17 11:05:04,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973064721] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:05:04,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181312318] [2022-10-17 11:05:04,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:04,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:05:04,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:04,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:05:04,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 11:05:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:05,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-17 11:05:05,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:05,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:05:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-10-17 11:05:06,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:06,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181312318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:06,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 11:05:06,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 21 [2022-10-17 11:05:06,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277894448] [2022-10-17 11:05:06,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:06,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 11:05:06,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:05:06,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 11:05:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-10-17 11:05:06,178 INFO L87 Difference]: Start difference. First operand 312 states and 410 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-10-17 11:05:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:06,606 INFO L93 Difference]: Finished difference Result 570 states and 755 transitions. [2022-10-17 11:05:06,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 11:05:06,607 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 190 [2022-10-17 11:05:06,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:06,610 INFO L225 Difference]: With dead ends: 570 [2022-10-17 11:05:06,611 INFO L226 Difference]: Without dead ends: 316 [2022-10-17 11:05:06,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-10-17 11:05:06,613 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 64 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 11:05:06,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2438 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 0 Unknown, 61 Unchecked, 0.4s Time] [2022-10-17 11:05:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-17 11:05:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-10-17 11:05:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 200 states have (on average 1.205) internal successors, (241), 201 states have internal predecessors, (241), 87 states have call successors, (87), 28 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2022-10-17 11:05:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 414 transitions. [2022-10-17 11:05:06,642 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 414 transitions. Word has length 190 [2022-10-17 11:05:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:06,643 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 414 transitions. [2022-10-17 11:05:06,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-10-17 11:05:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 414 transitions. [2022-10-17 11:05:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-17 11:05:06,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:06,647 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:06,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:05:06,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:05:06,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1638806615, now seen corresponding path program 1 times [2022-10-17 11:05:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:05:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570551539] [2022-10-17 11:05:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:05:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:05:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 11:05:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 11:05:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 11:05:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 11:05:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 11:05:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 11:05:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 11:05:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 11:05:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 11:05:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 11:05:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 11:05:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 11:05:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 11:05:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 11:05:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 11:05:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-17 11:05:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-17 11:05:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-17 11:05:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-17 11:05:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-17 11:05:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 11:05:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 11:05:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-17 11:05:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-17 11:05:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-10-17 11:05:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-10-17 11:05:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2022-10-17 11:05:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:05:08,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570551539] [2022-10-17 11:05:08,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570551539] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:05:08,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195832113] [2022-10-17 11:05:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:08,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:05:08,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:08,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:05:08,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa3374e2-b1e3-4ca4-b9b7-89c28cba6ad4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 11:05:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:09,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2946 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-17 11:05:09,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:11,143 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$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