./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN --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 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be --- 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-6b4ec56 [2022-11-20 10:35:26,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:26,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:26,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:26,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:26,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:26,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:26,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:26,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:26,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:26,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:26,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:26,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:26,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:26,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:26,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:26,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:26,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:26,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:26,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:26,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:26,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:26,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:26,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:26,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:26,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:26,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:26,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:26,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:26,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:26,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:26,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:26,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:26,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:26,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:26,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:26,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:26,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:26,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:26,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:26,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:26,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:35:26,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:26,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:26,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:26,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:26,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:26,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:26,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:26,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:26,273 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:26,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:26,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:26,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:26,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:26,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:26,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:26,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:26,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:26,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:26,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:26,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:26,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:26,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:26,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:26,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:26,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:26,278 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_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be [2022-11-20 10:35:26,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:26,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:26,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:26,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:26,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:26,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2022-11-20 10:35:29,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:30,246 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:30,248 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2022-11-20 10:35:30,277 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/data/2911df9d7/87c7690226dc4d9abc06d09ec8e1f03a/FLAGe6ddb25ac [2022-11-20 10:35:30,296 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/data/2911df9d7/87c7690226dc4d9abc06d09ec8e1f03a [2022-11-20 10:35:30,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:30,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:30,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:30,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:30,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:30,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:30" (1/1) ... [2022-11-20 10:35:30,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5094a65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:30, skipping insertion in model container [2022-11-20 10:35:30,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:30" (1/1) ... [2022-11-20 10:35:30,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:30,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:30,849 WARN L237 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_2685a5df-b4f2-4e7b-a13a-33c02128f411/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2022-11-20 10:35:30,858 WARN L237 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_2685a5df-b4f2-4e7b-a13a-33c02128f411/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2022-11-20 10:35:32,032 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,033 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,034 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,034 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,036 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,050 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,050 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,052 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,053 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,055 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,057 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,057 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,058 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:32,591 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:35:32,592 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:35:32,593 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:35:32,594 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:35:32,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:35:32,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:35:32,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:35:32,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:35:32,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:35:32,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:35:32,843 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:35:33,201 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,204 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,236 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,242 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,249 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,251 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,271 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,276 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,277 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,278 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,279 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,332 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,333 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:33,421 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:33,450 WARN L237 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_2685a5df-b4f2-4e7b-a13a-33c02128f411/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2022-11-20 10:35:33,451 WARN L237 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_2685a5df-b4f2-4e7b-a13a-33c02128f411/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2022-11-20 10:35:33,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,498 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,498 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,499 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,509 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,510 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,512 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,513 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,514 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,514 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,515 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,515 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,551 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:35:33,552 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:35:33,553 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:35:33,554 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:35:33,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:35:33,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:35:33,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:35:33,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:35:33,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:35:33,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:35:33,590 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:35:33,702 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,703 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,715 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,717 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,719 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,721 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,734 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,736 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,736 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,737 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,738 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,739 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,740 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:35:33,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:34,060 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:34,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34 WrapperNode [2022-11-20 10:35:34,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:34,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:34,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:34,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:34,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,237 INFO L138 Inliner]: procedures = 775, calls = 2439, calls flagged for inlining = 68, calls inlined = 13, statements flattened = 611 [2022-11-20 10:35:34,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:34,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:34,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:34,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:34,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:34,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:34,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:34,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:34,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (1/1) ... [2022-11-20 10:35:34,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:34,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:34,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:34,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2022-11-20 10:35:34,433 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2022-11-20 10:35:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-20 10:35:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 10:35:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 10:35:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:35:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 10:35:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 10:35:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 10:35:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 10:35:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-20 10:35:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-20 10:35:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2022-11-20 10:35:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2022-11-20 10:35:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:35:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:35:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 10:35:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 10:35:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 10:35:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 10:35:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:35:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-20 10:35:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-20 10:35:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:35:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 10:35:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 10:35:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:35:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-20 10:35:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-20 10:35:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-20 10:35:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-20 10:35:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:35:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-20 10:35:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-20 10:35:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:35:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:35:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:35:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:35:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-20 10:35:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-20 10:35:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:35:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 10:35:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 10:35:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-20 10:35:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-20 10:35:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:35:34,837 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:34,840 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:35,992 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:35:36,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:35:36,013 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:35:36,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:36 BoogieIcfgContainer [2022-11-20 10:35:36,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:35:36,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:35:36,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:35:36,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:35:36,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:30" (1/3) ... [2022-11-20 10:35:36,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f7fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:36, skipping insertion in model container [2022-11-20 10:35:36,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:34" (2/3) ... [2022-11-20 10:35:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f7fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:36, skipping insertion in model container [2022-11-20 10:35:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:36" (3/3) ... [2022-11-20 10:35:36,029 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness.i [2022-11-20 10:35:36,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:35:36,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:35:36,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:35:36,135 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;@1b22e96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:35:36,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:35:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 108 states have (on average 1.1851851851851851) internal successors, (128), 109 states have internal predecessors, (128), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-20 10:35:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 10:35:36,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:36,163 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:36,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:36,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash 889774617, now seen corresponding path program 1 times [2022-11-20 10:35:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:36,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046124617] [2022-11-20 10:35:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:36,557 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:35:36,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179771803] [2022-11-20 10:35:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:36,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:36,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:36,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:35:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:37,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:35:37,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-20 10:35:37,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:37,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:37,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046124617] [2022-11-20 10:35:37,430 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:35:37,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179771803] [2022-11-20 10:35:37,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179771803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:37,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:37,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295368757] [2022-11-20 10:35:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:37,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:35:37,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:37,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:35:37,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:37,494 INFO L87 Difference]: Start difference. First operand has 169 states, 108 states have (on average 1.1851851851851851) internal successors, (128), 109 states have internal predecessors, (128), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:35:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:37,558 INFO L93 Difference]: Finished difference Result 334 states and 435 transitions. [2022-11-20 10:35:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:35:37,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2022-11-20 10:35:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:37,572 INFO L225 Difference]: With dead ends: 334 [2022-11-20 10:35:37,572 INFO L226 Difference]: Without dead ends: 163 [2022-11-20 10:35:37,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:37,580 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:37,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 406 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-20 10:35:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-20 10:35:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 103 states have (on average 1.145631067961165) internal successors, (118), 104 states have internal predecessors, (118), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-20 10:35:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 199 transitions. [2022-11-20 10:35:37,661 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 199 transitions. Word has length 139 [2022-11-20 10:35:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:37,668 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 199 transitions. [2022-11-20 10:35:37,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:35:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 199 transitions. [2022-11-20 10:35:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 10:35:37,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:37,672 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:37,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:37,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 10:35:37,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:37,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash -131293737, now seen corresponding path program 1 times [2022-11-20 10:35:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:37,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460238533] [2022-11-20 10:35:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:37,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:38,048 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:35:38,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363856356] [2022-11-20 10:35:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:38,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:38,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:38,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:38,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:35:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:35:38,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 10:35:38,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:38,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:38,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460238533] [2022-11-20 10:35:38,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:35:38,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363856356] [2022-11-20 10:35:38,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363856356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:38,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:38,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567550181] [2022-11-20 10:35:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:38,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:38,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:38,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:38,749 INFO L87 Difference]: Start difference. First operand 163 states and 199 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:35:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:38,817 INFO L93 Difference]: Finished difference Result 289 states and 353 transitions. [2022-11-20 10:35:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:38,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2022-11-20 10:35:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:38,821 INFO L225 Difference]: With dead ends: 289 [2022-11-20 10:35:38,821 INFO L226 Difference]: Without dead ends: 168 [2022-11-20 10:35:38,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:35:38,823 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 2 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:38,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 775 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-20 10:35:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-20 10:35:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 108 states have internal predecessors, (122), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2022-11-20 10:35:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 204 transitions. [2022-11-20 10:35:38,840 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 204 transitions. Word has length 139 [2022-11-20 10:35:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:38,841 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 204 transitions. [2022-11-20 10:35:38,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:35:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 204 transitions. [2022-11-20 10:35:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 10:35:38,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:38,844 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:38,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:39,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:39,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2039178523, now seen corresponding path program 1 times [2022-11-20 10:35:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:39,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655846408] [2022-11-20 10:35:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:39,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:35:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:35:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:35:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:35:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:35:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:35:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:35:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:35:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 10:35:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 10:35:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:35:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:35:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:35:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:35:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 10:35:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 10:35:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:35:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 10:35:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-20 10:35:41,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:41,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655846408] [2022-11-20 10:35:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655846408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:41,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048458322] [2022-11-20 10:35:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:41,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:41,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:41,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:41,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:35:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:42,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 10:35:42,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:42,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 10:35:42,643 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 10:35:42,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:42,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048458322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:42,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:42,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 21 [2022-11-20 10:35:42,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741753583] [2022-11-20 10:35:42,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:42,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:35:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:42,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:35:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:35:42,646 INFO L87 Difference]: Start difference. First operand 168 states and 204 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-20 10:35:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:42,740 INFO L93 Difference]: Finished difference Result 287 states and 350 transitions. [2022-11-20 10:35:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:35:42,741 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 145 [2022-11-20 10:35:42,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:42,744 INFO L225 Difference]: With dead ends: 287 [2022-11-20 10:35:42,745 INFO L226 Difference]: Without dead ends: 177 [2022-11-20 10:35:42,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-11-20 10:35:42,747 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:42,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 944 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2022-11-20 10:35:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-20 10:35:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-20 10:35:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 115 states have (on average 1.1478260869565218) internal successors, (132), 116 states have internal predecessors, (132), 41 states have call successors, (41), 19 states have call predecessors, (41), 20 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2022-11-20 10:35:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2022-11-20 10:35:42,776 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 145 [2022-11-20 10:35:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:42,778 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2022-11-20 10:35:42,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 9 states have internal predecessors, (71), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-20 10:35:42,779 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2022-11-20 10:35:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 10:35:42,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:42,790 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:42,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:43,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:43,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:43,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:43,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1113286307, now seen corresponding path program 1 times [2022-11-20 10:35:43,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:43,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029767774] [2022-11-20 10:35:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:43,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:35:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:35:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:35:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:35:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:35:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:35:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:35:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:35:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 10:35:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 10:35:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:35:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:35:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:35:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:35:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 10:35:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-20 10:35:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 10:35:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 10:35:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-20 10:35:43,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:43,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029767774] [2022-11-20 10:35:43,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029767774] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:43,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951152591] [2022-11-20 10:35:43,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:43,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:43,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:43,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:43,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:35:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:44,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 2358 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:44,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 10:35:44,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:44,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951152591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:44,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:44,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-20 10:35:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098574112] [2022-11-20 10:35:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:44,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:44,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:44,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:35:44,581 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:35:44,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:44,798 INFO L93 Difference]: Finished difference Result 291 states and 358 transitions. [2022-11-20 10:35:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:44,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 145 [2022-11-20 10:35:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:44,800 INFO L225 Difference]: With dead ends: 291 [2022-11-20 10:35:44,801 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 10:35:44,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:35:44,802 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 202 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:44,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 643 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 10:35:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-20 10:35:44,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 117 states have internal predecessors, (132), 42 states have call successors, (42), 19 states have call predecessors, (42), 20 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2022-11-20 10:35:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 218 transitions. [2022-11-20 10:35:44,819 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 218 transitions. Word has length 145 [2022-11-20 10:35:44,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:44,820 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 218 transitions. [2022-11-20 10:35:44,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:35:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 218 transitions. [2022-11-20 10:35:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-20 10:35:44,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:44,823 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:44,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:45,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-20 10:35:45,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:45,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -783624291, now seen corresponding path program 1 times [2022-11-20 10:35:45,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:45,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508084490] [2022-11-20 10:35:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:45,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:35:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:35:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:35:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:35:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:35:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:35:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:35:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:35:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:35:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:35:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:35:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 10:35:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 10:35:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:35:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:35:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:35:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:35:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 10:35:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 10:35:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 10:35:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 10:35:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-20 10:35:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508084490] [2022-11-20 10:35:46,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508084490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689187491] [2022-11-20 10:35:46,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:46,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:46,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:46,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:46,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:35:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:46,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:35:46,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:49,083 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-20 10:35:57,163 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:36:05,238 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:36:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 10:36:05,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:05,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689187491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:05,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:36:05,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-11-20 10:36:05,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269414600] [2022-11-20 10:36:05,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:05,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:36:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:05,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:36:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=175, Unknown=3, NotChecked=26, Total=240 [2022-11-20 10:36:05,271 INFO L87 Difference]: Start difference. First operand 179 states and 218 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 10:36:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:05,529 INFO L93 Difference]: Finished difference Result 298 states and 370 transitions. [2022-11-20 10:36:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:36:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 151 [2022-11-20 10:36:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:05,531 INFO L225 Difference]: With dead ends: 298 [2022-11-20 10:36:05,532 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 10:36:05,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=51, Invalid=222, Unknown=3, NotChecked=30, Total=306 [2022-11-20 10:36:05,533 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 5 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:05,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1055 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 293 Unchecked, 0.1s Time] [2022-11-20 10:36:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 10:36:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2022-11-20 10:36:05,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 118 states have (on average 1.1355932203389831) internal successors, (134), 118 states have internal predecessors, (134), 42 states have call successors, (42), 20 states have call predecessors, (42), 20 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2022-11-20 10:36:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 220 transitions. [2022-11-20 10:36:05,549 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 220 transitions. Word has length 151 [2022-11-20 10:36:05,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:05,550 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 220 transitions. [2022-11-20 10:36:05,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 10:36:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 220 transitions. [2022-11-20 10:36:05,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 10:36:05,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:05,552 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:05,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 10:36:05,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:36:05,761 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:05,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1862607659, now seen corresponding path program 1 times [2022-11-20 10:36:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:05,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725146258] [2022-11-20 10:36:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:36:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:36:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:36:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:36:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:36:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:36:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:36:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:06,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:36:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:36:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:36:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:36:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:36:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:36:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:36:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:36:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:36:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:36:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 10:36:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:36:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 10:36:07,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:07,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725146258] [2022-11-20 10:36:07,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725146258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:07,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:07,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:36:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34475029] [2022-11-20 10:36:07,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:07,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:36:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:07,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:36:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:36:07,136 INFO L87 Difference]: Start difference. First operand 181 states and 220 transitions. Second operand has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:36:08,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:08,285 INFO L93 Difference]: Finished difference Result 203 states and 245 transitions. [2022-11-20 10:36:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:36:08,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2022-11-20 10:36:08,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:08,287 INFO L225 Difference]: With dead ends: 203 [2022-11-20 10:36:08,288 INFO L226 Difference]: Without dead ends: 201 [2022-11-20 10:36:08,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:36:08,289 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 219 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:08,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 602 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:36:08,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-20 10:36:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2022-11-20 10:36:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.1322314049586777) internal successors, (137), 121 states have internal predecessors, (137), 42 states have call successors, (42), 21 states have call predecessors, (42), 21 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2022-11-20 10:36:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 223 transitions. [2022-11-20 10:36:08,317 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 223 transitions. Word has length 156 [2022-11-20 10:36:08,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:08,319 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 223 transitions. [2022-11-20 10:36:08,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:36:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 223 transitions. [2022-11-20 10:36:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-20 10:36:08,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:08,322 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:08,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:36:08,322 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash 443989020, now seen corresponding path program 1 times [2022-11-20 10:36:08,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:08,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627615283] [2022-11-20 10:36:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:08,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:36:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:36:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:36:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:36:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:36:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:36:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:36:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:36:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:36:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:36:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:36:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:36:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:36:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:36:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:36:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:36:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:36:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 10:36:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:36:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:36:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-20 10:36:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:14,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627615283] [2022-11-20 10:36:14,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627615283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:14,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:14,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-20 10:36:14,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642191785] [2022-11-20 10:36:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:14,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 10:36:14,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:14,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 10:36:14,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:36:14,448 INFO L87 Difference]: Start difference. First operand 185 states and 223 transitions. Second operand has 25 states, 23 states have (on average 3.260869565217391) internal successors, (75), 20 states have internal predecessors, (75), 12 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) [2022-11-20 10:36:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:17,082 INFO L93 Difference]: Finished difference Result 301 states and 363 transitions. [2022-11-20 10:36:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 10:36:17,083 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.260869565217391) internal successors, (75), 20 states have internal predecessors, (75), 12 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) Word has length 162 [2022-11-20 10:36:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:17,085 INFO L225 Difference]: With dead ends: 301 [2022-11-20 10:36:17,086 INFO L226 Difference]: Without dead ends: 204 [2022-11-20 10:36:17,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=216, Invalid=1424, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 10:36:17,089 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 325 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:17,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 469 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:36:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-20 10:36:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 188. [2022-11-20 10:36:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 123 states have (on average 1.1300813008130082) internal successors, (139), 124 states have internal predecessors, (139), 42 states have call successors, (42), 21 states have call predecessors, (42), 22 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2022-11-20 10:36:17,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 227 transitions. [2022-11-20 10:36:17,124 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 227 transitions. Word has length 162 [2022-11-20 10:36:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:17,125 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 227 transitions. [2022-11-20 10:36:17,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.260869565217391) internal successors, (75), 20 states have internal predecessors, (75), 12 states have call successors, (29), 6 states have call predecessors, (29), 5 states have return successors, (25), 12 states have call predecessors, (25), 12 states have call successors, (25) [2022-11-20 10:36:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 227 transitions. [2022-11-20 10:36:17,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-20 10:36:17,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:17,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:17,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:36:17,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:17,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:17,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1799994278, now seen corresponding path program 1 times [2022-11-20 10:36:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:17,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739569624] [2022-11-20 10:36:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:36:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:36:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:36:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:36:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:36:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:36:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:36:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:36:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:36:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:36:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:36:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:36:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:36:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:36:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:36:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:36:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:36:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:18,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 10:36:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:18,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 10:36:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 10:36:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-20 10:36:18,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:18,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739569624] [2022-11-20 10:36:18,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739569624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:18,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:18,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:36:18,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734337517] [2022-11-20 10:36:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:18,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:36:18,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:18,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:36:18,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:36:18,090 INFO L87 Difference]: Start difference. First operand 188 states and 227 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:36:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:19,138 INFO L93 Difference]: Finished difference Result 304 states and 366 transitions. [2022-11-20 10:36:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:36:19,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 162 [2022-11-20 10:36:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:19,142 INFO L225 Difference]: With dead ends: 304 [2022-11-20 10:36:19,142 INFO L226 Difference]: Without dead ends: 195 [2022-11-20 10:36:19,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:36:19,148 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 171 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:19,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 495 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:36:19,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-20 10:36:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 179. [2022-11-20 10:36:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.1120689655172413) internal successors, (129), 117 states have internal predecessors, (129), 41 states have call successors, (41), 20 states have call predecessors, (41), 21 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2022-11-20 10:36:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2022-11-20 10:36:19,179 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 162 [2022-11-20 10:36:19,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:19,180 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2022-11-20 10:36:19,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:36:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2022-11-20 10:36:19,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 10:36:19,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:19,183 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:19,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:36:19,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:19,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1168881178, now seen corresponding path program 1 times [2022-11-20 10:36:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:19,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832100286] [2022-11-20 10:36:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:36:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:36:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:36:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:36:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:36:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 10:36:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 10:36:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:36:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:36:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:36:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 10:36:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:36:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 10:36:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 10:36:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:36:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 10:36:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 10:36:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:36:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:36:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:36:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 10:36:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 10:36:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 10:36:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-20 10:36:20,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:20,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832100286] [2022-11-20 10:36:20,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832100286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:36:20,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465288106] [2022-11-20 10:36:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:36:20,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:36:20,981 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:36:21,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:36:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:21,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-20 10:36:21,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-20 10:36:21,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:21,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465288106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:21,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:36:21,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2022-11-20 10:36:21,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117445904] [2022-11-20 10:36:21,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:21,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:36:21,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:21,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:36:21,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:36:21,756 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:36:21,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:21,966 INFO L93 Difference]: Finished difference Result 311 states and 370 transitions. [2022-11-20 10:36:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:36:21,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 173 [2022-11-20 10:36:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:21,968 INFO L225 Difference]: With dead ends: 311 [2022-11-20 10:36:21,968 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 10:36:21,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:36:21,969 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 21 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:21,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 837 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:36:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 10:36:21,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 174. [2022-11-20 10:36:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 112 states have (on average 1.0982142857142858) internal successors, (123), 113 states have internal predecessors, (123), 41 states have call successors, (41), 20 states have call predecessors, (41), 20 states have return successors, (42), 40 states have call predecessors, (42), 40 states have call successors, (42) [2022-11-20 10:36:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2022-11-20 10:36:21,989 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 173 [2022-11-20 10:36:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:21,989 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2022-11-20 10:36:21,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:36:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2022-11-20 10:36:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-20 10:36:21,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:21,992 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:22,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:22,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:36:22,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:22,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:22,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1367943333, now seen corresponding path program 1 times [2022-11-20 10:36:22,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:22,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543571043] [2022-11-20 10:36:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:22,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:36:22,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53960751] [2022-11-20 10:36:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:22,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:36:22,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:36:22,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:36:22,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:37:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:48,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 344 conjunts are in the unsatisfiable core [2022-11-20 10:37:48,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:49,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:37:49,853 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 10:37:49,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 10:37:49,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 10:37:50,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 10:37:50,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-20 10:37:50,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 10:37:51,198 INFO L321 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2022-11-20 10:37:51,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 142 treesize of output 166 [2022-11-20 10:37:55,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-20 10:37:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 113 proven. 12 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 10:37:56,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:58,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543571043] [2022-11-20 10:37:58,837 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:37:58,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53960751] [2022-11-20 10:37:58,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53960751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:58,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:37:58,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-11-20 10:37:58,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410333909] [2022-11-20 10:37:58,840 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:58,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-20 10:37:58,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:58,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-20 10:37:58,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=2185, Unknown=3, NotChecked=0, Total=2352 [2022-11-20 10:37:58,842 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 37 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 26 states have internal predecessors, (85), 12 states have call successors, (30), 6 states have call predecessors, (30), 11 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2022-11-20 10:37:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:59,755 INFO L93 Difference]: Finished difference Result 339 states and 395 transitions. [2022-11-20 10:37:59,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 10:37:59,756 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 26 states have internal predecessors, (85), 12 states have call successors, (30), 6 states have call predecessors, (30), 11 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) Word has length 179 [2022-11-20 10:37:59,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:59,757 INFO L225 Difference]: With dead ends: 339 [2022-11-20 10:37:59,757 INFO L226 Difference]: Without dead ends: 194 [2022-11-20 10:37:59,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 165 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=190, Invalid=2563, Unknown=3, NotChecked=0, Total=2756 [2022-11-20 10:37:59,759 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 101 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1246 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:59,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 611 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 380 Invalid, 0 Unknown, 1246 Unchecked, 0.5s Time] [2022-11-20 10:37:59,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-20 10:37:59,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2022-11-20 10:37:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 125 states have (on average 1.088) internal successors, (136), 126 states have internal predecessors, (136), 43 states have call successors, (43), 24 states have call predecessors, (43), 24 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2022-11-20 10:37:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-11-20 10:37:59,788 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 179 [2022-11-20 10:37:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:59,789 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-11-20 10:37:59,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 26 states have internal predecessors, (85), 12 states have call successors, (30), 6 states have call predecessors, (30), 11 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2022-11-20 10:37:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-11-20 10:37:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-20 10:37:59,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:59,793 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:59,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:00,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:38:00,018 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:00,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:00,018 INFO L85 PathProgramCache]: Analyzing trace with hash 555700647, now seen corresponding path program 1 times [2022-11-20 10:38:00,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:00,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271345540] [2022-11-20 10:38:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:00,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:00,112 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:38:00,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166528530] [2022-11-20 10:38:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:00,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:38:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:38:00,114 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:38:00,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:38:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:00,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2593 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:38:00,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-11-20 10:38:00,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:00,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:00,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271345540] [2022-11-20 10:38:00,823 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:38:00,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166528530] [2022-11-20 10:38:00,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166528530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:00,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:00,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:38:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881868566] [2022-11-20 10:38:00,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:00,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:38:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:38:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:38:00,826 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:38:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:00,884 INFO L93 Difference]: Finished difference Result 330 states and 386 transitions. [2022-11-20 10:38:00,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:38:00,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 185 [2022-11-20 10:38:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:00,886 INFO L225 Difference]: With dead ends: 330 [2022-11-20 10:38:00,886 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 10:38:00,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:38:00,888 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 2 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:00,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1154 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:38:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 10:38:00,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-20 10:38:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 118 states have (on average 1.076271186440678) internal successors, (127), 119 states have internal predecessors, (127), 40 states have call successors, (40), 23 states have call predecessors, (40), 23 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2022-11-20 10:38:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 208 transitions. [2022-11-20 10:38:00,908 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 208 transitions. Word has length 185 [2022-11-20 10:38:00,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:00,908 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 208 transitions. [2022-11-20 10:38:00,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:38:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 208 transitions. [2022-11-20 10:38:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-20 10:38:00,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:00,911 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:00,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:01,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 10:38:01,126 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:01,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash 620768873, now seen corresponding path program 1 times [2022-11-20 10:38:01,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:38:01,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111230360] [2022-11-20 10:38:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:01,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:38:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:38:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:38:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:38:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:38:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 10:38:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:38:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:38:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 10:38:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:38:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:38:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 10:38:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 10:38:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 10:38:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:38:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:38:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:38:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:38:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:38:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 10:38:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 10:38:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 10:38:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:38:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 10:38:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 10:38:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 10:38:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:38:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 10:38:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 10:38:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 10:38:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-20 10:38:02,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:38:02,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111230360] [2022-11-20 10:38:02,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111230360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:02,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:02,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:38:02,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285259409] [2022-11-20 10:38:02,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:02,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:38:02,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:38:02,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:38:02,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:38:02,062 INFO L87 Difference]: Start difference. First operand 182 states and 208 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:38:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:02,258 INFO L93 Difference]: Finished difference Result 182 states and 208 transitions. [2022-11-20 10:38:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:38:02,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 185 [2022-11-20 10:38:02,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:02,259 INFO L225 Difference]: With dead ends: 182 [2022-11-20 10:38:02,259 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:38:02,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:38:02,261 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:02,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 103 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:38:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:38:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:38:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:38:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:38:02,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 185 [2022-11-20 10:38:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:02,262 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:38:02,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:38:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:38:02,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:38:02,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:38:02,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:38:02,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:38:03,431 INFO L899 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2022-11-20 10:38:03,432 INFO L895 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (or (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int)) (let ((.cse0 (+ (* 18446744073709551616 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|))) (or (= |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 0) (not (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0) (+ (* |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 442721857769029238784) (* 442721857769029238784 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) 442721857768999609256 (* |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 24)))) (not (<= 0 .cse0)) (not (< |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 18446744073709551616)) (not (<= .cse0 4))))) (not (< 0 |#StackHeapBarrier|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,432 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (or (forall ((|aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| Int) (|aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| Int) (|v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3| Int)) (let ((.cse0 (+ (* 18446744073709551616 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|))) (or (= |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 0) (not (<= 0 |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base_BEFORE_CALL_3|) 0) (+ (* |aux_div_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104| 442721857769029238784) (* 442721857769029238784 |aux_div_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116|) 442721857768999609256 (* |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 24)))) (not (<= 0 .cse0)) (not (< |aux_mod_aux_mod_v_ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1_BEFORE_CALL_5_104_116| 18446744073709551616)) (not (<= .cse0 4))))) (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,432 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L902 garLoopResultBuilder]: At program point L10017-4(line 10017) the Hoare annotation is: true [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point L10017-5(line 10017) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point L10017-7(line 10017) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point L10017(line 10017) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point L10017-2(line 10017) no Hoare annotation was computed. [2022-11-20 10:38:03,433 INFO L899 garLoopResultBuilder]: For program point L10017-3(line 10017) no Hoare annotation was computed. [2022-11-20 10:38:03,434 INFO L902 garLoopResultBuilder]: At program point aws_hash_table_is_validENTRY(lines 10015 10018) the Hoare annotation is: true [2022-11-20 10:38:03,434 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validEXIT(lines 10015 10018) no Hoare annotation was computed. [2022-11-20 10:38:03,434 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_is_validFINAL(lines 10015 10018) no Hoare annotation was computed. [2022-11-20 10:38:03,434 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-20 10:38:03,434 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-20 10:38:03,434 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-20 10:38:03,435 INFO L895 garLoopResultBuilder]: At program point hash_table_state_required_bytesENTRY(lines 10128 10140) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,435 INFO L899 garLoopResultBuilder]: For program point L10135-2(lines 10135 10137) no Hoare annotation was computed. [2022-11-20 10:38:03,435 INFO L895 garLoopResultBuilder]: At program point L10131(line 10131) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= hash_table_state_required_bytes_~size |hash_table_state_required_bytes_#in~size|) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= |hash_table_state_required_bytes_~#elemsize~0.offset| 0))) [2022-11-20 10:38:03,435 INFO L899 garLoopResultBuilder]: For program point L10131-1(line 10131) no Hoare annotation was computed. [2022-11-20 10:38:03,435 INFO L895 garLoopResultBuilder]: At program point L10135(line 10135) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= hash_table_state_required_bytes_~required_bytes.offset |hash_table_state_required_bytes_#in~required_bytes.offset|) (= (select |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base|) 0) (= (store |old(#valid)| |hash_table_state_required_bytes_~#elemsize~0.base| (select |#valid| |hash_table_state_required_bytes_~#elemsize~0.base|)) |#valid|) (= hash_table_state_required_bytes_~required_bytes.base |hash_table_state_required_bytes_#in~required_bytes.base|) (= (* |hash_table_state_required_bytes_#in~size| 24) |hash_table_state_required_bytes_#t~mem1321|))) [2022-11-20 10:38:03,436 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesEXIT(lines 10128 10140) no Hoare annotation was computed. [2022-11-20 10:38:03,436 INFO L899 garLoopResultBuilder]: For program point L10135-1(line 10135) no Hoare annotation was computed. [2022-11-20 10:38:03,436 INFO L899 garLoopResultBuilder]: For program point L10131-2(lines 10131 10133) no Hoare annotation was computed. [2022-11-20 10:38:03,436 INFO L899 garLoopResultBuilder]: For program point hash_table_state_required_bytesFINAL(lines 10128 10140) no Hoare annotation was computed. [2022-11-20 10:38:03,436 INFO L902 garLoopResultBuilder]: At program point memset_override_0_implENTRY(lines 7397 7412) the Hoare annotation is: true [2022-11-20 10:38:03,436 INFO L899 garLoopResultBuilder]: For program point memset_override_0_implFINAL(lines 7397 7412) no Hoare annotation was computed. [2022-11-20 10:38:03,437 INFO L899 garLoopResultBuilder]: For program point L7403-1(line 7403) no Hoare annotation was computed. [2022-11-20 10:38:03,437 INFO L902 garLoopResultBuilder]: At program point L7403(line 7403) the Hoare annotation is: true [2022-11-20 10:38:03,437 INFO L899 garLoopResultBuilder]: For program point L7407-4(lines 7407 7409) no Hoare annotation was computed. [2022-11-20 10:38:03,437 INFO L902 garLoopResultBuilder]: At program point L7407-3(lines 7407 7409) the Hoare annotation is: true [2022-11-20 10:38:03,437 INFO L899 garLoopResultBuilder]: For program point L7407-2(lines 7407 7409) no Hoare annotation was computed. [2022-11-20 10:38:03,437 INFO L899 garLoopResultBuilder]: For program point memset_override_0_implEXIT(lines 7397 7412) no Hoare annotation was computed. [2022-11-20 10:38:03,437 INFO L902 garLoopResultBuilder]: At program point L7398(line 7398) the Hoare annotation is: true [2022-11-20 10:38:03,438 INFO L899 garLoopResultBuilder]: For program point L7400(line 7400) no Hoare annotation was computed. [2022-11-20 10:38:03,438 INFO L902 garLoopResultBuilder]: At program point L7398-1(line 7398) the Hoare annotation is: true [2022-11-20 10:38:03,438 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedEXIT(lines 2586 2594) no Hoare annotation was computed. [2022-11-20 10:38:03,438 INFO L899 garLoopResultBuilder]: For program point L2498-1(lines 2498 2499) no Hoare annotation was computed. [2022-11-20 10:38:03,438 INFO L899 garLoopResultBuilder]: For program point aws_mul_size_checkedFINAL(lines 2586 2594) no Hoare annotation was computed. [2022-11-20 10:38:03,438 INFO L895 garLoopResultBuilder]: At program point aws_mul_size_checkedENTRY(lines 2586 2594) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,439 INFO L895 garLoopResultBuilder]: At program point L2501(lines 2497 2502) the Hoare annotation is: (let ((.cse1 (= |old(#valid)| |#valid|)) (.cse0 (< 0 |#StackHeapBarrier|))) (or (not .cse0) (and (<= (+ |aws_mul_size_checked_aws_mul_u64_checked_#res#1| 1) 0) .cse1 .cse0) (and (= (* |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_#in~a#1|) (select (select |#memory_int| |aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_#in~r#1.offset|)) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_42| Int) (v_ArrVal_1105 Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42| v_ArrVal_1105) |#valid|))) .cse1 .cse0))) [2022-11-20 10:38:03,439 INFO L895 garLoopResultBuilder]: At program point L2498(line 2498) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-20 10:38:03,439 INFO L899 garLoopResultBuilder]: For program point L2499-1(line 2499) no Hoare annotation was computed. [2022-11-20 10:38:03,439 INFO L895 garLoopResultBuilder]: At program point L2499(line 2499) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |aws_mul_size_checked_#in~r#1.base|) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_42| Int) (v_ArrVal_1105 Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42| v_ArrVal_1105) |#valid|))) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |aws_mul_size_checked_#in~a#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|) (= |aws_mul_size_checked_#in~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~b#1|) (= |old(#valid)| |#valid|) (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |aws_mul_size_checked_#in~r#1.offset|))) [2022-11-20 10:38:03,440 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-20 10:38:03,440 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-20 10:38:03,440 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-20 10:38:03,440 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,440 INFO L902 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~VOIDENTRY(line -1) the Hoare annotation is: true [2022-11-20 10:38:03,440 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~VOIDFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,440 INFO L899 garLoopResultBuilder]: For program point L6852(line 6852) no Hoare annotation was computed. [2022-11-20 10:38:03,441 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,441 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2022-11-20 10:38:03,441 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2022-11-20 10:38:03,441 INFO L902 garLoopResultBuilder]: At program point hash_table_state_is_validENTRY(lines 10026 10073) the Hoare annotation is: true [2022-11-20 10:38:03,441 INFO L899 garLoopResultBuilder]: For program point L10028(lines 10028 10032) no Hoare annotation was computed. [2022-11-20 10:38:03,441 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validEXIT(lines 10026 10073) no Hoare annotation was computed. [2022-11-20 10:38:03,442 INFO L899 garLoopResultBuilder]: For program point hash_table_state_is_validFINAL(lines 10026 10073) no Hoare annotation was computed. [2022-11-20 10:38:03,442 INFO L899 garLoopResultBuilder]: For program point L10054-1(line 10054) no Hoare annotation was computed. [2022-11-20 10:38:03,442 INFO L902 garLoopResultBuilder]: At program point L10054(line 10054) the Hoare annotation is: true [2022-11-20 10:38:03,442 INFO L902 garLoopResultBuilder]: At program point my_memsetENTRY(lines 7414 7416) the Hoare annotation is: true [2022-11-20 10:38:03,442 INFO L899 garLoopResultBuilder]: For program point my_memsetFINAL(lines 7414 7416) no Hoare annotation was computed. [2022-11-20 10:38:03,442 INFO L899 garLoopResultBuilder]: For program point L7415-1(line 7415) no Hoare annotation was computed. [2022-11-20 10:38:03,442 INFO L902 garLoopResultBuilder]: At program point L7415(line 7415) the Hoare annotation is: true [2022-11-20 10:38:03,443 INFO L899 garLoopResultBuilder]: For program point my_memsetEXIT(lines 7414 7416) no Hoare annotation was computed. [2022-11-20 10:38:03,443 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-20 10:38:03,443 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-20 10:38:03,443 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-20 10:38:03,443 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-20 10:38:03,443 INFO L895 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (= ~tl_last_error~0 |old(~tl_last_error~0)|)) [2022-11-20 10:38:03,443 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2022-11-20 10:38:03,444 INFO L899 garLoopResultBuilder]: For program point L7385(lines 7385 7387) no Hoare annotation was computed. [2022-11-20 10:38:03,444 INFO L899 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2022-11-20 10:38:03,444 INFO L899 garLoopResultBuilder]: For program point L9941(lines 9941 9943) no Hoare annotation was computed. [2022-11-20 10:38:03,444 INFO L902 garLoopResultBuilder]: At program point L9945(line 9945) the Hoare annotation is: true [2022-11-20 10:38:03,444 INFO L899 garLoopResultBuilder]: For program point L9945-1(line 9945) no Hoare annotation was computed. [2022-11-20 10:38:03,444 INFO L902 garLoopResultBuilder]: At program point L9954(line 9954) the Hoare annotation is: true [2022-11-20 10:38:03,444 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_clearEXIT(lines 9933 9958) no Hoare annotation was computed. [2022-11-20 10:38:03,445 INFO L902 garLoopResultBuilder]: At program point aws_hash_table_clearENTRY(lines 9933 9958) the Hoare annotation is: true [2022-11-20 10:38:03,445 INFO L899 garLoopResultBuilder]: For program point L9954-1(line 9954) no Hoare annotation was computed. [2022-11-20 10:38:03,445 INFO L899 garLoopResultBuilder]: For program point L9938(line 9938) no Hoare annotation was computed. [2022-11-20 10:38:03,445 INFO L899 garLoopResultBuilder]: For program point aws_hash_table_clearFINAL(lines 9933 9958) no Hoare annotation was computed. [2022-11-20 10:38:03,445 INFO L902 garLoopResultBuilder]: At program point L9934-1(line 9934) the Hoare annotation is: true [2022-11-20 10:38:03,445 INFO L899 garLoopResultBuilder]: For program point L9934-2(line 9934) no Hoare annotation was computed. [2022-11-20 10:38:03,445 INFO L899 garLoopResultBuilder]: For program point L9938-2(lines 9938 9951) no Hoare annotation was computed. [2022-11-20 10:38:03,446 INFO L899 garLoopResultBuilder]: For program point L9938-3(lines 9938 9951) no Hoare annotation was computed. [2022-11-20 10:38:03,446 INFO L902 garLoopResultBuilder]: At program point L9934(line 9934) the Hoare annotation is: true [2022-11-20 10:38:03,446 INFO L899 garLoopResultBuilder]: For program point L9947(lines 9947 9949) no Hoare annotation was computed. [2022-11-20 10:38:03,446 INFO L899 garLoopResultBuilder]: For program point L9939-1(lines 9939 9950) no Hoare annotation was computed. [2022-11-20 10:38:03,446 INFO L902 garLoopResultBuilder]: At program point L9939-3(lines 9939 9950) the Hoare annotation is: true [2022-11-20 10:38:03,446 INFO L902 garLoopResultBuilder]: At program point L9939-4(lines 9939 9950) the Hoare annotation is: true [2022-11-20 10:38:03,446 INFO L902 garLoopResultBuilder]: At program point L9948(line 9948) the Hoare annotation is: true [2022-11-20 10:38:03,447 INFO L899 garLoopResultBuilder]: For program point L9948-1(line 9948) no Hoare annotation was computed. [2022-11-20 10:38:03,447 INFO L899 garLoopResultBuilder]: For program point L9944(lines 9944 9946) no Hoare annotation was computed. [2022-11-20 10:38:03,447 INFO L899 garLoopResultBuilder]: For program point L9944-2(lines 9944 9946) no Hoare annotation was computed. [2022-11-20 10:38:03,447 INFO L902 garLoopResultBuilder]: At program point L9957(line 9957) the Hoare annotation is: true [2022-11-20 10:38:03,447 INFO L902 garLoopResultBuilder]: At program point L9957-1(line 9957) the Hoare annotation is: true [2022-11-20 10:38:03,447 INFO L899 garLoopResultBuilder]: For program point L9957-2(line 9957) no Hoare annotation was computed. [2022-11-20 10:38:03,448 INFO L895 garLoopResultBuilder]: At program point __CPROVER_overflow_multENTRY(lines 253 256) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,448 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multEXIT(lines 253 256) no Hoare annotation was computed. [2022-11-20 10:38:03,448 INFO L899 garLoopResultBuilder]: For program point __CPROVER_overflow_multFINAL(lines 253 256) no Hoare annotation was computed. [2022-11-20 10:38:03,448 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoFINAL(lines 2626 2631) no Hoare annotation was computed. [2022-11-20 10:38:03,448 INFO L899 garLoopResultBuilder]: For program point aws_is_power_of_twoEXIT(lines 2626 2631) no Hoare annotation was computed. [2022-11-20 10:38:03,448 INFO L902 garLoopResultBuilder]: At program point aws_is_power_of_twoENTRY(lines 2626 2631) the Hoare annotation is: true [2022-11-20 10:38:03,449 INFO L895 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: (let ((.cse0 (= |old(#valid)| |#valid|)) (.cse1 (< 0 |#StackHeapBarrier|))) (or (and (= (select (select |#memory_int| |aws_add_size_checked_#in~r#1.base|) |aws_add_size_checked_#in~r#1.offset|) (+ |aws_add_size_checked_#in~b#1| |aws_add_size_checked_#in~a#1|)) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_42| Int) (v_ArrVal_1105 Int)) (and (= (select |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42|) 0) (= (store |old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_42| v_ArrVal_1105) |#valid|))) .cse0 .cse1) (not .cse1) (and (<= (+ |aws_add_size_checked_aws_add_u64_checked_#res#1| 1) 0) .cse0 .cse1))) [2022-11-20 10:38:03,449 INFO L895 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|))) [2022-11-20 10:38:03,449 INFO L895 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: (or (not (< 0 |#StackHeapBarrier|)) (and (= |aws_add_size_checked_#in~b#1| |aws_add_size_checked_aws_add_u64_checked_~b#1|) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |aws_add_size_checked_#in~r#1.base| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |aws_add_size_checked_#in~r#1.offset| |aws_add_size_checked_aws_add_u64_checked_~r#1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|) (= |aws_add_size_checked_#in~a#1| |aws_add_size_checked_aws_add_u64_checked_~a#1|))) [2022-11-20 10:38:03,449 INFO L899 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2022-11-20 10:38:03,449 INFO L895 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: (or (and (= ~tl_last_error~0 |old(~tl_last_error~0)|) (= |old(#valid)| |#valid|)) (not (< 0 |#StackHeapBarrier|))) [2022-11-20 10:38:03,450 INFO L899 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2022-11-20 10:38:03,450 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2022-11-20 10:38:03,450 INFO L899 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2022-11-20 10:38:03,450 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-11-20 10:38:03,450 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (not (= .cse0 0)) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (<= .cse0 4) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|)) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2022-11-20 10:38:03,451 INFO L895 garLoopResultBuilder]: At program point L6811-1(line 6811) the Hoare annotation is: (and (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (<= (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616) 4) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|)) [2022-11-20 10:38:03,451 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 4) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|)) [2022-11-20 10:38:03,451 INFO L899 garLoopResultBuilder]: For program point L6815-3(line 6815) no Hoare annotation was computed. [2022-11-20 10:38:03,451 INFO L895 garLoopResultBuilder]: At program point L6815-2(line 6815) the Hoare annotation is: (let ((.cse0 (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|)) (.cse1 (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|)) (.cse2 (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|)) (.cse3 (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0)) (.cse4 (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|))) (.cse5 (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1)) (.cse6 (< 0 |#StackHeapBarrier|))) (or (and (<= (+ |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 1) 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (let ((.cse7 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= (+ (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24) 442721857768999609256) (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset|)) (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret548#1| 0) (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) .cse0 .cse1 .cse2 (not (= .cse7 0)) .cse3 (<= .cse7 4) .cse4 .cse5 .cse6)))) [2022-11-20 10:38:03,451 INFO L899 garLoopResultBuilder]: For program point L6840-1(line 6840) no Hoare annotation was computed. [2022-11-20 10:38:03,452 INFO L895 garLoopResultBuilder]: At program point L6840(line 6840) the Hoare annotation is: false [2022-11-20 10:38:03,452 INFO L899 garLoopResultBuilder]: For program point L7179-1(line 7179) no Hoare annotation was computed. [2022-11-20 10:38:03,452 INFO L895 garLoopResultBuilder]: At program point L7179(line 7179) the Hoare annotation is: false [2022-11-20 10:38:03,452 INFO L895 garLoopResultBuilder]: At program point L10148(line 10148) the Hoare annotation is: false [2022-11-20 10:38:03,452 INFO L899 garLoopResultBuilder]: For program point L7175(lines 7175 7183) no Hoare annotation was computed. [2022-11-20 10:38:03,452 INFO L899 garLoopResultBuilder]: For program point L10148-1(line 10148) no Hoare annotation was computed. [2022-11-20 10:38:03,452 INFO L899 garLoopResultBuilder]: For program point L6816-1(line 6816) no Hoare annotation was computed. [2022-11-20 10:38:03,453 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,453 INFO L895 garLoopResultBuilder]: At program point L6816(line 6816) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base|) 0)) (.cse1 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.offset| 0) (= .cse0 (+ (* |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 24) 442721857768999609256)) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (not (= .cse1 0)) (= .cse0 |ULTIMATE.start_ensure_allocated_hash_table_#t~mem549#1|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (<= .cse1 4) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~#required_bytes~0#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|)) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2022-11-20 10:38:03,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,453 INFO L899 garLoopResultBuilder]: For program point L6812-1(line 6812) no Hoare annotation was computed. [2022-11-20 10:38:03,454 INFO L895 garLoopResultBuilder]: At program point L10144(line 10144) the Hoare annotation is: false [2022-11-20 10:38:03,454 INFO L895 garLoopResultBuilder]: At program point L6812(line 6812) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 18446744073709551616))) (and (or (and (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 1) (not (= .cse0 0))) (and (= |ULTIMATE.start_ensure_allocated_hash_table_#t~ret547#1| 0) (not (= |ULTIMATE.start_ensure_allocated_hash_table_~num_entries~0#1| 1)))) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (<= .cse0 4) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|))) [2022-11-20 10:38:03,454 INFO L895 garLoopResultBuilder]: At program point L10144-1(line 10144) the Hoare annotation is: false [2022-11-20 10:38:03,454 INFO L899 garLoopResultBuilder]: For program point L10144-2(line 10144) no Hoare annotation was computed. [2022-11-20 10:38:03,454 INFO L899 garLoopResultBuilder]: For program point L6841-1(line 6841) no Hoare annotation was computed. [2022-11-20 10:38:03,454 INFO L895 garLoopResultBuilder]: At program point L6841(line 6841) the Hoare annotation is: false [2022-11-20 10:38:03,455 INFO L895 garLoopResultBuilder]: At program point L6833(lines 6831 6834) the Hoare annotation is: false [2022-11-20 10:38:03,455 INFO L899 garLoopResultBuilder]: For program point L7180-1(line 7180) no Hoare annotation was computed. [2022-11-20 10:38:03,455 INFO L895 garLoopResultBuilder]: At program point L7180(line 7180) the Hoare annotation is: false [2022-11-20 10:38:03,455 INFO L895 garLoopResultBuilder]: At program point L10149(line 10149) the Hoare annotation is: false [2022-11-20 10:38:03,455 INFO L895 garLoopResultBuilder]: At program point L10149-1(line 10149) the Hoare annotation is: false [2022-11-20 10:38:03,455 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point L7176(lines 7176 7182) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point L6821(lines 6821 6828) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point L10141(lines 10141 10153) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point L6809(lines 6809 6819) no Hoare annotation was computed. [2022-11-20 10:38:03,456 INFO L899 garLoopResultBuilder]: For program point L7185(lines 7185 7187) no Hoare annotation was computed. [2022-11-20 10:38:03,457 INFO L902 garLoopResultBuilder]: At program point L10154(line 10154) the Hoare annotation is: true [2022-11-20 10:38:03,457 INFO L899 garLoopResultBuilder]: For program point L7181-1(line 7181) no Hoare annotation was computed. [2022-11-20 10:38:03,457 INFO L895 garLoopResultBuilder]: At program point L7181(line 7181) the Hoare annotation is: false [2022-11-20 10:38:03,457 INFO L895 garLoopResultBuilder]: At program point L6822(line 6822) the Hoare annotation is: false [2022-11-20 10:38:03,457 INFO L899 garLoopResultBuilder]: For program point L10150-1(line 10150) no Hoare annotation was computed. [2022-11-20 10:38:03,457 INFO L899 garLoopResultBuilder]: For program point L6822-1(line 6822) no Hoare annotation was computed. [2022-11-20 10:38:03,457 INFO L895 garLoopResultBuilder]: At program point L10150(line 10150) the Hoare annotation is: false [2022-11-20 10:38:03,458 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (= |ULTIMATE.start_ensure_allocated_hash_table_~max_table_entries#1| 4) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_ensure_allocated_hash_table_~map#1.base| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| |ULTIMATE.start_ensure_allocated_hash_table_~map#1.offset|) (= |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_aws_hash_table_clear_harness_~#map~0#1.base|) 1) (< 0 |#StackHeapBarrier|)) [2022-11-20 10:38:03,458 INFO L895 garLoopResultBuilder]: At program point L6843(lines 6837 6844) the Hoare annotation is: false [2022-11-20 10:38:03,458 INFO L899 garLoopResultBuilder]: For program point L6839-1(line 6839) no Hoare annotation was computed. [2022-11-20 10:38:03,458 INFO L895 garLoopResultBuilder]: At program point L6839(line 6839) the Hoare annotation is: false [2022-11-20 10:38:03,458 INFO L899 garLoopResultBuilder]: For program point L6810-1(line 6810) no Hoare annotation was computed. [2022-11-20 10:38:03,459 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-20 10:38:03,459 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-20 10:38:03,459 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-20 10:38:03,459 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-20 10:38:03,459 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-20 10:38:03,459 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-20 10:38:03,463 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:03,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:38:03,476 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,477 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,480 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,481 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,481 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,482 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,482 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,482 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,483 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,484 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,484 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:38:03 BoogieIcfgContainer [2022-11-20 10:38:03,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:38:03,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:38:03,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:38:03,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:38:03,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:36" (3/4) ... [2022-11-20 10:38:03,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_is_valid [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_is_valid [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_memset [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_table_state_required_bytes [2022-11-20 10:38:03,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure memset_override_0_impl [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_hash_table_clear [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_mult [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_is_power_of_two [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mul_size_checked [2022-11-20 10:38:03,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-20 10:38:03,499 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:38:03,499 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-20 10:38:03,499 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2022-11-20 10:38:03,511 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2022-11-20 10:38:03,512 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2022-11-20 10:38:03,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 10:38:03,514 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 10:38:03,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 10:38:03,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 10:38:03,517 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:38:03,517 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:38:03,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 < unknown-#StackHeapBarrier-unknown) || ((\result + 1 <= 0 && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown)) || (((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v___CPROVER_overflow_mult_~#c~1.base_42 : int, v_ArrVal_1105 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42] == 0 && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42 := v_ArrVal_1105] == \valid)) && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-20 10:38:03,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (\exists v___CPROVER_overflow_mult_~#c~1.base_42 : int, v_ArrVal_1105 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42] == 0 && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42 := v_ArrVal_1105] == \valid)) && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || ((\result + 1 <= 0 && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) [2022-11-20 10:38:03,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:38:03,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:38:03,934 INFO L158 Benchmark]: Toolchain (without parser) took 153629.41ms. Allocated memory was 142.6MB in the beginning and 499.1MB in the end (delta: 356.5MB). Free memory was 96.2MB in the beginning and 266.2MB in the end (delta: -170.0MB). Peak memory consumption was 184.9MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,934 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:38:03,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3754.63ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 96.2MB in the beginning and 107.8MB in the end (delta: -11.6MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 176.83ms. Allocated memory is still 184.5MB. Free memory was 107.8MB in the beginning and 97.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,935 INFO L158 Benchmark]: Boogie Preprocessor took 101.63ms. Allocated memory is still 184.5MB. Free memory was 97.3MB in the beginning and 90.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,935 INFO L158 Benchmark]: RCFGBuilder took 1675.80ms. Allocated memory is still 184.5MB. Free memory was 90.0MB in the beginning and 96.1MB in the end (delta: -6.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,936 INFO L158 Benchmark]: TraceAbstraction took 147465.21ms. Allocated memory was 184.5MB in the beginning and 499.1MB in the end (delta: 314.6MB). Free memory was 96.1MB in the beginning and 388.9MB in the end (delta: -292.8MB). Peak memory consumption was 276.6MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,936 INFO L158 Benchmark]: Witness Printer took 447.06ms. Allocated memory is still 499.1MB. Free memory was 388.9MB in the beginning and 266.2MB in the end (delta: 122.7MB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. [2022-11-20 10:38:03,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3754.63ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 96.2MB in the beginning and 107.8MB in the end (delta: -11.6MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 176.83ms. Allocated memory is still 184.5MB. Free memory was 107.8MB in the beginning and 97.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.63ms. Allocated memory is still 184.5MB. Free memory was 97.3MB in the beginning and 90.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1675.80ms. Allocated memory is still 184.5MB. Free memory was 90.0MB in the beginning and 96.1MB in the end (delta: -6.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 147465.21ms. Allocated memory was 184.5MB in the beginning and 499.1MB in the end (delta: 314.6MB). Free memory was 96.1MB in the beginning and 388.9MB in the end (delta: -292.8MB). Peak memory consumption was 276.6MB. Max. memory is 16.1GB. * Witness Printer took 447.06ms. Allocated memory is still 499.1MB. Free memory was 388.9MB in the beginning and 266.2MB in the end (delta: 122.7MB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 169 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 147.4s, OverallIterations: 12, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1161 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1101 mSDsluCounter, 8094 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1573 IncrementalHoareTripleChecker+Unchecked, 6408 mSDsCounter, 494 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4636 IncrementalHoareTripleChecker+Invalid, 6703 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 494 mSolverCounterUnsat, 1686 mSDtfsCounter, 4636 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1799 GetRequests, 1590 SyntacticMatches, 6 SemanticMatches, 203 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=10, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 55 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 555 PreInvPairs, 600 NumberOfFragments, 876 HoareAnnotationTreeSize, 555 FomulaSimplifications, 217 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 67 FomulaSimplificationsInter, 695 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 90.6s SatisfiabilityAnalysisTime, 43.4s InterpolantComputationTime, 2535 NumberOfCodeBlocks, 2535 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2519 ConstructedInterpolants, 59 QuantifiedInterpolants, 7230 SizeOfPredicates, 74 NumberOfNonLiveVariables, 19487 ConjunctsInSsa, 485 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 3146/3196 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7407]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2497]: Loop Invariant [2022-11-20 10:38:03,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,953 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,953 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] Derived loop invariant: (!(0 < unknown-#StackHeapBarrier-unknown) || ((\result + 1 <= 0 && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown)) || (((\old(b) * \old(a) == unknown-#memory_int-unknown[r][r] && (\exists v___CPROVER_overflow_mult_~#c~1.base_42 : int, v_ArrVal_1105 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42] == 0 && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42 := v_ArrVal_1105] == \valid)) && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 2541]: Loop Invariant [2022-11-20 10:38:03,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,955 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] [2022-11-20 10:38:03,955 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1105,QUANTIFIED] [2022-11-20 10:38:03,955 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v___CPROVER_overflow_mult_~#c~1.base_42,QUANTIFIED] Derived loop invariant: ((((unknown-#memory_int-unknown[r][r] == \old(b) + \old(a) && (\exists v___CPROVER_overflow_mult_~#c~1.base_42 : int, v_ArrVal_1105 : int :: \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42] == 0 && \old(\valid)[v___CPROVER_overflow_mult_~#c~1.base_42 := v_ArrVal_1105] == \valid)) && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) || !(0 < unknown-#StackHeapBarrier-unknown)) || ((\result + 1 <= 0 && \old(\valid) == \valid) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10154]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9939]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 10:38:03,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2685a5df-b4f2-4e7b-a13a-33c02128f411/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE