./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- 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 12:08:42,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:08:42,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:08:42,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:08:42,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:08:42,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:08:42,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:08:42,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:08:42,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:08:42,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:08:42,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:08:42,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:08:42,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:08:42,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:08:42,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:08:42,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:08:42,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:08:42,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:08:42,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:08:42,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:08:42,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:08:42,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:08:42,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:08:42,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:08:42,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:08:42,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:08:42,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:08:42,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:08:42,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:08:42,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:08:42,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:08:42,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:08:42,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:08:42,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:08:42,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:08:42,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:08:42,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:08:42,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:08:42,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:08:42,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:08:42,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:08:42,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:08:42,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:08:42,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:08:42,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:08:42,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:08:42,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:08:42,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:08:42,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:08:42,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:08:42,334 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:08:42,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:08:42,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:08:42,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:08:42,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:08:42,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:08:42,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:08:42,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:08:42,336 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:08:42,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:08:42,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:08:42,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:08:42,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:08:42,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:08:42,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:08:42,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:08:42,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:08:42,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:08:42,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:08:42,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:08:42,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:08:42,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:08:42,341 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2022-11-20 12:08:42,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:08:42,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:08:42,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:08:42,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:08:42,678 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:08:42,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-20 12:08:45,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:08:46,267 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:08:46,268 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-20 12:08:46,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/16bce4e9d/91d7157411d749aead8c245fa7656cd7/FLAG7b63082ac [2022-11-20 12:08:46,329 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/16bce4e9d/91d7157411d749aead8c245fa7656cd7 [2022-11-20 12:08:46,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:08:46,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:08:46,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:08:46,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:08:46,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:08:46,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:46" (1/1) ... [2022-11-20 12:08:46,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c13fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:46, skipping insertion in model container [2022-11-20 12:08:46,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:46" (1/1) ... [2022-11-20 12:08:46,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:08:46,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:08:46,767 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-20 12:08:46,775 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-20 12:08:47,731 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:08:47,841 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,843 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,845 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,846 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,850 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,879 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,880 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,889 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,889 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,899 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,900 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,901 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:47,901 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,323 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:08:48,324 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:08:48,326 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:08:48,327 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:08:48,328 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:08:48,329 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:08:48,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:08:48,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:08:48,332 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:08:48,333 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:08:48,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,575 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:08:48,673 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:08:48,699 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-20 12:08:48,706 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-20 12:08:48,766 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:08:48,807 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,812 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,812 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,819 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,819 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,821 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,821 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,822 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,828 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,828 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,829 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,880 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:08:48,882 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:08:48,882 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:08:48,883 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:08:48,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:08:48,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:08:48,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:08:48,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:08:48,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:08:48,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:08:48,933 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,941 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:08:48,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:08:49,202 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:08:49,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49 WrapperNode [2022-11-20 12:08:49,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:08:49,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:08:49,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:08:49,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:08:49,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,425 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 683 [2022-11-20 12:08:49,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:08:49,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:08:49,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:08:49,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:08:49,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:08:49,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:08:49,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:08:49,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:08:49,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (1/1) ... [2022-11-20 12:08:49,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:08:49,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:49,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:08:49,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:08:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-11-20 12:08:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-11-20 12:08:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:08:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 12:08:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 12:08:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 12:08:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 12:08:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 12:08:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 12:08:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:08:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 12:08:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 12:08:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:08:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:08:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:08:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:08:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:08:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:08:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:08:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 12:08:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 12:08:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-20 12:08:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-20 12:08:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 12:08:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 12:08:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-20 12:08:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-20 12:08:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:08:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:08:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:08:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:08:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:08:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 12:08:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 12:08:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 12:08:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 12:08:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:08:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-11-20 12:08:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-11-20 12:08:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2022-11-20 12:08:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2022-11-20 12:08:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:08:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:08:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:08:49,996 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:08:50,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:08:51,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:08:51,111 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:08:51,111 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:08:51,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:51 BoogieIcfgContainer [2022-11-20 12:08:51,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:08:51,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:08:51,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:08:51,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:08:51,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:08:46" (1/3) ... [2022-11-20 12:08:51,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153c5c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:51, skipping insertion in model container [2022-11-20 12:08:51,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:49" (2/3) ... [2022-11-20 12:08:51,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153c5c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:08:51, skipping insertion in model container [2022-11-20 12:08:51,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:08:51" (3/3) ... [2022-11-20 12:08:51,129 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2022-11-20 12:08:51,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:08:51,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:08:51,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:08:51,249 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;@68c66f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:08:51,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:08:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-20 12:08:51,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:08:51,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:51,281 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:51,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:51,292 INFO L85 PathProgramCache]: Analyzing trace with hash 928387541, now seen corresponding path program 1 times [2022-11-20 12:08:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:51,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628688945] [2022-11-20 12:08:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:08:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:08:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:08:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:08:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 12:08:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:08:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 12:08:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 12:08:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 12:08:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:08:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-20 12:08:52,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:52,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628688945] [2022-11-20 12:08:52,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628688945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:52,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:52,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:08:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104720230] [2022-11-20 12:08:52,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:52,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:08:52,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:52,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:08:52,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:52,472 INFO L87 Difference]: Start difference. First operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:53,596 INFO L93 Difference]: Finished difference Result 413 states and 633 transitions. [2022-11-20 12:08:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:08:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-20 12:08:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:53,612 INFO L225 Difference]: With dead ends: 413 [2022-11-20 12:08:53,612 INFO L226 Difference]: Without dead ends: 230 [2022-11-20 12:08:53,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:08:53,621 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 72 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:53,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 315 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 12:08:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-20 12:08:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2022-11-20 12:08:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 107 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-20 12:08:53,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2022-11-20 12:08:53,693 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 84 [2022-11-20 12:08:53,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:53,694 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2022-11-20 12:08:53,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:08:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2022-11-20 12:08:53,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:08:53,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:53,698 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:53,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:08:53,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:53,699 INFO L85 PathProgramCache]: Analyzing trace with hash -734960815, now seen corresponding path program 1 times [2022-11-20 12:08:53,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:53,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364037164] [2022-11-20 12:08:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:53,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:08:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:08:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:08:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:08:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 12:08:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 12:08:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:08:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 12:08:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 12:08:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:08:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 12:08:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 12:08:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 12:08:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-20 12:08:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:54,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364037164] [2022-11-20 12:08:54,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364037164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:08:54,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017317044] [2022-11-20 12:08:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:54,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:54,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:54,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:08:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:54,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:08:54,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:08:55,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:55,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017317044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:55,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:08:55,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-20 12:08:55,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814102564] [2022-11-20 12:08:55,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:55,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:08:55,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:55,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:08:55,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:08:55,076 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:08:55,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:55,417 INFO L93 Difference]: Finished difference Result 325 states and 446 transitions. [2022-11-20 12:08:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:08:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-11-20 12:08:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:55,421 INFO L225 Difference]: With dead ends: 325 [2022-11-20 12:08:55,421 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 12:08:55,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:08:55,424 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 245 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:55,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 706 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:08:55,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 12:08:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-20 12:08:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2022-11-20 12:08:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 250 transitions. [2022-11-20 12:08:55,448 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 250 transitions. Word has length 84 [2022-11-20 12:08:55,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:55,449 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 250 transitions. [2022-11-20 12:08:55,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:08:55,449 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2022-11-20 12:08:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 12:08:55,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:55,452 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:55,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 12:08:55,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:55,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:55,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:55,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1141222523, now seen corresponding path program 1 times [2022-11-20 12:08:55,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:55,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077135786] [2022-11-20 12:08:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:55,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:08:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599160155] [2022-11-20 12:08:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:55,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:55,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:55,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:08:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:56,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:08:56,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 12:08:56,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:56,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:08:56,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077135786] [2022-11-20 12:08:56,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:08:56,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599160155] [2022-11-20 12:08:56,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599160155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:56,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:56,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:08:56,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122098044] [2022-11-20 12:08:56,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:56,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:08:56,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:08:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:08:56,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:08:56,425 INFO L87 Difference]: Start difference. First operand 182 states and 250 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:08:56,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:56,994 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2022-11-20 12:08:56,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:08:56,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-11-20 12:08:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:56,997 INFO L225 Difference]: With dead ends: 317 [2022-11-20 12:08:56,997 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 12:08:56,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:08:56,998 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 265 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:56,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 934 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:08:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 12:08:57,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-20 12:08:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2022-11-20 12:08:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-11-20 12:08:57,024 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 99 [2022-11-20 12:08:57,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:57,024 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-11-20 12:08:57,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:08:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-11-20 12:08:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 12:08:57,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:57,027 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-11-20 12:08:57,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:08:57,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:57,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 232916013, now seen corresponding path program 2 times [2022-11-20 12:08:57,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:08:57,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015198491] [2022-11-20 12:08:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:08:57,339 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 12:08:57,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404838064] [2022-11-20 12:08:57,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:08:57,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:08:57,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:57,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:08:57,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:08:58,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:08:58,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:08:58,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 409 conjunts are in the unsatisfiable core [2022-11-20 12:08:58,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:59,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-20 12:09:04,238 INFO L217 Elim1Store]: Index analysis took 345 ms [2022-11-20 12:09:09,114 INFO L321 Elim1Store]: treesize reduction 712, result has 50.0 percent of original size [2022-11-20 12:09:09,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 179 select indices, 179 select index equivalence classes, 15753 disjoint index pairs (out of 15931 index pairs), introduced 179 new quantified variables, introduced 178 case distinctions, treesize of input 896 treesize of output 1250 [2022-11-20 12:09:37,762 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 178 dual juncts. [2022-11-20 12:09:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:09:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015198491] [2022-11-20 12:09:37,763 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 12:09:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404838064] [2022-11-20 12:09:37,763 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 12:09:37,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:37,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:09:37,973 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-20 12:09:37,977 INFO L158 Benchmark]: Toolchain (without parser) took 51644.02ms. Allocated memory was 132.1MB in the beginning and 625.0MB in the end (delta: 492.8MB). Free memory was 66.8MB in the beginning and 361.2MB in the end (delta: -294.3MB). Peak memory consumption was 366.4MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,977 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:09:37,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2863.00ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 66.7MB in the beginning and 58.6MB in the end (delta: 8.1MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.55ms. Allocated memory is still 184.5MB. Free memory was 58.6MB in the beginning and 137.5MB in the end (delta: -78.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,978 INFO L158 Benchmark]: Boogie Preprocessor took 109.99ms. Allocated memory is still 184.5MB. Free memory was 137.5MB in the beginning and 131.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,979 INFO L158 Benchmark]: RCFGBuilder took 1574.48ms. Allocated memory was 184.5MB in the beginning and 247.5MB in the end (delta: 62.9MB). Free memory was 131.2MB in the beginning and 161.7MB in the end (delta: -30.5MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,979 INFO L158 Benchmark]: TraceAbstraction took 46858.00ms. Allocated memory was 247.5MB in the beginning and 625.0MB in the end (delta: 377.5MB). Free memory was 160.6MB in the beginning and 361.2MB in the end (delta: -200.6MB). Peak memory consumption was 343.5MB. Max. memory is 16.1GB. [2022-11-20 12:09:37,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2863.00ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 66.7MB in the beginning and 58.6MB in the end (delta: 8.1MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.55ms. Allocated memory is still 184.5MB. Free memory was 58.6MB in the beginning and 137.5MB in the end (delta: -78.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.99ms. Allocated memory is still 184.5MB. Free memory was 137.5MB in the beginning and 131.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1574.48ms. Allocated memory was 184.5MB in the beginning and 247.5MB in the end (delta: 62.9MB). Free memory was 131.2MB in the beginning and 161.7MB in the end (delta: -30.5MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * TraceAbstraction took 46858.00ms. Allocated memory was 247.5MB in the beginning and 625.0MB in the end (delta: 377.5MB). Free memory was 160.6MB in the beginning and 361.2MB in the end (delta: -200.6MB). Peak memory consumption was 343.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 12:09:38,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- 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 12:09:40,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:09:40,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:09:40,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:09:40,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:09:40,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:09:40,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:09:40,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:09:40,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:09:40,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:09:40,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:09:40,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:09:40,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:09:40,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:09:40,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:09:40,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:09:40,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:09:40,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:09:40,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:09:40,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:09:40,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:09:40,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:09:40,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:09:40,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:09:40,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:09:40,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:09:40,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:09:40,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:09:40,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:09:40,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:09:40,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:09:40,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:09:40,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:09:40,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:09:40,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:09:40,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:09:40,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:09:40,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:09:40,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:09:40,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:09:40,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:09:40,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:09:40,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:09:40,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:09:40,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:09:40,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:09:40,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:09:40,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:09:40,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:09:40,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:09:40,797 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:09:40,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:09:40,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:09:40,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:09:40,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:09:40,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:09:40,799 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:09:40,800 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:09:40,800 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:09:40,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:09:40,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:09:40,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:09:40,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:09:40,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:09:40,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:09:40,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:09:40,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:09:40,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:09:40,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:09:40,803 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:09:40,803 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:09:40,803 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:09:40,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:09:40,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:09:40,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:09:40,804 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2022-11-20 12:09:41,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:09:41,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:09:41,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:09:41,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:09:41,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:09:41,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-20 12:09:44,417 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:09:44,986 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:09:44,990 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-20 12:09:45,032 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/381f12b68/70aa329a5fa04b9e8af96e975b485d37/FLAG897b1bb20 [2022-11-20 12:09:45,055 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/data/381f12b68/70aa329a5fa04b9e8af96e975b485d37 [2022-11-20 12:09:45,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:09:45,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:09:45,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:09:45,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:09:45,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:09:45,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:45" (1/1) ... [2022-11-20 12:09:45,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485f636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:45, skipping insertion in model container [2022-11-20 12:09:45,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:45" (1/1) ... [2022-11-20 12:09:45,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:09:45,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:09:45,519 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-20 12:09:45,527 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-20 12:09:46,444 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:09:46,515 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,516 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,516 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,517 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,518 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,531 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,536 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,537 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,539 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,541 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,545 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,547 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:46,950 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:09:46,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:09:46,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:09:46,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:09:46,956 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:09:46,956 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:09:46,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:09:46,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:09:46,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:09:46,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:09:47,119 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,126 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:09:47,242 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:09:47,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:09:47,332 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-20 12:09:47,335 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-20 12:09:47,402 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:09:47,428 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,443 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,443 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,444 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,445 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,452 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,461 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,462 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,464 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,465 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,466 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,469 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,470 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,527 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:09:47,528 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:09:47,528 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:09:47,529 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:09:47,530 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:09:47,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:09:47,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:09:47,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:09:47,535 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:09:47,537 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:09:47,598 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,603 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:09:47,706 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:09:47,733 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-20 12:09:47,734 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_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-20 12:09:47,779 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:09:47,797 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,798 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,799 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,799 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,800 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,808 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,809 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,813 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,814 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,816 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,816 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:09:47,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:09:47,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:09:47,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:09:47,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:09:47,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:09:47,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:09:47,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:09:47,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:09:47,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:09:47,904 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,908 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:09:47,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:09:48,222 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:09:48,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48 WrapperNode [2022-11-20 12:09:48,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:09:48,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:09:48,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:09:48,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:09:48,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,484 INFO L138 Inliner]: procedures = 711, calls = 1683, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 680 [2022-11-20 12:09:48,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:09:48,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:09:48,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:09:48,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:09:48,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:09:48,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:09:48,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:09:48,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:09:48,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (1/1) ... [2022-11-20 12:09:48,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:09:48,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:09:48,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:09:48,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:09:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-11-20 12:09:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-11-20 12:09:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:09:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 12:09:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 12:09:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 12:09:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 12:09:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 12:09:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 12:09:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:09:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:09:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:09:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 12:09:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 12:09:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:09:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:09:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:09:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:09:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:09:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:09:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:09:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 12:09:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 12:09:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:09:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-20 12:09:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-20 12:09:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:09:48,743 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 12:09:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 12:09:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-20 12:09:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-20 12:09:48,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:09:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:09:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:09:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:09:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:09:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:09:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:09:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 12:09:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 12:09:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 12:09:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 12:09:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-11-20 12:09:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-11-20 12:09:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2022-11-20 12:09:48,759 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2022-11-20 12:09:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:09:48,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 12:09:49,279 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:09:49,282 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:09:52,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:09:52,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:09:52,056 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:09:52,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:52 BoogieIcfgContainer [2022-11-20 12:09:52,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:09:52,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:09:52,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:09:52,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:09:52,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:09:45" (1/3) ... [2022-11-20 12:09:52,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2c2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:52, skipping insertion in model container [2022-11-20 12:09:52,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:48" (2/3) ... [2022-11-20 12:09:52,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2c2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:52, skipping insertion in model container [2022-11-20 12:09:52,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:52" (3/3) ... [2022-11-20 12:09:52,068 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2022-11-20 12:09:52,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:09:52,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:09:52,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:09:52,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e036153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:09:52,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:09:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-20 12:09:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:09:52,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:52,192 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:52,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:52,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 642443003, now seen corresponding path program 1 times [2022-11-20 12:09:52,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:52,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454153162] [2022-11-20 12:09:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:52,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:52,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:52,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:09:52,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:09:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:53,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:09:53,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-20 12:09:53,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:53,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:09:53,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454153162] [2022-11-20 12:09:53,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454153162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:53,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:53,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:09:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133877003] [2022-11-20 12:09:53,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:53,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:09:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:09:53,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:09:53,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:09:53,223 INFO L87 Difference]: Start difference. First operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:09:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:53,330 INFO L93 Difference]: Finished difference Result 361 states and 517 transitions. [2022-11-20 12:09:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:09:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-20 12:09:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:53,343 INFO L225 Difference]: With dead ends: 361 [2022-11-20 12:09:53,343 INFO L226 Difference]: Without dead ends: 179 [2022-11-20 12:09:53,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:09:53,352 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:53,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:09:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-20 12:09:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-20 12:09:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 106 states have internal predecessors, (125), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-11-20 12:09:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 238 transitions. [2022-11-20 12:09:53,425 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 238 transitions. Word has length 84 [2022-11-20 12:09:53,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:53,425 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 238 transitions. [2022-11-20 12:09:53,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:09:53,426 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 238 transitions. [2022-11-20 12:09:53,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:09:53,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:53,430 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:09:53,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:53,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:53,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1020905353, now seen corresponding path program 1 times [2022-11-20 12:09:53,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:53,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997072528] [2022-11-20 12:09:53,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:53,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:53,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:53,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:09:53,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:09:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:54,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:09:54,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-20 12:09:54,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:54,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:09:54,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997072528] [2022-11-20 12:09:54,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997072528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:54,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:54,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:09:54,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486866249] [2022-11-20 12:09:54,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:54,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:09:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:09:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:09:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:09:54,635 INFO L87 Difference]: Start difference. First operand 179 states and 238 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:09:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:55,292 INFO L93 Difference]: Finished difference Result 323 states and 444 transitions. [2022-11-20 12:09:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:09:55,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-11-20 12:09:55,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:55,299 INFO L225 Difference]: With dead ends: 323 [2022-11-20 12:09:55,299 INFO L226 Difference]: Without dead ends: 181 [2022-11-20 12:09:55,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 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 12:09:55,302 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 38 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:55,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 767 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:09:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-20 12:09:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-20 12:09:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2022-11-20 12:09:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2022-11-20 12:09:55,341 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 84 [2022-11-20 12:09:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:55,342 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2022-11-20 12:09:55,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:09:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2022-11-20 12:09:55,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 12:09:55,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:55,346 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:55,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:55,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:55,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:55,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash 327548161, now seen corresponding path program 1 times [2022-11-20 12:09:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:55,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078661918] [2022-11-20 12:09:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:55,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:55,578 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:09:55,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:09:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:56,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:09:56,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 12:09:56,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:56,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:09:56,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078661918] [2022-11-20 12:09:56,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078661918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:56,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:56,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:09:56,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955192250] [2022-11-20 12:09:56,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:56,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:09:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:09:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:09:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:09:56,864 INFO L87 Difference]: Start difference. First operand 181 states and 249 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:09:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:57,788 INFO L93 Difference]: Finished difference Result 315 states and 438 transitions. [2022-11-20 12:09:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:09:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-11-20 12:09:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:57,792 INFO L225 Difference]: With dead ends: 315 [2022-11-20 12:09:57,792 INFO L226 Difference]: Without dead ends: 181 [2022-11-20 12:09:57,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:09:57,793 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 80 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:57,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1082 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 12:09:57,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-20 12:09:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-20 12:09:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2022-11-20 12:09:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 246 transitions. [2022-11-20 12:09:57,817 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 246 transitions. Word has length 99 [2022-11-20 12:09:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:57,818 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 246 transitions. [2022-11-20 12:09:57,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:09:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 246 transitions. [2022-11-20 12:09:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 12:09:57,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:57,820 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-11-20 12:09:57,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:09:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:58,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:58,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -316276691, now seen corresponding path program 2 times [2022-11-20 12:09:58,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:58,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337613490] [2022-11-20 12:09:58,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:09:58,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:09:58,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:58,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:09:58,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:10:02,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:10:02,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:10:02,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:10:02,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 12:10:02,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:02,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:02,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337613490] [2022-11-20 12:10:02,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337613490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:02,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:02,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:10:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035681064] [2022-11-20 12:10:02,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:02,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:10:02,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:10:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:10:02,317 INFO L87 Difference]: Start difference. First operand 181 states and 246 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:10:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:03,637 INFO L93 Difference]: Finished difference Result 324 states and 448 transitions. [2022-11-20 12:10:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:10:03,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2022-11-20 12:10:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:03,641 INFO L225 Difference]: With dead ends: 324 [2022-11-20 12:10:03,641 INFO L226 Difference]: Without dead ends: 193 [2022-11-20 12:10:03,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:10:03,643 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 89 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:03,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1460 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 12:10:03,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-20 12:10:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-11-20 12:10:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2022-11-20 12:10:03,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 263 transitions. [2022-11-20 12:10:03,669 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 263 transitions. Word has length 114 [2022-11-20 12:10:03,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:03,670 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 263 transitions. [2022-11-20 12:10:03,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 12:10:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 263 transitions. [2022-11-20 12:10:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 12:10:03,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:03,673 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:03,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:10:03,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:03,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:03,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1013494811, now seen corresponding path program 1 times [2022-11-20 12:10:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978290143] [2022-11-20 12:10:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:03,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:03,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:03,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:10:03,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46e831c7-6d5d-4acb-8d2b-5a2b6c772294/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:11:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:33,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 233 conjunts are in the unsatisfiable core [2022-11-20 12:11:33,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:34,015 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 7 [2022-11-20 12:11:52,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:52,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 186 [2022-11-20 12:11:59,081 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_11| (_ BitVec 64)) (v_ArrVal_294 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11| v_ArrVal_294)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11|)))) is different from true [2022-11-20 12:12:01,456 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_295 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_295))) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_11| (_ BitVec 64)) (v_ArrVal_294 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11| v_ArrVal_294)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_11|))))) is different from true [2022-11-20 12:12:07,530 INFO L321 Elim1Store]: treesize reduction 63, result has 33.7 percent of original size [2022-11-20 12:12:07,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 63 [2022-11-20 12:12:07,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 109 [2022-11-20 12:12:20,666 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-20 12:12:20,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 45 [2022-11-20 12:12:32,256 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12|)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |c_#valid|))) is different from true [2022-11-20 12:12:34,777 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_301 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_12| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12|)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_12| v_ArrVal_301) |c_#valid|))) (exists ((v_ArrVal_302 (Array (_ BitVec 64) (_ BitVec 8)))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_302) |c_#memory_int|))) is different from true [2022-11-20 12:12:48,048 INFO L321 Elim1Store]: treesize reduction 155, result has 28.6 percent of original size [2022-11-20 12:12:48,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 57 treesize of output 103 [2022-11-20 12:12:48,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 111 [2022-11-20 12:13:14,174 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_307 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_13| (_ BitVec 64))) (and (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13| v_ArrVal_307) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13|)))) is different from true [2022-11-20 12:13:16,823 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_308 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_308))) (exists ((v_ArrVal_309 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_309) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_307 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_13| (_ BitVec 64))) (and (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13| v_ArrVal_307) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_13|))))) is different from true [2022-11-20 12:13:31,104 INFO L321 Elim1Store]: treesize reduction 155, result has 28.6 percent of original size [2022-11-20 12:13:31,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 57 treesize of output 103 [2022-11-20 12:13:31,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 12:13:31,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 111 [2022-11-20 12:15:24,191 WARN L233 SmtUtils]: Spent 13.19s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:17:35,668 WARN L233 SmtUtils]: Spent 1.00m on a formula simplification that was a NOOP. DAG size: 165 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:17:47,182 WARN L837 $PredicateComparison]: unable to prove that (and (= (_ bv1 8) c_aws_array_list_is_valid_~required_size_is_valid~0) (= |c_aws_array_list_is_valid_#in~list.offset| c_aws_array_list_is_valid_~list.offset) (let ((.cse2 (bvadd (_ bv32 64) c_aws_array_list_is_valid_~list.offset))) (let ((.cse0 (= (select (select |c_#memory_$Pointer$.offset| c_aws_array_list_is_valid_~list.base) .cse2) (_ bv0 64))) (.cse1 (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| c_aws_array_list_is_valid_~list.base) .cse2)))) (or (and (or (not .cse0) (not .cse1)) (not |c_aws_array_list_is_valid_#t~short133|)) (and .cse0 .cse1 |c_aws_array_list_is_valid_#t~short133|)))) (= |c_aws_array_list_is_valid_#in~list.base| c_aws_array_list_is_valid_~list.base) (let ((.cse6 (let ((.cse10 (select |c_old(#memory_int)| c_aws_array_list_is_valid_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse10 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv23 64))) (select .cse10 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv22 64)))) (select .cse10 (bvadd (_ bv21 64) c_aws_array_list_is_valid_~list.offset))) (select .cse10 (bvadd (_ bv20 64) c_aws_array_list_is_valid_~list.offset))) (select .cse10 (bvadd (_ bv19 64) c_aws_array_list_is_valid_~list.offset))) (select .cse10 (bvadd (_ bv18 64) c_aws_array_list_is_valid_~list.offset))) (select .cse10 (bvadd (_ bv17 64) c_aws_array_list_is_valid_~list.offset))) (select .cse10 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv16 64)))))) (.cse3 (let ((.cse9 (select |c_#memory_int| c_aws_array_list_is_valid_~list.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse9 (bvadd (_ bv15 64) c_aws_array_list_is_valid_~list.offset)) (select .cse9 (bvadd (_ bv14 64) c_aws_array_list_is_valid_~list.offset))) (select .cse9 (bvadd (_ bv13 64) c_aws_array_list_is_valid_~list.offset))) (select .cse9 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv12 64)))) (select .cse9 (bvadd c_aws_array_list_is_valid_~list.offset (_ bv11 64)))) (select .cse9 (bvadd (_ bv10 64) c_aws_array_list_is_valid_~list.offset))) (select .cse9 (bvadd (_ bv9 64) c_aws_array_list_is_valid_~list.offset))) (select .cse9 (bvadd (_ bv8 64) c_aws_array_list_is_valid_~list.offset)))))) (or (and (= (_ bv1 8) c_aws_array_list_is_valid_~current_size_is_valid~0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (v_ArrVal_316 (Array (_ BitVec 64) (_ BitVec 64))) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64)) (v_ArrVal_320 (Array (_ BitVec 64) (_ BitVec 64)))) (and (bvuge .cse3 (let ((.cse4 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse4 (_ bv7 64)) (select .cse4 (_ bv6 64))) (select .cse4 (_ bv5 64))) (select .cse4 (_ bv4 64))) (select .cse4 (_ bv3 64))) (select .cse4 (_ bv2 64))) (select .cse4 (_ bv1 64))) (select .cse4 (_ bv0 64))))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_316)) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_320)) (= (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse5 (bvmul .cse6 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse5)) (_ bv1 64) ((_ extract 15 8) .cse5)) (_ bv2 64) ((_ extract 23 16) .cse5)) (_ bv3 64) ((_ extract 31 24) .cse5)) (_ bv4 64) ((_ extract 39 32) .cse5)) (_ bv5 64) ((_ extract 47 40) .cse5)) (_ bv6 64) ((_ extract 55 48) .cse5)) (_ bv7 64) ((_ extract 63 56) .cse5)))) |c_#memory_int|)))) (and (= (_ bv0 8) c_aws_array_list_is_valid_~current_size_is_valid~0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| (_ BitVec 64)) (v_ArrVal_316 (Array (_ BitVec 64) (_ BitVec 64))) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64)) (v_ArrVal_320 (Array (_ BitVec 64) (_ BitVec 64)))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_316)) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_320)) (= (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse7 (bvmul .cse6 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) .cse7)) (_ bv1 64) ((_ extract 15 8) .cse7)) (_ bv2 64) ((_ extract 23 16) .cse7)) (_ bv3 64) ((_ extract 31 24) .cse7)) (_ bv4 64) ((_ extract 39 32) .cse7)) (_ bv5 64) ((_ extract 47 40) .cse7)) (_ bv6 64) ((_ extract 55 48) .cse7)) (_ bv7 64) ((_ extract 63 56) .cse7)))) |c_#memory_int|) (not (bvuge .cse3 (let ((.cse8 (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse8 (_ bv7 64)) (select .cse8 (_ bv6 64))) (select .cse8 (_ bv5 64))) (select .cse8 (_ bv4 64))) (select .cse8 (_ bv3 64))) (select .cse8 (_ bv2 64))) (select .cse8 (_ bv1 64))) (select .cse8 (_ bv0 64)))))))))))) is different from false [2022-11-20 12:21:16,558 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 190 DAG size of output: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:21:33,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 16 select indices, 16 select index equivalence classes, 278 disjoint index pairs (out of 120 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 2437 treesize of output 1951 [2022-11-20 12:21:34,189 INFO L217 Elim1Store]: Index analysis took 169 ms [2022-11-20 12:21:34,990 INFO L321 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2022-11-20 12:21:34,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 612 treesize of output 710 [2022-11-20 12:21:35,828 INFO L217 Elim1Store]: Index analysis took 210 ms [2022-11-20 12:21:36,850 INFO L321 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2022-11-20 12:21:36,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 600 treesize of output 698 [2022-11-20 12:21:37,785 INFO L217 Elim1Store]: Index analysis took 413 ms [2022-11-20 12:21:41,812 INFO L321 Elim1Store]: treesize reduction 18, result has 90.1 percent of original size [2022-11-20 12:21:41,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 602 treesize of output 750 [2022-11-20 12:22:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 38 proven. 59 refuted. 34 times theorem prover too weak. 13 trivial. 30 not checked. [2022-11-20 12:22:04,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:23:20,156 WARN L233 SmtUtils]: Spent 48.05s on a formula simplification that was a NOOP. DAG size: 283 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 12:23:27,596 WARN L233 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 12:23:33,737 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 243 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)