./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R --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 ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- 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-38b53e6 [2022-11-25 18:24:34,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:24:34,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:24:34,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:24:34,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:24:34,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:24:34,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:24:34,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:24:34,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:24:34,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:24:34,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:24:34,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:24:34,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:24:34,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:24:34,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:24:34,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:24:34,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:24:34,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:24:34,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:24:34,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:24:34,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:24:34,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:24:34,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:24:34,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:24:34,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:24:34,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:24:34,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:24:34,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:24:34,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:24:34,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:24:34,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:24:34,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:24:34,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:24:34,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:24:34,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:24:34,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:24:34,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:24:34,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:24:34,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:24:34,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:24:34,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:24:34,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 18:24:34,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:24:34,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:24:34,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:24:34,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:24:34,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:24:34,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:24:34,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:24:34,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:24:34,909 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:24:34,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:24:34,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:24:34,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:24:34,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:24:34,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:24:34,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:24:34,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:24:34,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:24:34,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:24:34,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:24:34,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:24:34,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:24:34,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:34,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:24:34,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:24:34,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:24:34,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:24:34,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:24:34,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:24:34,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:24:34,917 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:24:34,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:24:34,917 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2022-11-25 18:24:35,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:24:35,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:24:35,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:24:35,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:24:35,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:24:35,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2022-11-25 18:24:38,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:24:39,724 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:24:39,724 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2022-11-25 18:24:39,771 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/data/80483617e/c69dea1034f344ce8f718eefdfe3531f/FLAGfcf9f1ba9 [2022-11-25 18:24:39,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/data/80483617e/c69dea1034f344ce8f718eefdfe3531f [2022-11-25 18:24:39,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:24:39,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:24:39,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:39,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:24:39,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:24:39,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:39" (1/1) ... [2022-11-25 18:24:39,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa246d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:39, skipping insertion in model container [2022-11-25 18:24:39,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:39" (1/1) ... [2022-11-25 18:24:39,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:24:39,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:24:40,327 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2022-11-25 18:24:40,342 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2022-11-25 18:24:41,918 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,919 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,920 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,921 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,922 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,940 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,941 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,945 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,948 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,950 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,951 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:41,952 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:42,099 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:42,100 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:42,101 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:42,108 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 18:24:42,112 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 18:24:42,113 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 18:24:42,661 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 18:24:42,662 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 18:24:42,664 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 18:24:42,666 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 18:24:42,667 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 18:24:42,669 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 18:24:42,670 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 18:24:42,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 18:24:42,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 18:24:42,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 18:24:42,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 18:24:42,931 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 18:24:43,063 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:24:43,364 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,365 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,404 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,412 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,422 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,423 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,449 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,452 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:43,577 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:24:43,610 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2022-11-25 18:24:43,611 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_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2022-11-25 18:24:43,675 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,676 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,676 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,677 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,678 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,687 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,688 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,691 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,699 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,701 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,708 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:43,709 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:43,709 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 18:24:43,713 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 18:24:43,716 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 18:24:43,717 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 18:24:43,804 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 18:24:43,807 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 18:24:43,808 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 18:24:43,810 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 18:24:43,812 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 18:24:43,813 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 18:24:43,814 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 18:24:43,816 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 18:24:43,816 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 18:24:43,817 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 18:24:43,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 18:24:43,855 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 18:24:43,892 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 18:24:43,984 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,985 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,994 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,995 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,998 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:43,999 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,016 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,017 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,018 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,019 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,019 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,021 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,021 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 18:24:44,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:44,463 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:24:44,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44 WrapperNode [2022-11-25 18:24:44,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:44,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:44,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:24:44,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:24:44,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,727 INFO L138 Inliner]: procedures = 774, calls = 2431, calls flagged for inlining = 69, calls inlined = 12, statements flattened = 621 [2022-11-25 18:24:44,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:44,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:24:44,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:24:44,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:24:44,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:24:44,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:24:44,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:24:44,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:24:44,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:44,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:44,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:24:44,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:24:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 18:24:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:24:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 18:24:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 18:24:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 18:24:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 18:24:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-25 18:24:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-25 18:24:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:24:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:24:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 18:24:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:24:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:24:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 18:24:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 18:24:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 18:24:44,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 18:24:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 18:24:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 18:24:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:24:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-25 18:24:44,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-25 18:24:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 18:24:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 18:24:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 18:24:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:24:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-25 18:24:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-25 18:24:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:24:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-25 18:24:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-25 18:24:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 18:24:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 18:24:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-25 18:24:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-25 18:24:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 18:24:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 18:24:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 18:24:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-25 18:24:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-25 18:24:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:24:45,487 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:24:45,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:24:46,736 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:24:46,756 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:24:46,756 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:24:46,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:46 BoogieIcfgContainer [2022-11-25 18:24:46,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:24:46,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:24:46,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:24:46,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:24:46,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:24:39" (1/3) ... [2022-11-25 18:24:46,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f48237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:46, skipping insertion in model container [2022-11-25 18:24:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (2/3) ... [2022-11-25 18:24:46,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f48237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:46, skipping insertion in model container [2022-11-25 18:24:46,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:46" (3/3) ... [2022-11-25 18:24:46,775 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2022-11-25 18:24:46,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:24:46,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:24:46,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:24:46,908 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;@618c84eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:24:46,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:24:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 79 states have internal predecessors, (92), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-25 18:24:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 18:24:46,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:46,945 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:46,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:46,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1851529921, now seen corresponding path program 1 times [2022-11-25 18:24:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:46,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633441641] [2022-11-25 18:24:46,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:46,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:47,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:47,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633441641] [2022-11-25 18:24:47,790 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 18:24:47,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325352825] [2022-11-25 18:24:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:47,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:47,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:47,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:24:47,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:24:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:48,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:24:48,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:24:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-25 18:24:48,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:24:48,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325352825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:48,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:48,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:24:48,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479506143] [2022-11-25 18:24:48,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:48,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:24:48,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:48,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:24:48,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:24:48,819 INFO L87 Difference]: Start difference. First operand has 126 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 79 states have internal predecessors, (92), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 18:24:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:48,867 INFO L93 Difference]: Finished difference Result 244 states and 318 transitions. [2022-11-25 18:24:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:24:48,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 139 [2022-11-25 18:24:48,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:48,881 INFO L225 Difference]: With dead ends: 244 [2022-11-25 18:24:48,881 INFO L226 Difference]: Without dead ends: 120 [2022-11-25 18:24:48,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:24:48,890 INFO L413 NwaCegarLoop]: 152 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, 152 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 [2022-11-25 18:24:48,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:24:48,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-25 18:24:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-25 18:24:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-25 18:24:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2022-11-25 18:24:49,005 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 139 [2022-11-25 18:24:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:49,006 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2022-11-25 18:24:49,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 18:24:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2022-11-25 18:24:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 18:24:49,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:49,017 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:49,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:24:49,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 18:24:49,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1946732163, now seen corresponding path program 1 times [2022-11-25 18:24:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:49,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456843066] [2022-11-25 18:24:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:49,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:49,363 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:24:49,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556592808] [2022-11-25 18:24:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:49,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:24:49,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:24:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:50,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:24:50,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:24:50,256 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-11-25 18:24:50,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:24:50,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:50,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456843066] [2022-11-25 18:24:50,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:24:50,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556592808] [2022-11-25 18:24:50,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556592808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:50,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:50,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:24:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622909451] [2022-11-25 18:24:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:50,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:24:50,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:24:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:24:50,269 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 18:24:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:50,359 INFO L93 Difference]: Finished difference Result 233 states and 284 transitions. [2022-11-25 18:24:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:24:50,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2022-11-25 18:24:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:50,366 INFO L225 Difference]: With dead ends: 233 [2022-11-25 18:24:50,366 INFO L226 Difference]: Without dead ends: 125 [2022-11-25 18:24:50,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:24:50,369 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:50,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 567 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:24:50,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-25 18:24:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-25 18:24:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.12987012987013) internal successors, (87), 78 states have internal predecessors, (87), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2022-11-25 18:24:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 151 transitions. [2022-11-25 18:24:50,386 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 151 transitions. Word has length 145 [2022-11-25 18:24:50,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:50,388 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 151 transitions. [2022-11-25 18:24:50,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 18:24:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2022-11-25 18:24:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 18:24:50,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:50,392 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:50,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:24:50,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:50,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:50,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1359183933, now seen corresponding path program 1 times [2022-11-25 18:24:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:50,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014658096] [2022-11-25 18:24:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:50,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:24:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:24:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:24:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:24:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:24:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:24:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:24:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:24:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:24:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:24:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:24:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 18:24:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 18:24:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:24:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:24:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:24:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 18:24:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 18:24:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 18:24:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 18:24:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 18:24:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 18:24:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 18:24:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 18:24:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-25 18:24:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:53,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014658096] [2022-11-25 18:24:53,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014658096] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:24:53,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463441618] [2022-11-25 18:24:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:53,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:53,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:24:53,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:24:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:54,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2459 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 18:24:54,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:24:54,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:24:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 18:24:55,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:24:55,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463441618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:55,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:24:55,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2022-11-25 18:24:55,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159162281] [2022-11-25 18:24:55,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:55,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:24:55,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:24:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:24:55,394 INFO L87 Difference]: Start difference. First operand 125 states and 151 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 18:24:58,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 18:25:00,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:02,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:04,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:06,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:09,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:11,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:13,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:13,177 INFO L93 Difference]: Finished difference Result 299 states and 361 transitions. [2022-11-25 18:25:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:25:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 157 [2022-11-25 18:25:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:13,182 INFO L225 Difference]: With dead ends: 299 [2022-11-25 18:25:13,182 INFO L226 Difference]: Without dead ends: 198 [2022-11-25 18:25:13,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2022-11-25 18:25:13,185 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 135 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 42 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:13,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 768 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 357 Invalid, 8 Unknown, 0 Unchecked, 17.4s Time] [2022-11-25 18:25:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-25 18:25:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 192. [2022-11-25 18:25:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 120 states have (on average 1.1416666666666666) internal successors, (137), 123 states have internal predecessors, (137), 46 states have call successors, (46), 22 states have call predecessors, (46), 25 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2022-11-25 18:25:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 233 transitions. [2022-11-25 18:25:13,215 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 233 transitions. Word has length 157 [2022-11-25 18:25:13,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:13,216 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 233 transitions. [2022-11-25 18:25:13,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 9 states have internal predecessors, (76), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 18:25:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 233 transitions. [2022-11-25 18:25:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 18:25:13,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:13,220 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:13,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 18:25:13,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:13,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:25:13,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1330683643, now seen corresponding path program 1 times [2022-11-25 18:25:13,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:13,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053366608] [2022-11-25 18:25:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:13,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:25:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:25:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:25:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:25:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:25:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:25:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:25:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:25:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 18:25:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 18:25:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 18:25:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 18:25:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 18:25:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 18:25:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 18:25:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 18:25:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 18:25:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 18:25:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-25 18:25:14,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:14,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053366608] [2022-11-25 18:25:14,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053366608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:25:14,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573903721] [2022-11-25 18:25:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:14,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:14,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:14,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:25:14,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:25:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:15,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2454 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:25:15,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:25:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 18:25:15,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:25:15,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573903721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:15,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:25:15,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2022-11-25 18:25:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283259778] [2022-11-25 18:25:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:25:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:15,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:25:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:25:15,684 INFO L87 Difference]: Start difference. First operand 192 states and 233 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 18:25:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:15,961 INFO L93 Difference]: Finished difference Result 363 states and 441 transitions. [2022-11-25 18:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:25:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 157 [2022-11-25 18:25:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:15,965 INFO L225 Difference]: With dead ends: 363 [2022-11-25 18:25:15,965 INFO L226 Difference]: Without dead ends: 204 [2022-11-25 18:25:15,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:25:15,968 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 143 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:15,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 329 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 18:25:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-25 18:25:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 194. [2022-11-25 18:25:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 121 states have (on average 1.140495867768595) internal successors, (138), 124 states have internal predecessors, (138), 47 states have call successors, (47), 22 states have call predecessors, (47), 25 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2022-11-25 18:25:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 236 transitions. [2022-11-25 18:25:16,025 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 236 transitions. Word has length 157 [2022-11-25 18:25:16,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:16,026 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 236 transitions. [2022-11-25 18:25:16,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 18:25:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 236 transitions. [2022-11-25 18:25:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-25 18:25:16,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:16,034 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:16,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:25:16,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:16,245 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:25:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -539435900, now seen corresponding path program 1 times [2022-11-25 18:25:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:16,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129181484] [2022-11-25 18:25:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:25:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:25:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:25:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:25:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:25:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:25:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:25:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:25:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:25:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 18:25:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 18:25:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:25:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 18:25:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 18:25:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 18:25:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 18:25:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 18:25:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 18:25:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-25 18:25:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-25 18:25:17,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:17,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129181484] [2022-11-25 18:25:17,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129181484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:25:17,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801814709] [2022-11-25 18:25:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:17,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:17,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:17,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:25:17,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:25:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:18,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 18:25:18,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:25:20,934 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-25 18:25:29,027 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:25:37,108 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:25:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-25 18:25:37,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:25:37,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801814709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:37,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:25:37,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-11-25 18:25:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645669244] [2022-11-25 18:25:37,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:37,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:25:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:37,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:25:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=202, Unknown=3, NotChecked=28, Total=272 [2022-11-25 18:25:37,145 INFO L87 Difference]: Start difference. First operand 194 states and 236 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 18:25:39,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:41,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:25:47,755 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:25:48,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:48,068 INFO L93 Difference]: Finished difference Result 378 states and 461 transitions. [2022-11-25 18:25:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:25:48,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 163 [2022-11-25 18:25:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:48,071 INFO L225 Difference]: With dead ends: 378 [2022-11-25 18:25:48,072 INFO L226 Difference]: Without dead ends: 213 [2022-11-25 18:25:48,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=67, Invalid=314, Unknown=3, NotChecked=36, Total=420 [2022-11-25 18:25:48,074 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 12 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:48,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 775 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 2 Unknown, 158 Unchecked, 4.6s Time] [2022-11-25 18:25:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-11-25 18:25:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 209. [2022-11-25 18:25:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 131 states have (on average 1.1374045801526718) internal successors, (149), 135 states have internal predecessors, (149), 50 states have call successors, (50), 24 states have call predecessors, (50), 27 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2022-11-25 18:25:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 253 transitions. [2022-11-25 18:25:48,103 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 253 transitions. Word has length 163 [2022-11-25 18:25:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:48,104 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 253 transitions. [2022-11-25 18:25:48,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 18:25:48,105 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 253 transitions. [2022-11-25 18:25:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-25 18:25:48,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:48,108 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:48,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:25:48,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:48,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:25:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -971010897, now seen corresponding path program 1 times [2022-11-25 18:25:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:48,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888343720] [2022-11-25 18:25:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:25:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:25:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:25:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:25:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:25:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:25:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:25:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:25:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:25:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:25:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 18:25:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 18:25:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:25:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:25:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 18:25:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 18:25:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 18:25:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 18:25:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 18:25:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 18:25:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:51,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 18:25:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 18:25:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-25 18:25:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:51,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888343720] [2022-11-25 18:25:51,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888343720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:25:51,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420758285] [2022-11-25 18:25:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:51,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:51,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:51,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:25:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 18:25:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:51,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 2513 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-25 18:25:51,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:25:52,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:25:53,467 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 18:25:53,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-25 18:25:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-25 18:25:53,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:25:53,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420758285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:53,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:25:53,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 26 [2022-11-25 18:25:53,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697505894] [2022-11-25 18:25:53,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:53,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 18:25:53,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:53,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 18:25:53,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:25:53,986 INFO L87 Difference]: Start difference. First operand 209 states and 253 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-25 18:25:56,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 18:25:58,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:00,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:03,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:06,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:08,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:10,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:12,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:15,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:15,550 INFO L93 Difference]: Finished difference Result 328 states and 391 transitions. [2022-11-25 18:26:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:26:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) Word has length 168 [2022-11-25 18:26:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:15,557 INFO L225 Difference]: With dead ends: 328 [2022-11-25 18:26:15,557 INFO L226 Difference]: Without dead ends: 271 [2022-11-25 18:26:15,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 194 SyntacticMatches, 16 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 18:26:15,560 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 174 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 128 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:15,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 801 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1273 Invalid, 9 Unknown, 0 Unchecked, 21.1s Time] [2022-11-25 18:26:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-25 18:26:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 265. [2022-11-25 18:26:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 168 states have (on average 1.1428571428571428) internal successors, (192), 176 states have internal predecessors, (192), 60 states have call successors, (60), 30 states have call predecessors, (60), 36 states have return successors, (67), 58 states have call predecessors, (67), 58 states have call successors, (67) [2022-11-25 18:26:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2022-11-25 18:26:15,606 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 168 [2022-11-25 18:26:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:15,608 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2022-11-25 18:26:15,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 8 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (27), 9 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-25 18:26:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2022-11-25 18:26:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-25 18:26:15,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:15,615 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:15,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:26:15,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 18:26:15,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -662438033, now seen corresponding path program 1 times [2022-11-25 18:26:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:15,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870847372] [2022-11-25 18:26:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:26:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:26:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:26:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:26:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:26:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:26:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:26:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:26:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 18:26:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 18:26:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 18:26:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 18:26:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 18:26:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 18:26:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:16,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 18:26:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 18:26:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 18:26:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 18:26:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-25 18:26:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:17,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870847372] [2022-11-25 18:26:17,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870847372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:26:17,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376294589] [2022-11-25 18:26:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:17,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:17,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:17,144 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:17,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 18:26:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:17,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:26:17,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-25 18:26:18,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:18,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376294589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:18,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:26:18,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-11-25 18:26:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532578895] [2022-11-25 18:26:18,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:18,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:26:18,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:26:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-25 18:26:18,041 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-25 18:26:18,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:18,344 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2022-11-25 18:26:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:26:18,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 168 [2022-11-25 18:26:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:18,348 INFO L225 Difference]: With dead ends: 385 [2022-11-25 18:26:18,348 INFO L226 Difference]: Without dead ends: 260 [2022-11-25 18:26:18,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:26:18,350 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 147 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:18,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 420 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 18:26:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-11-25 18:26:18,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2022-11-25 18:26:18,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 162 states have (on average 1.1296296296296295) internal successors, (183), 169 states have internal predecessors, (183), 58 states have call successors, (58), 29 states have call predecessors, (58), 35 states have return successors, (66), 57 states have call predecessors, (66), 56 states have call successors, (66) [2022-11-25 18:26:18,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 307 transitions. [2022-11-25 18:26:18,380 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 307 transitions. Word has length 168 [2022-11-25 18:26:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:18,381 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 307 transitions. [2022-11-25 18:26:18,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-25 18:26:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 307 transitions. [2022-11-25 18:26:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-25 18:26:18,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:18,385 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:18,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-25 18:26:18,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 18:26:18,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:18,596 INFO L85 PathProgramCache]: Analyzing trace with hash -906945363, now seen corresponding path program 2 times [2022-11-25 18:26:18,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:18,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342405064] [2022-11-25 18:26:18,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:18,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:26:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:26:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:26:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:26:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:26:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:26:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:26:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:26:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 18:26:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 18:26:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 18:26:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 18:26:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 18:26:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 18:26:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 18:26:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:26:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 18:26:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 18:26:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 18:26:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-11-25 18:26:20,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:20,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342405064] [2022-11-25 18:26:20,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342405064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:20,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:20,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:26:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291864640] [2022-11-25 18:26:20,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:20,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:26:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:20,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:26:20,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:26:20,005 INFO L87 Difference]: Start difference. First operand 256 states and 307 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 18:26:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:20,920 INFO L93 Difference]: Finished difference Result 349 states and 416 transitions. [2022-11-25 18:26:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:26:20,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 179 [2022-11-25 18:26:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:20,924 INFO L225 Difference]: With dead ends: 349 [2022-11-25 18:26:20,924 INFO L226 Difference]: Without dead ends: 238 [2022-11-25 18:26:20,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:26:20,927 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 172 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:20,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 406 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:26:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-25 18:26:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2022-11-25 18:26:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 147 states have (on average 1.1020408163265305) internal successors, (162), 152 states have internal predecessors, (162), 54 states have call successors, (54), 27 states have call predecessors, (54), 32 states have return successors, (60), 54 states have call predecessors, (60), 52 states have call successors, (60) [2022-11-25 18:26:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 276 transitions. [2022-11-25 18:26:20,976 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 276 transitions. Word has length 179 [2022-11-25 18:26:20,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:20,980 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 276 transitions. [2022-11-25 18:26:20,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 18:26:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 276 transitions. [2022-11-25 18:26:20,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 18:26:20,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:20,985 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:20,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:26:20,985 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:20,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:20,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2005475441, now seen corresponding path program 1 times [2022-11-25 18:26:20,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:20,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748709336] [2022-11-25 18:26:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:20,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 18:26:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:26:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:26:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 18:26:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 18:26:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 18:26:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 18:26:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:26:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 18:26:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 18:26:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:26:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 18:26:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 18:26:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 18:26:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 18:26:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 18:26:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 18:26:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 18:26:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:26:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 18:26:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:25,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 18:26:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 18:26:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-25 18:26:25,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:25,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748709336] [2022-11-25 18:26:25,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748709336] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:26:25,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684436076] [2022-11-25 18:26:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:25,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:25,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:25,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:25,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 18:26:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:26,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 2586 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-25 18:26:26,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-25 18:26:26,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:26,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684436076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:26,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:26:26,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2022-11-25 18:26:26,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973498604] [2022-11-25 18:26:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:26,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:26:26,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:26,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:26:26,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:26:26,450 INFO L87 Difference]: Start difference. First operand 234 states and 276 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-11-25 18:26:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:26,756 INFO L93 Difference]: Finished difference Result 460 states and 541 transitions. [2022-11-25 18:26:26,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:26:26,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 180 [2022-11-25 18:26:26,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:26,759 INFO L225 Difference]: With dead ends: 460 [2022-11-25 18:26:26,759 INFO L226 Difference]: Without dead ends: 238 [2022-11-25 18:26:26,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-11-25 18:26:26,761 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 21 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:26,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 675 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 18:26:26,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-25 18:26:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-11-25 18:26:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 149 states have (on average 1.1006711409395973) internal successors, (164), 156 states have internal predecessors, (164), 54 states have call successors, (54), 27 states have call predecessors, (54), 34 states have return successors, (62), 54 states have call predecessors, (62), 52 states have call successors, (62) [2022-11-25 18:26:26,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 280 transitions. [2022-11-25 18:26:26,799 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 280 transitions. Word has length 180 [2022-11-25 18:26:26,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:26,799 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 280 transitions. [2022-11-25 18:26:26,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-11-25 18:26:26,800 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 280 transitions. [2022-11-25 18:26:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 18:26:26,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:26,802 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:26,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:26:27,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:27,015 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1874383290, now seen corresponding path program 1 times [2022-11-25 18:26:27,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:27,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425830451] [2022-11-25 18:26:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:27,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:27,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:26:27,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758696590] [2022-11-25 18:26:27,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:27,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:27,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:27,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:27,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 18:26:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:27,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-25 18:26:27,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:28,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:26:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 18:26:28,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:28,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:28,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425830451] [2022-11-25 18:26:28,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:26:28,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758696590] [2022-11-25 18:26:28,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758696590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:28,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:28,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:26:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181667771] [2022-11-25 18:26:28,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:28,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:26:28,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:26:28,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:26:28,642 INFO L87 Difference]: Start difference. First operand 238 states and 280 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 18:26:31,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 18:26:33,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:35,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:37,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:39,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:42,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:44,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:46,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:48,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:50,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:52,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:54,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:56,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:26:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:56,909 INFO L93 Difference]: Finished difference Result 371 states and 434 transitions. [2022-11-25 18:26:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:26:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) Word has length 186 [2022-11-25 18:26:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:56,912 INFO L225 Difference]: With dead ends: 371 [2022-11-25 18:26:56,912 INFO L226 Difference]: Without dead ends: 238 [2022-11-25 18:26:56,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 173 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:26:56,914 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 136 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 102 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:56,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 671 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 989 Invalid, 13 Unknown, 0 Unchecked, 28.0s Time] [2022-11-25 18:26:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-25 18:26:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2022-11-25 18:26:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 148 states have (on average 1.087837837837838) internal successors, (161), 154 states have internal predecessors, (161), 54 states have call successors, (54), 27 states have call predecessors, (54), 33 states have return successors, (61), 54 states have call predecessors, (61), 52 states have call successors, (61) [2022-11-25 18:26:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 276 transitions. [2022-11-25 18:26:57,016 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 276 transitions. Word has length 186 [2022-11-25 18:26:57,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:57,020 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 276 transitions. [2022-11-25 18:26:57,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 18:26:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 276 transitions. [2022-11-25 18:26:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 18:26:57,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:57,024 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:57,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:26:57,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 18:26:57,239 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1985732096, now seen corresponding path program 1 times [2022-11-25 18:26:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:57,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917700066] [2022-11-25 18:26:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:57,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:57,343 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:26:57,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717968940] [2022-11-25 18:26:57,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:57,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:57,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:57,346 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:57,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 18:26:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:58,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:26:58,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-25 18:26:58,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:58,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:58,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917700066] [2022-11-25 18:26:58,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:26:58,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717968940] [2022-11-25 18:26:58,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717968940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:58,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:58,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:26:58,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990181469] [2022-11-25 18:26:58,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:58,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:26:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:58,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:26:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:26:58,213 INFO L87 Difference]: Start difference. First operand 236 states and 276 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 18:26:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:58,276 INFO L93 Difference]: Finished difference Result 383 states and 444 transitions. [2022-11-25 18:26:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:26:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) Word has length 186 [2022-11-25 18:26:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:58,278 INFO L225 Difference]: With dead ends: 383 [2022-11-25 18:26:58,279 INFO L226 Difference]: Without dead ends: 148 [2022-11-25 18:26:58,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:26:58,281 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 2 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:58,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 848 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:58,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-25 18:26:58,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2022-11-25 18:26:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 89 states have (on average 1.0674157303370786) internal successors, (95), 91 states have internal predecessors, (95), 33 states have call successors, (33), 18 states have call predecessors, (33), 19 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2022-11-25 18:26:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2022-11-25 18:26:58,301 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 186 [2022-11-25 18:26:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:58,302 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2022-11-25 18:26:58,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 4 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 18:26:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2022-11-25 18:26:58,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 18:26:58,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:58,305 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:58,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:26:58,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:58,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:58,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1250367336, now seen corresponding path program 1 times [2022-11-25 18:26:58,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610574307] [2022-11-25 18:26:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:58,598 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:26:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56788336] [2022-11-25 18:26:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:58,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:58,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:58,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:58,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 18:26:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:59,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:26:59,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:26:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-25 18:26:59,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:26:59,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:59,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610574307] [2022-11-25 18:26:59,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:26:59,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56788336] [2022-11-25 18:26:59,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56788336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:59,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:59,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:26:59,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147064475] [2022-11-25 18:26:59,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:59,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:26:59,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:26:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:26:59,537 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 18:26:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:59,586 INFO L93 Difference]: Finished difference Result 207 states and 238 transitions. [2022-11-25 18:26:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:26:59,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 180 [2022-11-25 18:26:59,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:59,588 INFO L225 Difference]: With dead ends: 207 [2022-11-25 18:26:59,589 INFO L226 Difference]: Without dead ends: 147 [2022-11-25 18:26:59,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:26:59,590 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 2 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:59,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 539 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-25 18:26:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-11-25 18:26:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 93 states have (on average 1.064516129032258) internal successors, (99), 95 states have internal predecessors, (99), 33 states have call successors, (33), 18 states have call predecessors, (33), 20 states have return successors, (34), 33 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-25 18:26:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 166 transitions. [2022-11-25 18:26:59,611 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 166 transitions. Word has length 180 [2022-11-25 18:26:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:59,612 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 166 transitions. [2022-11-25 18:26:59,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 18:26:59,613 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 166 transitions. [2022-11-25 18:26:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 18:26:59,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:59,615 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:59,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:26:59,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 18:26:59,832 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:26:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:59,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1771608484, now seen corresponding path program 1 times [2022-11-25 18:26:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512287910] [2022-11-25 18:26:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:59,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:26:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913727815] [2022-11-25 18:26:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:59,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:26:59,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:59,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:26:59,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 18:27:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:00,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-25 18:27:00,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:27:00,847 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:27:00,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-25 18:27:01,219 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:27:01,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:27:01,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:27:01,907 INFO L321 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2022-11-25 18:27:01,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 88 treesize of output 114 [2022-11-25 18:27:02,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:27:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:27:02,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:27:02,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:27:02,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:27:03,018 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-25 18:27:03,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 30 [2022-11-25 18:27:03,268 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1799 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1799) |c_#memory_$Pointer$.base|)) is different from true [2022-11-25 18:27:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:27:03,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-25 18:27:03,554 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:27:03,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-25 18:27:05,654 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_harness_~#from~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_harness_~#from~0#1.base_BEFORE_CALL_66|) 0))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_move_harness_~#from~0#1.base_BEFORE_CALL_66|) (not (= .cse0 0))))) is different from true [2022-11-25 18:27:07,861 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_10| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_10|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_10|)))) is different from true [2022-11-25 18:27:09,984 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_11| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_11|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_11|) (not (= .cse0 0))))) is different from true [2022-11-25 18:27:12,111 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_12| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_12|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_12|)))) is different from true [2022-11-25 18:27:14,234 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_13| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_13|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_13|) (not (= .cse0 0))))) is different from true [2022-11-25 18:27:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 71 proven. 54 refuted. 2 times theorem prover too weak. 12 trivial. 92 not checked. [2022-11-25 18:27:16,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:27:23,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:23,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512287910] [2022-11-25 18:27:23,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:27:23,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913727815] [2022-11-25 18:27:23,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913727815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:27:23,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:27:23,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-25 18:27:23,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262169066] [2022-11-25 18:27:23,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 18:27:23,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-25 18:27:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-25 18:27:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=949, Unknown=23, NotChecked=402, Total=1482 [2022-11-25 18:27:23,890 INFO L87 Difference]: Start difference. First operand 147 states and 166 transitions. Second operand has 32 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 14 states have call successors, (31), 12 states have call predecessors, (31), 15 states have return successors, (30), 15 states have call predecessors, (30), 14 states have call successors, (30) [2022-11-25 18:27:26,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:27:53,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:27:55,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:28:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:08,300 INFO L93 Difference]: Finished difference Result 255 states and 293 transitions. [2022-11-25 18:28:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-25 18:28:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 14 states have call successors, (31), 12 states have call predecessors, (31), 15 states have return successors, (30), 15 states have call predecessors, (30), 14 states have call successors, (30) Word has length 186 [2022-11-25 18:28:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:08,303 INFO L225 Difference]: With dead ends: 255 [2022-11-25 18:28:08,303 INFO L226 Difference]: Without dead ends: 207 [2022-11-25 18:28:08,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 192 SyntacticMatches, 23 SemanticMatches, 66 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=401, Invalid=3363, Unknown=42, NotChecked=750, Total=4556 [2022-11-25 18:28:08,305 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 276 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 221 mSolverCounterUnsat, 65 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 4164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 65 IncrementalHoareTripleChecker+Unknown, 1347 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:08,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 774 Invalid, 4164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2531 Invalid, 65 Unknown, 1347 Unchecked, 13.7s Time] [2022-11-25 18:28:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-25 18:28:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2022-11-25 18:28:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 120 states have (on average 1.0583333333333333) internal successors, (127), 123 states have internal predecessors, (127), 42 states have call successors, (42), 23 states have call predecessors, (42), 26 states have return successors, (45), 42 states have call predecessors, (45), 41 states have call successors, (45) [2022-11-25 18:28:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 214 transitions. [2022-11-25 18:28:08,337 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 214 transitions. Word has length 186 [2022-11-25 18:28:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:08,338 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 214 transitions. [2022-11-25 18:28:08,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 14 states have call successors, (31), 12 states have call predecessors, (31), 15 states have return successors, (30), 15 states have call predecessors, (30), 14 states have call successors, (30) [2022-11-25 18:28:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 214 transitions. [2022-11-25 18:28:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 18:28:08,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:08,340 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:08,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:28:08,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 18:28:08,558 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:28:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1877903641, now seen corresponding path program 1 times [2022-11-25 18:28:08,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:08,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388945327] [2022-11-25 18:28:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:08,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:08,630 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:28:08,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439295979] [2022-11-25 18:28:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:28:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:28:08,632 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:28:08,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 18:28:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:09,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-25 18:28:09,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:28:09,438 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:28:09,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-25 18:28:09,842 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:28:09,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:28:09,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:28:10,498 INFO L321 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2022-11-25 18:28:10,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 142 treesize of output 166 [2022-11-25 18:28:10,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:28:10,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:28:10,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:28:10,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:28:10,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:28:11,573 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-25 18:28:11,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-25 18:28:11,848 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1997 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1997))) is different from true [2022-11-25 18:28:12,041 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1998 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1998))) is different from true [2022-11-25 18:28:12,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:28:12,222 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:28:12,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2022-11-25 18:28:12,259 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-25 18:28:12,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 18:28:48,876 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_18| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_18|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_18|)))) is different from true [2022-11-25 18:28:51,011 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_19| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_19|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_19|)))) is different from true [2022-11-25 18:28:53,156 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_20| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_20|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_20|) (not (= .cse0 0))))) is different from true [2022-11-25 18:28:55,286 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_21| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_21|) 0))) (and (not (= .cse0 0)) (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_21|)))) is different from true [2022-11-25 18:28:57,450 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_22| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_22|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_22|) (not (= .cse0 0))))) is different from true [2022-11-25 18:28:57,587 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 18:28:57,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2022-11-25 18:28:59,764 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_aws_hash_table_move_~from#1.base| Int) (|v_ULTIMATE.start_aws_hash_table_move_~to#1.base_BEFORE_CALL_4| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_hash_table_move_~from#1.base|) 0))) (and (<= (+ .cse0 2) |ULTIMATE.start_aws_hash_table_move_~from#1.base|) (not (= .cse0 0)) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~to#1.base_BEFORE_CALL_4|) 0) .cse0)))) is different from true [2022-11-25 18:29:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 25 proven. 66 refuted. 3 times theorem prover too weak. 12 trivial. 125 not checked. [2022-11-25 18:29:06,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:29:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:33,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388945327] [2022-11-25 18:29:33,852 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:29:33,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439295979] [2022-11-25 18:29:33,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439295979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:29:33,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:29:33,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-11-25 18:29:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835094097] [2022-11-25 18:29:33,852 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 18:29:33,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 18:29:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 18:29:33,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1383, Unknown=62, NotChecked=664, Total=2256 [2022-11-25 18:29:33,855 INFO L87 Difference]: Start difference. First operand 189 states and 214 transitions. Second operand has 39 states, 36 states have (on average 3.1944444444444446) internal successors, (115), 36 states have internal predecessors, (115), 16 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (29), 17 states have call predecessors, (29), 15 states have call successors, (29) [2022-11-25 18:29:36,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:40,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 18:29:44,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:46,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:48,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:52,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:54,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:29:56,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:00,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:04,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:06,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:10,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:12,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:16,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:18,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:23,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:25,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:27,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:29,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:31,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:33,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:37,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:39,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:41,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:43,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:47,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:49,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:51,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:53,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:55,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:30:59,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:01,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:03,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:05,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:10,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:12,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:14,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:16,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:18,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:20,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:22,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:24,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:26,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:28,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:32,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:34,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:42,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:45,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:47,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:49,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:51,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:53,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:55,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:31:58,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:00,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:01,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:04,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:06,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:08,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:10,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:12,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:14,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:16,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:18,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:20,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:22,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:24,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:26,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:28,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:30,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:42,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:44,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:32:57,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:00,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:04,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:08,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:10,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:12,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:14,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:17,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:19,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:21,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:23,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:26,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:28,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:30,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:32,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:34,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:36,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:38,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:40,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:42,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:44,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:46,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:48,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:51,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:53,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:55,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:57,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:33:59,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:01,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:02,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:04,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:06,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:08,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:11,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:13,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:15,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:17,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:19,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:21,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:23,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:34:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:34:23,393 INFO L93 Difference]: Finished difference Result 350 states and 394 transitions. [2022-11-25 18:34:23,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-25 18:34:23,394 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 3.1944444444444446) internal successors, (115), 36 states have internal predecessors, (115), 16 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (29), 17 states have call predecessors, (29), 15 states have call successors, (29) Word has length 180 [2022-11-25 18:34:23,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:34:23,397 INFO L225 Difference]: With dead ends: 350 [2022-11-25 18:34:23,397 INFO L226 Difference]: Without dead ends: 302 [2022-11-25 18:34:23,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 176 SyntacticMatches, 25 SemanticMatches, 81 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1421 ImplicationChecksByTransitivity, 135.8s TimeCoverageRelationStatistics Valid=575, Invalid=4901, Unknown=106, NotChecked=1224, Total=6806 [2022-11-25 18:34:23,400 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 337 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 301 mSolverCounterUnsat, 155 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 234.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 5012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 155 IncrementalHoareTripleChecker+Unknown, 1758 IncrementalHoareTripleChecker+Unchecked, 235.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:34:23,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 572 Invalid, 5012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 2798 Invalid, 155 Unknown, 1758 Unchecked, 235.3s Time] [2022-11-25 18:34:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-11-25 18:34:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 281. [2022-11-25 18:34:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 180 states have (on average 1.0666666666666667) internal successors, (192), 186 states have internal predecessors, (192), 60 states have call successors, (60), 35 states have call predecessors, (60), 40 states have return successors, (64), 59 states have call predecessors, (64), 58 states have call successors, (64) [2022-11-25 18:34:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 316 transitions. [2022-11-25 18:34:23,448 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 316 transitions. Word has length 180 [2022-11-25 18:34:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:34:23,449 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 316 transitions. [2022-11-25 18:34:23,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 3.1944444444444446) internal successors, (115), 36 states have internal predecessors, (115), 16 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (29), 17 states have call predecessors, (29), 15 states have call successors, (29) [2022-11-25 18:34:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 316 transitions. [2022-11-25 18:34:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-25 18:34:23,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:34:23,452 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:34:23,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 18:34:23,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 18:34:23,665 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:34:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:34:23,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1486980165, now seen corresponding path program 1 times [2022-11-25 18:34:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:34:23,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998183655] [2022-11-25 18:34:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:34:23,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:34:23,788 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:34:23,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576015099] [2022-11-25 18:34:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:34:23,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:34:23,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:34:23,790 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:34:23,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1bf575-f6cd-41a5-938e-2dee3dd9a028/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 18:34:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:34:24,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 2771 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-25 18:34:24,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:34:24,629 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:34:24,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-25 18:34:24,929 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:34:24,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:34:24,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:34:25,453 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-25 18:34:25,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 80 treesize of output 102 [2022-11-25 18:34:25,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 18:34:25,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:34:25,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:34:25,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:34:25,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 18:34:26,343 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-25 18:34:26,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-25 18:34:26,567 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2220 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2220) |c_#memory_$Pointer$.base|)) is different from true [2022-11-25 18:34:26,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:34:26,792 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 31 treesize of output 29 [2022-11-25 18:34:26,824 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-25 18:34:26,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 18:34:56,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-25 18:35:22,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-25 18:35:24,979 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_28| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_28|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_28|) (not (= 0 .cse0))))) is different from true [2022-11-25 18:35:27,112 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_29| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_29|) 0))) (and (not (= .cse0 0)) (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_29|)))) is different from true [2022-11-25 18:35:29,249 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_30| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_30|) 0))) (and (<= (+ .cse0 2) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_30|) (not (= .cse0 0))))) is different from true [2022-11-25 18:35:31,380 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_31| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_31|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_move_~from#1.base_BEFORE_CALL_31|) (not (= .cse0 0))))) is different from true [2022-11-25 18:35:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 79 proven. 86 refuted. 2 times theorem prover too weak. 16 trivial. 88 not checked. [2022-11-25 18:35:39,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:35:56,881 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2222 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_save_byte_from_array_~storage#1.base| v_ArrVal_2222) |c_ULTIMATE.start_aws_hash_table_move_harness_~#from~0#1.base|) |c_ULTIMATE.start_aws_hash_table_move_harness_~#from~0#1.offset|) 0))) is different from false [2022-11-25 18:35:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:56,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998183655] [2022-11-25 18:35:56,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 18:35:56,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576015099] [2022-11-25 18:35:56,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576015099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:35:56,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:35:56,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-11-25 18:35:56,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081862416] [2022-11-25 18:35:56,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 18:35:56,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 18:35:56,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:56,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 18:35:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1173, Unknown=44, NotChecked=450, Total=1806 [2022-11-25 18:35:56,891 INFO L87 Difference]: Start difference. First operand 281 states and 316 transitions. Second operand has 36 states, 32 states have (on average 3.78125) internal successors, (121), 33 states have internal predecessors, (121), 16 states have call successors, (32), 12 states have call predecessors, (32), 16 states have return successors, (31), 17 states have call predecessors, (31), 16 states have call successors, (31) [2022-11-25 18:35:59,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:03,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 18:36:03,091 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2220 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2220) |c_#memory_$Pointer$.base|)) (exists ((|v_ULTIMATE.start_ensure_allocated_hash_table_~map#1.base_BEFORE_CALL_42| Int)) (and (= (select |c_#valid| |v_ULTIMATE.start_ensure_allocated_hash_table_~map#1.base_BEFORE_CALL_42|) 1) (< |c_#StackHeapBarrier| |v_ULTIMATE.start_ensure_allocated_hash_table_~map#1.base_BEFORE_CALL_42|))) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_114| Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_114|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_114| 0))))) is different from true [2022-11-25 18:36:07,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:09,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:13,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:15,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:17,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:21,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:23,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:25,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:27,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:29,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:31,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:33,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:37,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:39,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:41,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:43,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:45,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:47,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:52,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:54,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:56,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:36:58,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:00,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:02,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:04,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:06,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:08,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:10,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:14,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:16,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:18,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:22,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:24,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:26,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:28,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:30,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:32,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:34,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:36,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:39,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:41,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:45,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:47,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:53,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:55,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:57,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:37:59,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:01,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:03,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:17,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:19,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:21,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:28,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:30,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:32,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:34,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:36,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:38,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:40,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:42,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:44,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:46,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:48,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:50,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:51,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:53,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:55,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:57,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:38:59,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:39:01,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:39:03,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 18:39:05,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]