./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- 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 17:07:56,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:56,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:56,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:56,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:56,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:56,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:56,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:56,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:56,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:56,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:56,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:56,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:56,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:56,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:56,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:56,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:56,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:56,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:56,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:56,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:56,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:56,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:56,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:56,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:56,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:56,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:56,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:56,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:56,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:56,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:56,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:56,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:56,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:56,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:56,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:56,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:56,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:56,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:56,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:56,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:56,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:07:56,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:56,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:56,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:56,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:56,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:07:56,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:07:56,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:56,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:56,834 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:56,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:56,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:07:56,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:56,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:07:56,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:07:56,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:07:56,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:56,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:56,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:07:56,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:56,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:56,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:07:56,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:56,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:56,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:07:56,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:07:56,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:07:56,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:07:56,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:07:56,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:07:56,839 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:07:56,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:07:56,840 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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2022-11-25 17:07:57,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:57,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:57,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:57,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:57,136 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:57,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-25 17:08:00,477 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:08:01,151 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:08:01,152 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-25 17:08:01,191 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/data/51a44a8fc/dc1ca9502f774caea192b0136e659c57/FLAG867517479 [2022-11-25 17:08:01,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/data/51a44a8fc/dc1ca9502f774caea192b0136e659c57 [2022-11-25 17:08:01,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:08:01,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:08:01,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:01,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:08:01,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:08:01,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:01" (1/1) ... [2022-11-25 17:08:01,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5678ca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:01, skipping insertion in model container [2022-11-25 17:08:01,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:08:01" (1/1) ... [2022-11-25 17:08:01,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:08:01,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:08:01,661 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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-25 17:08:01,671 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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-25 17:08:02,781 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:08:02,883 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:02,892 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,894 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,897 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,901 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:02,938 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,939 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:02,940 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,943 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,946 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,947 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:02,948 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,949 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:02,950 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,116 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:03,118 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:03,120 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:03,139 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:08:03,147 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:08:03,151 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:08:03,482 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:08:03,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:08:03,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:08:03,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:08:03,488 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:08:03,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:08:03,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:08:03,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:08:03,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:08:03,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:08:03,496 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:08:03,710 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,714 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,718 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,720 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,722 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,725 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,730 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,731 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,731 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,733 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,733 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,734 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,786 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:08:03,793 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,793 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,794 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:03,832 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:08:03,851 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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-25 17:08:03,852 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_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-25 17:08:03,945 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:08:03,971 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,977 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,977 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,978 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,979 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,985 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,994 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,995 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:03,995 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:03,999 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,000 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,002 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,005 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,006 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,007 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,008 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,024 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:04,025 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:04,028 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:08:04,040 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:08:04,042 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:08:04,043 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:08:04,093 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:08:04,094 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:08:04,095 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:08:04,096 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:08:04,098 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:08:04,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:08:04,104 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:08:04,105 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:08:04,105 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:08:04,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:08:04,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:08:04,183 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,191 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,196 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,197 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,202 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,206 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,206 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,207 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,208 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,209 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,210 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:08:04,253 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:08:04,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:08:04,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:08:04,469 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:08:04,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04 WrapperNode [2022-11-25 17:08:04,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:08:04,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:04,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:08:04,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:08:04,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,742 INFO L138 Inliner]: procedures = 691, calls = 1680, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 846 [2022-11-25 17:08:04,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:08:04,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:08:04,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:08:04,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:08:04,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:08:04,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:08:04,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:08:04,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:08:04,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (1/1) ... [2022-11-25 17:08:04,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:08:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:04,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:08:04,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:08:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:08:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 17:08:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 17:08:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 17:08:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 17:08:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 17:08:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 17:08:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-25 17:08:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-25 17:08:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:08:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 17:08:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 17:08:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:08:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:08:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:08:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:08:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:08:04,980 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 17:08:04,981 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 17:08:04,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:08:04,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:08:04,982 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 17:08:04,982 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 17:08:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-25 17:08:04,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-25 17:08:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 17:08:04,988 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 17:08:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 17:08:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 17:08:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-25 17:08:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-25 17:08:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 17:08:04,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 17:08:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:08:04,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:08:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 17:08:04,992 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 17:08:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-25 17:08:04,993 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-25 17:08:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:08:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-25 17:08:04,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-25 17:08:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:08:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:08:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 17:08:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 17:08:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 17:08:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 17:08:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-25 17:08:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-25 17:08:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:08:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 17:08:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 17:08:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-25 17:08:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-25 17:08:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:08:05,520 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:08:05,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:08:07,191 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:08:07,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:08:07,216 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:08:07,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:07 BoogieIcfgContainer [2022-11-25 17:08:07,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:08:07,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:08:07,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:08:07,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:08:07,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:08:01" (1/3) ... [2022-11-25 17:08:07,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e35f173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:07, skipping insertion in model container [2022-11-25 17:08:07,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:08:04" (2/3) ... [2022-11-25 17:08:07,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e35f173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:08:07, skipping insertion in model container [2022-11-25 17:08:07,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:08:07" (3/3) ... [2022-11-25 17:08:07,239 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2022-11-25 17:08:07,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:08:07,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:08:07,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:08:07,378 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;@50205b69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:08:07,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:08:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 164 states have (on average 1.2195121951219512) internal successors, (200), 165 states have internal predecessors, (200), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-11-25 17:08:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-25 17:08:07,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:07,406 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:07,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:07,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:07,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1870768140, now seen corresponding path program 1 times [2022-11-25 17:08:07,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:07,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810096581] [2022-11-25 17:08:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:08:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:08:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:08:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:08:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:08:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:08:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:08:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 17:08:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 17:08:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-25 17:08:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:08:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 17:08:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 17:08:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:08:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 17:08:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:08:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 17:08:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:08:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:08:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:08:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:08:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:08:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:08:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:08:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-25 17:08:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:09,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810096581] [2022-11-25 17:08:09,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810096581] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:09,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530145996] [2022-11-25 17:08:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:09,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:09,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:09,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:08:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:10,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:08:10,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-25 17:08:10,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:10,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530145996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:10,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:08:10,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-25 17:08:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446779215] [2022-11-25 17:08:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:10,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:08:10,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:08:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:08:10,318 INFO L87 Difference]: Start difference. First operand has 281 states, 164 states have (on average 1.2195121951219512) internal successors, (200), 165 states have internal predecessors, (200), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 17:08:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:10,941 INFO L93 Difference]: Finished difference Result 557 states and 840 transitions. [2022-11-25 17:08:10,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:08:10,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 146 [2022-11-25 17:08:10,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:10,968 INFO L225 Difference]: With dead ends: 557 [2022-11-25 17:08:10,969 INFO L226 Difference]: Without dead ends: 278 [2022-11-25 17:08:10,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:08:10,987 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 386 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:10,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1217 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:08:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-25 17:08:11,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2022-11-25 17:08:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 161 states have (on average 1.2111801242236024) internal successors, (195), 163 states have internal predecessors, (195), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2022-11-25 17:08:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 396 transitions. [2022-11-25 17:08:11,099 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 396 transitions. Word has length 146 [2022-11-25 17:08:11,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:11,100 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 396 transitions. [2022-11-25 17:08:11,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 17:08:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 396 transitions. [2022-11-25 17:08:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 17:08:11,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:11,120 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:11,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:11,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 17:08:11,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash 265363754, now seen corresponding path program 1 times [2022-11-25 17:08:11,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:11,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721418534] [2022-11-25 17:08:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:11,431 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:11,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432449574] [2022-11-25 17:08:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:11,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:11,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:11,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:11,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:08:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:12,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:08:12,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-11-25 17:08:12,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:12,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721418534] [2022-11-25 17:08:12,326 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:12,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432449574] [2022-11-25 17:08:12,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432449574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:12,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:12,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:08:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488124488] [2022-11-25 17:08:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:12,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:08:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:12,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:08:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:08:12,336 INFO L87 Difference]: Start difference. First operand 278 states and 396 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:08:12,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:12,416 INFO L93 Difference]: Finished difference Result 535 states and 784 transitions. [2022-11-25 17:08:12,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:12,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 176 [2022-11-25 17:08:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:12,422 INFO L225 Difference]: With dead ends: 535 [2022-11-25 17:08:12,422 INFO L226 Difference]: Without dead ends: 283 [2022-11-25 17:08:12,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:12,425 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 10 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:12,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1124 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-11-25 17:08:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 280. [2022-11-25 17:08:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 165 states have internal predecessors, (197), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2022-11-25 17:08:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 398 transitions. [2022-11-25 17:08:12,462 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 398 transitions. Word has length 176 [2022-11-25 17:08:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:12,463 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 398 transitions. [2022-11-25 17:08:12,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:08:12,464 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 398 transitions. [2022-11-25 17:08:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 17:08:12,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:12,468 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:12,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:12,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:12,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:12,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1664860694, now seen corresponding path program 1 times [2022-11-25 17:08:12,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:12,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645861583] [2022-11-25 17:08:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:12,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:12,790 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:12,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980266197] [2022-11-25 17:08:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:12,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:12,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:12,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:12,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:08:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:13,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2713 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:08:13,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-25 17:08:13,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:13,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:13,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645861583] [2022-11-25 17:08:13,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:13,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980266197] [2022-11-25 17:08:13,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980266197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:13,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:13,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:08:13,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984067270] [2022-11-25 17:08:13,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:13,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:08:13,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:13,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:08:13,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:08:13,744 INFO L87 Difference]: Start difference. First operand 280 states and 398 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-25 17:08:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:14,695 INFO L93 Difference]: Finished difference Result 512 states and 726 transitions. [2022-11-25 17:08:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:08:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 176 [2022-11-25 17:08:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:14,705 INFO L225 Difference]: With dead ends: 512 [2022-11-25 17:08:14,705 INFO L226 Difference]: Without dead ends: 280 [2022-11-25 17:08:14,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:08:14,711 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 444 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:14,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1529 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:08:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-11-25 17:08:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2022-11-25 17:08:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 165 states have internal predecessors, (197), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (104), 92 states have call predecessors, (104), 92 states have call successors, (104) [2022-11-25 17:08:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 394 transitions. [2022-11-25 17:08:14,783 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 394 transitions. Word has length 176 [2022-11-25 17:08:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:14,787 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 394 transitions. [2022-11-25 17:08:14,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-25 17:08:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 394 transitions. [2022-11-25 17:08:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-25 17:08:14,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:14,791 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:14,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:15,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:15,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash -331838195, now seen corresponding path program 2 times [2022-11-25 17:08:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:15,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11750422] [2022-11-25 17:08:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:15,123 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:15,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844212815] [2022-11-25 17:08:15,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:08:15,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:15,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:15,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:15,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:08:15,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:08:15,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:15,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:08:15,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-25 17:08:15,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:15,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11750422] [2022-11-25 17:08:15,802 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:15,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844212815] [2022-11-25 17:08:15,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844212815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:15,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:15,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:08:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590087555] [2022-11-25 17:08:15,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:15,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:15,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:15,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:15,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:15,806 INFO L87 Difference]: Start difference. First operand 280 states and 394 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 17:08:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:15,879 INFO L93 Difference]: Finished difference Result 494 states and 684 transitions. [2022-11-25 17:08:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:08:15,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 191 [2022-11-25 17:08:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:15,885 INFO L225 Difference]: With dead ends: 494 [2022-11-25 17:08:15,885 INFO L226 Difference]: Without dead ends: 285 [2022-11-25 17:08:15,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 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 17:08:15,891 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:15,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1497 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:08:15,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-25 17:08:15,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-11-25 17:08:15,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 167 states have (on average 1.2035928143712575) internal successors, (201), 169 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (106), 93 states have call predecessors, (106), 92 states have call successors, (106) [2022-11-25 17:08:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 400 transitions. [2022-11-25 17:08:15,931 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 400 transitions. Word has length 191 [2022-11-25 17:08:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:15,932 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 400 transitions. [2022-11-25 17:08:15,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 17:08:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 400 transitions. [2022-11-25 17:08:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-25 17:08:15,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:15,937 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:15,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:16,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:16,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1595114899, now seen corresponding path program 1 times [2022-11-25 17:08:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:16,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91511658] [2022-11-25 17:08:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:16,281 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:16,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110153131] [2022-11-25 17:08:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:16,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:16,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:16,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:16,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:08:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:17,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:08:17,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-11-25 17:08:17,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:17,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91511658] [2022-11-25 17:08:17,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:17,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110153131] [2022-11-25 17:08:17,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110153131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:17,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:17,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:08:17,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513772063] [2022-11-25 17:08:17,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:17,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:08:17,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:17,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:08:17,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:08:17,249 INFO L87 Difference]: Start difference. First operand 285 states and 400 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-25 17:08:18,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:18,173 INFO L93 Difference]: Finished difference Result 516 states and 720 transitions. [2022-11-25 17:08:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:08:18,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 197 [2022-11-25 17:08:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:18,177 INFO L225 Difference]: With dead ends: 516 [2022-11-25 17:08:18,177 INFO L226 Difference]: Without dead ends: 285 [2022-11-25 17:08:18,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:08:18,179 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 494 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:18,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1700 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:08:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-25 17:08:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-11-25 17:08:18,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 167 states have (on average 1.2035928143712575) internal successors, (201), 169 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (100), 93 states have call predecessors, (100), 92 states have call successors, (100) [2022-11-25 17:08:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 394 transitions. [2022-11-25 17:08:18,203 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 394 transitions. Word has length 197 [2022-11-25 17:08:18,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:18,203 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 394 transitions. [2022-11-25 17:08:18,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-25 17:08:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 394 transitions. [2022-11-25 17:08:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-25 17:08:18,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:18,208 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:18,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:18,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:18,420 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash -895724094, now seen corresponding path program 2 times [2022-11-25 17:08:18,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:18,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285149514] [2022-11-25 17:08:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:18,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:18,540 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:18,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546014600] [2022-11-25 17:08:18,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:08:18,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:18,542 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:18,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:08:19,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:08:19,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:19,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:08:19,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-11-25 17:08:19,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:19,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285149514] [2022-11-25 17:08:19,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:19,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546014600] [2022-11-25 17:08:19,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546014600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:19,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:19,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:08:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226670933] [2022-11-25 17:08:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:19,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:08:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:19,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:08:19,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:08:19,972 INFO L87 Difference]: Start difference. First operand 285 states and 394 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-25 17:08:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:20,952 INFO L93 Difference]: Finished difference Result 513 states and 703 transitions. [2022-11-25 17:08:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:08:20,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 212 [2022-11-25 17:08:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:20,958 INFO L225 Difference]: With dead ends: 513 [2022-11-25 17:08:20,958 INFO L226 Difference]: Without dead ends: 285 [2022-11-25 17:08:20,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:08:20,961 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 542 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:20,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1901 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:08:20,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-25 17:08:20,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-11-25 17:08:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 167 states have (on average 1.2035928143712575) internal successors, (201), 169 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (96), 93 states have call predecessors, (96), 92 states have call successors, (96) [2022-11-25 17:08:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions. [2022-11-25 17:08:20,983 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 212 [2022-11-25 17:08:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:20,984 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 390 transitions. [2022-11-25 17:08:20,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-25 17:08:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions. [2022-11-25 17:08:20,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-25 17:08:20,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:20,989 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:21,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:21,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:21,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash 247081526, now seen corresponding path program 1 times [2022-11-25 17:08:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:21,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556744758] [2022-11-25 17:08:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:21,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:21,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667350454] [2022-11-25 17:08:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:21,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:21,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:21,324 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:21,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:08:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 3281 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 17:08:22,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-25 17:08:22,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:22,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:22,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556744758] [2022-11-25 17:08:22,507 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:22,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667350454] [2022-11-25 17:08:22,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667350454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:22,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:22,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:08:22,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182158685] [2022-11-25 17:08:22,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:22,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:08:22,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:22,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:08:22,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:08:22,510 INFO L87 Difference]: Start difference. First operand 285 states and 390 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:08:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:22,840 INFO L93 Difference]: Finished difference Result 646 states and 908 transitions. [2022-11-25 17:08:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:08:22,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 242 [2022-11-25 17:08:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:22,844 INFO L225 Difference]: With dead ends: 646 [2022-11-25 17:08:22,844 INFO L226 Difference]: Without dead ends: 412 [2022-11-25 17:08:22,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:08:22,848 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 133 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:22,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 3317 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:08:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-25 17:08:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 388. [2022-11-25 17:08:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 223 states have (on average 1.2152466367713004) internal successors, (271), 225 states have internal predecessors, (271), 138 states have call successors, (138), 23 states have call predecessors, (138), 26 states have return successors, (145), 139 states have call predecessors, (145), 137 states have call successors, (145) [2022-11-25 17:08:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 554 transitions. [2022-11-25 17:08:22,900 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 554 transitions. Word has length 242 [2022-11-25 17:08:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:22,901 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 554 transitions. [2022-11-25 17:08:22,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:08:22,901 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 554 transitions. [2022-11-25 17:08:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-25 17:08:22,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:22,907 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:22,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:23,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:23,134 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:23,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1060060872, now seen corresponding path program 1 times [2022-11-25 17:08:23,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:23,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897747666] [2022-11-25 17:08:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:23,257 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785122071] [2022-11-25 17:08:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:23,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:23,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:23,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:23,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:08:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:24,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:08:24,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-25 17:08:24,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:24,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:24,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897747666] [2022-11-25 17:08:24,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:24,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785122071] [2022-11-25 17:08:24,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785122071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:24,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:24,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:08:24,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776718601] [2022-11-25 17:08:24,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:24,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:08:24,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:24,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:08:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:24,571 INFO L87 Difference]: Start difference. First operand 388 states and 554 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:08:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:24,964 INFO L93 Difference]: Finished difference Result 827 states and 1198 transitions. [2022-11-25 17:08:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:08:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 242 [2022-11-25 17:08:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:24,974 INFO L225 Difference]: With dead ends: 827 [2022-11-25 17:08:24,975 INFO L226 Difference]: Without dead ends: 500 [2022-11-25 17:08:24,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:08:24,979 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 129 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:24,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2973 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:08:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-25 17:08:25,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 478. [2022-11-25 17:08:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 270 states have (on average 1.2185185185185186) internal successors, (329), 272 states have internal predecessors, (329), 180 states have call successors, (180), 24 states have call predecessors, (180), 27 states have return successors, (189), 181 states have call predecessors, (189), 179 states have call successors, (189) [2022-11-25 17:08:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 698 transitions. [2022-11-25 17:08:25,044 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 698 transitions. Word has length 242 [2022-11-25 17:08:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:25,045 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 698 transitions. [2022-11-25 17:08:25,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:08:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 698 transitions. [2022-11-25 17:08:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-25 17:08:25,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:25,052 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:25,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:25,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 17:08:25,266 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -642172170, now seen corresponding path program 1 times [2022-11-25 17:08:25,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:25,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6651005] [2022-11-25 17:08:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:25,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:25,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:25,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004233810] [2022-11-25 17:08:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:25,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:25,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:25,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:08:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:26,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 17:08:26,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 282 proven. 1 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-25 17:08:26,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-25 17:08:26,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:26,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6651005] [2022-11-25 17:08:26,949 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004233810] [2022-11-25 17:08:26,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004233810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:26,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:08:26,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2022-11-25 17:08:26,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967561001] [2022-11-25 17:08:26,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:26,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:08:26,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:08:26,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:08:26,958 INFO L87 Difference]: Start difference. First operand 478 states and 698 transitions. Second operand has 11 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (43), 3 states have call predecessors, (43), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 17:08:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:27,340 INFO L93 Difference]: Finished difference Result 634 states and 884 transitions. [2022-11-25 17:08:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:08:27,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (43), 3 states have call predecessors, (43), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 242 [2022-11-25 17:08:27,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:27,344 INFO L225 Difference]: With dead ends: 634 [2022-11-25 17:08:27,344 INFO L226 Difference]: Without dead ends: 289 [2022-11-25 17:08:27,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:08:27,347 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 3 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:27,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2732 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:08:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-25 17:08:27,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 288. [2022-11-25 17:08:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 169 states have (on average 1.1893491124260356) internal successors, (201), 172 states have internal predecessors, (201), 93 states have call successors, (93), 22 states have call predecessors, (93), 25 states have return successors, (97), 93 states have call predecessors, (97), 92 states have call successors, (97) [2022-11-25 17:08:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 391 transitions. [2022-11-25 17:08:27,377 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 391 transitions. Word has length 242 [2022-11-25 17:08:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:27,377 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 391 transitions. [2022-11-25 17:08:27,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (43), 3 states have call predecessors, (43), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 17:08:27,378 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 391 transitions. [2022-11-25 17:08:27,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-25 17:08:27,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:27,383 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:27,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:27,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:27,596 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash 2101338209, now seen corresponding path program 1 times [2022-11-25 17:08:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:27,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428235453] [2022-11-25 17:08:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:27,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:27,707 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:27,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719964356] [2022-11-25 17:08:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:27,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:27,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:27,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:27,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:08:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:28,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-25 17:08:28,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-25 17:08:29,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:29,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:29,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428235453] [2022-11-25 17:08:29,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:29,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719964356] [2022-11-25 17:08:29,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719964356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:29,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:29,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 17:08:29,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907603881] [2022-11-25 17:08:29,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:29,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:08:29,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:08:29,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:08:29,307 INFO L87 Difference]: Start difference. First operand 288 states and 391 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-11-25 17:08:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:33,662 INFO L93 Difference]: Finished difference Result 806 states and 1163 transitions. [2022-11-25 17:08:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:08:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 253 [2022-11-25 17:08:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:33,668 INFO L225 Difference]: With dead ends: 806 [2022-11-25 17:08:33,668 INFO L226 Difference]: Without dead ends: 544 [2022-11-25 17:08:33,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:08:33,671 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 342 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:33,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 3321 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 17:08:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-11-25 17:08:33,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 527. [2022-11-25 17:08:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 308 states have (on average 1.1948051948051948) internal successors, (368), 314 states have internal predecessors, (368), 171 states have call successors, (171), 42 states have call predecessors, (171), 47 states have return successors, (234), 170 states have call predecessors, (234), 169 states have call successors, (234) [2022-11-25 17:08:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 773 transitions. [2022-11-25 17:08:33,738 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 773 transitions. Word has length 253 [2022-11-25 17:08:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:33,739 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 773 transitions. [2022-11-25 17:08:33,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-11-25 17:08:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 773 transitions. [2022-11-25 17:08:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-25 17:08:33,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:33,748 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:33,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:33,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:08:33,961 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:33,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1747084271, now seen corresponding path program 1 times [2022-11-25 17:08:33,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:33,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940347366] [2022-11-25 17:08:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:33,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:34,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:34,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607608177] [2022-11-25 17:08:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:34,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:34,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:34,060 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:34,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:08:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:34,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:08:35,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-11-25 17:08:35,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:35,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940347366] [2022-11-25 17:08:35,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:35,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607608177] [2022-11-25 17:08:35,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607608177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:35,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:35,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:08:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39886191] [2022-11-25 17:08:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:35,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:08:35,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:08:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:08:35,083 INFO L87 Difference]: Start difference. First operand 527 states and 773 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 17:08:35,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:08:35,522 INFO L93 Difference]: Finished difference Result 1038 states and 1632 transitions. [2022-11-25 17:08:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:08:35,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 257 [2022-11-25 17:08:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:08:35,528 INFO L225 Difference]: With dead ends: 1038 [2022-11-25 17:08:35,528 INFO L226 Difference]: Without dead ends: 537 [2022-11-25 17:08:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:35,534 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 10 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:08:35,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1447 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:08:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-11-25 17:08:35,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 529. [2022-11-25 17:08:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 310 states have (on average 1.1935483870967742) internal successors, (370), 316 states have internal predecessors, (370), 171 states have call successors, (171), 42 states have call predecessors, (171), 47 states have return successors, (234), 170 states have call predecessors, (234), 169 states have call successors, (234) [2022-11-25 17:08:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 775 transitions. [2022-11-25 17:08:35,609 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 775 transitions. Word has length 257 [2022-11-25 17:08:35,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:08:35,609 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 775 transitions. [2022-11-25 17:08:35,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 17:08:35,610 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 775 transitions. [2022-11-25 17:08:35,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-25 17:08:35,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:08:35,613 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:35,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:35,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:08:35,828 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:08:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash 313905941, now seen corresponding path program 1 times [2022-11-25 17:08:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:35,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955420646] [2022-11-25 17:08:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:35,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:35,938 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:08:35,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873343602] [2022-11-25 17:08:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:35,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:35,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:35,940 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:35,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:08:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:36,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 3326 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-25 17:08:36,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:39,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-11-25 17:08:39,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-25 17:08:39,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-11-25 17:08:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 6 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-11-25 17:08:39,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:40,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 17:08:40,850 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-25 17:08:40,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-25 17:08:41,193 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 17:08:41,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2022-11-25 17:08:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 30 proven. 80 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-11-25 17:08:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:41,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955420646] [2022-11-25 17:08:41,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:08:41,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873343602] [2022-11-25 17:08:41,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873343602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:41,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:08:41,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2022-11-25 17:08:41,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666446604] [2022-11-25 17:08:41,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:41,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 17:08:41,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:41,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 17:08:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 17:08:41,362 INFO L87 Difference]: Start difference. First operand 529 states and 775 transitions. Second operand has 36 states, 32 states have (on average 5.625) internal successors, (180), 30 states have internal predecessors, (180), 16 states have call successors, (64), 6 states have call predecessors, (64), 12 states have return successors, (61), 15 states have call predecessors, (61), 15 states have call successors, (61) [2022-11-25 17:08:43,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:08:46,038 WARN L539 Checker$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 17:08:48,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:08:50,087 WARN L539 Checker$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 17:08:52,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:08:54,185 WARN L539 Checker$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 17:08:56,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:08:58,275 WARN L539 Checker$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 17:09:00,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:02,428 WARN L539 Checker$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 17:09:04,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:06,533 WARN L539 Checker$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 17:09:08,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:10,652 WARN L539 Checker$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 17:09:12,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:09:14,722 WARN L539 Checker$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 17:09:17,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:19,039 WARN L539 Checker$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 17:09:21,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:23,151 WARN L539 Checker$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 17:09:25,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:27,241 WARN L539 Checker$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 17:09:30,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:32,872 WARN L539 Checker$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 17:09:35,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:37,118 WARN L539 Checker$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 17:09:39,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:41,226 WARN L539 Checker$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 17:09:43,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:45,284 WARN L539 Checker$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 17:09:47,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:49,337 WARN L539 Checker$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 17:09:52,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:09:54,360 WARN L539 Checker$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 17:09:56,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:09:58,462 WARN L539 Checker$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 17:10:00,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:03,085 WARN L539 Checker$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 17:10:05,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:07,950 WARN L539 Checker$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 17:10:10,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:12,109 WARN L539 Checker$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 17:10:14,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:16,435 WARN L539 Checker$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 17:10:18,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:20,525 WARN L539 Checker$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 17:10:22,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:24,630 WARN L539 Checker$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 17:10:26,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:28,916 WARN L539 Checker$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 17:10:30,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:33,037 WARN L539 Checker$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 17:10:37,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:39,423 WARN L539 Checker$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 17:10:42,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:44,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:46,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:10:48,971 WARN L539 Checker$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 17:10:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:10:55,783 INFO L93 Difference]: Finished difference Result 1411 states and 2178 transitions. [2022-11-25 17:10:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 17:10:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 5.625) internal successors, (180), 30 states have internal predecessors, (180), 16 states have call successors, (64), 6 states have call predecessors, (64), 12 states have return successors, (61), 15 states have call predecessors, (61), 15 states have call successors, (61) Word has length 257 [2022-11-25 17:10:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:10:55,795 INFO L225 Difference]: With dead ends: 1411 [2022-11-25 17:10:55,795 INFO L226 Difference]: Without dead ends: 915 [2022-11-25 17:10:55,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 477 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=353, Invalid=2617, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 17:10:55,800 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 723 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 6859 mSolverCounterSat, 364 mSolverCounterUnsat, 58 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 130.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 5610 SdHoareTripleChecker+Invalid, 7281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 6859 IncrementalHoareTripleChecker+Invalid, 58 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:10:55,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 5610 Invalid, 7281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 6859 Invalid, 58 Unknown, 0 Unchecked, 132.6s Time] [2022-11-25 17:10:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-25 17:10:55,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 809. [2022-11-25 17:10:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 476 states have (on average 1.184873949579832) internal successors, (564), 485 states have internal predecessors, (564), 257 states have call successors, (257), 67 states have call predecessors, (257), 75 states have return successors, (447), 256 states have call predecessors, (447), 253 states have call successors, (447) [2022-11-25 17:10:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1268 transitions. [2022-11-25 17:10:55,970 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1268 transitions. Word has length 257 [2022-11-25 17:10:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:10:55,970 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1268 transitions. [2022-11-25 17:10:55,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 5.625) internal successors, (180), 30 states have internal predecessors, (180), 16 states have call successors, (64), 6 states have call predecessors, (64), 12 states have return successors, (61), 15 states have call predecessors, (61), 15 states have call successors, (61) [2022-11-25 17:10:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1268 transitions. [2022-11-25 17:10:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-25 17:10:55,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:55,976 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:55,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:10:56,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:10:56,192 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:10:56,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:56,192 INFO L85 PathProgramCache]: Analyzing trace with hash 145973653, now seen corresponding path program 1 times [2022-11-25 17:10:56,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:56,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747441996] [2022-11-25 17:10:56,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:56,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:56,313 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:10:56,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286038261] [2022-11-25 17:10:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:56,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:10:56,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:56,316 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:10:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 17:10:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:57,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 3326 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-25 17:10:57,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:10:57,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:10:57,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:10:57,731 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 21 treesize of output 20 [2022-11-25 17:10:57,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:10:57,742 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 21 treesize of output 20 [2022-11-25 17:10:57,926 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2109 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2109) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2108 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2108) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:10:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:10:58,468 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 16 treesize of output 18 [2022-11-25 17:10:58,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:10:58,480 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 16 treesize of output 18 [2022-11-25 17:10:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 177 proven. 4 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-25 17:10:58,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:10:59,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:59,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747441996] [2022-11-25 17:10:59,219 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:10:59,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286038261] [2022-11-25 17:10:59,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286038261] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:10:59,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:10:59,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2022-11-25 17:10:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59081660] [2022-11-25 17:10:59,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:10:59,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:10:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:59,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:10:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=4, NotChecked=28, Total=272 [2022-11-25 17:10:59,223 INFO L87 Difference]: Start difference. First operand 809 states and 1268 transitions. Second operand has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 5 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-25 17:11:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:11:11,233 INFO L93 Difference]: Finished difference Result 1810 states and 3014 transitions. [2022-11-25 17:11:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:11:11,234 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 5 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) Word has length 257 [2022-11-25 17:11:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:11:11,244 INFO L225 Difference]: With dead ends: 1810 [2022-11-25 17:11:11,244 INFO L226 Difference]: Without dead ends: 1024 [2022-11-25 17:11:11,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 446 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=125, Invalid=627, Unknown=8, NotChecked=52, Total=812 [2022-11-25 17:11:11,250 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 357 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 4180 mSolverCounterSat, 308 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 5207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 4180 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 666 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:11:11,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1626 Invalid, 5207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [308 Valid, 4180 Invalid, 53 Unknown, 666 Unchecked, 11.1s Time] [2022-11-25 17:11:11,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-25 17:11:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 956. [2022-11-25 17:11:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 564 states have (on average 1.1843971631205674) internal successors, (668), 577 states have internal predecessors, (668), 302 states have call successors, (302), 74 states have call predecessors, (302), 89 states have return successors, (698), 304 states have call predecessors, (698), 298 states have call successors, (698) [2022-11-25 17:11:11,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1668 transitions. [2022-11-25 17:11:11,482 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1668 transitions. Word has length 257 [2022-11-25 17:11:11,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:11:11,482 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1668 transitions. [2022-11-25 17:11:11,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 5 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (31), 5 states have call predecessors, (31), 5 states have call successors, (31) [2022-11-25 17:11:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1668 transitions. [2022-11-25 17:11:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-25 17:11:11,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:11:11,488 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:11:11,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:11:11,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:11:11,704 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:11:11,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:11:11,706 INFO L85 PathProgramCache]: Analyzing trace with hash -842494716, now seen corresponding path program 1 times [2022-11-25 17:11:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:11:11,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169487182] [2022-11-25 17:11:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:11,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:11:11,819 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:11:11,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010952569] [2022-11-25 17:11:11,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:11,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:11:11,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:11:11,821 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:11:11,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 17:11:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:12,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 3365 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-25 17:11:12,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:11:13,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 17:11:13,141 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 17:11:13,329 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2348 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2348)) |c_#memory_$Pointer$.offset|)) is different from true [2022-11-25 17:11:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:11:13,839 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 21 treesize of output 20 [2022-11-25 17:11:14,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-25 17:11:32,768 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2350 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2350)))) is different from true [2022-11-25 17:11:32,783 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2350 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2350)) |c_#memory_$Pointer$.base|)) is different from true [2022-11-25 17:11:32,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:11:32,821 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 22 treesize of output 21 [2022-11-25 17:11:45,382 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2352 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2352)))) is different from true [2022-11-25 17:11:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:11:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 352 proven. 40 refuted. 4 times theorem prover too weak. 138 trivial. 25 not checked. [2022-11-25 17:11:53,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:11:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:11:56,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169487182] [2022-11-25 17:11:56,393 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:11:56,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010952569] [2022-11-25 17:11:56,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010952569] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:11:56,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:11:56,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-11-25 17:11:56,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595468853] [2022-11-25 17:11:56,394 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:11:56,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-25 17:11:56,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:11:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-25 17:11:56,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=910, Unknown=119, NotChecked=268, Total=1406 [2022-11-25 17:11:56,397 INFO L87 Difference]: Start difference. First operand 956 states and 1668 transitions. Second operand has 37 states, 32 states have (on average 3.875) internal successors, (124), 32 states have internal predecessors, (124), 15 states have call successors, (37), 8 states have call predecessors, (37), 13 states have return successors, (35), 14 states have call predecessors, (35), 15 states have call successors, (35) [2022-11-25 17:12:00,900 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 17:12:03,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:05,521 WARN L539 Checker$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 17:12:07,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:09,955 WARN L539 Checker$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 17:12:12,135 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 17:12:12,152 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2352 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2352)))) (exists ((v_ArrVal_2350 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2350)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2348 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2348)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:12:16,401 WARN L539 Checker$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 17:12:18,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:22,545 WARN L539 Checker$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 17:12:26,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:30,879 WARN L539 Checker$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 17:12:35,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:37,151 WARN L539 Checker$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 17:12:41,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:45,534 WARN L539 Checker$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 17:12:47,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:51,652 WARN L539 Checker$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 17:12:53,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:12:57,725 WARN L539 Checker$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 17:12:59,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:01,741 WARN L539 Checker$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 17:13:08,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:12,225 WARN L539 Checker$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 17:13:18,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:30,008 WARN L539 Checker$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 17:13:32,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:38,755 WARN L539 Checker$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 17:13:44,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:46,540 WARN L539 Checker$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 17:13:48,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:50,781 WARN L539 Checker$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 17:13:52,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:13:55,057 WARN L539 Checker$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 17:14:13,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:16,803 WARN L539 Checker$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 17:14:21,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:24,320 WARN L539 Checker$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 17:14:26,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:28,589 WARN L539 Checker$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 17:14:30,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:33,007 WARN L539 Checker$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 17:14:35,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:39,266 WARN L539 Checker$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 17:14:41,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:43,643 WARN L539 Checker$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 17:14:45,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:47,982 WARN L539 Checker$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 17:14:50,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:52,711 WARN L539 Checker$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 17:14:54,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:14:57,221 WARN L539 Checker$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 17:14:59,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:01,521 WARN L539 Checker$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 17:15:03,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:06,785 WARN L539 Checker$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 17:15:08,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:10,944 WARN L539 Checker$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 17:15:15,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:17,195 WARN L539 Checker$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 17:15:19,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:21,891 WARN L539 Checker$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 17:15:23,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:26,692 WARN L539 Checker$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 17:15:28,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:31,491 WARN L539 Checker$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 17:15:33,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:36,020 WARN L539 Checker$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 17:15:38,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:40,154 WARN L539 Checker$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 17:15:42,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:44,285 WARN L539 Checker$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 17:15:46,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:48,405 WARN L539 Checker$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 17:15:50,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:53,190 WARN L539 Checker$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 17:15:55,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:15:57,282 WARN L539 Checker$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 17:16:00,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:02,081 WARN L539 Checker$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 17:16:04,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:06,197 WARN L539 Checker$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 17:16:08,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:10,306 WARN L539 Checker$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 17:16:12,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:14,424 WARN L539 Checker$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 17:16:19,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:21,687 WARN L539 Checker$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 17:16:23,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:25,728 WARN L539 Checker$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 17:16:27,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:29,916 WARN L539 Checker$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 17:16:33,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:36,638 WARN L539 Checker$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 17:16:39,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:40,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:43,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:45,541 WARN L539 Checker$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 17:16:47,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:50,162 WARN L539 Checker$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 17:16:52,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:54,881 WARN L539 Checker$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 17:16:57,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:16:59,515 WARN L539 Checker$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 17:17:01,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:05,140 WARN L539 Checker$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 17:17:07,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:09,728 WARN L539 Checker$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 17:17:11,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:13,935 WARN L539 Checker$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 17:17:16,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:18,481 WARN L539 Checker$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 17:17:20,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:22,799 WARN L539 Checker$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 17:17:26,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:28,445 WARN L539 Checker$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 17:17:30,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:32,642 WARN L539 Checker$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 17:17:34,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:37,869 WARN L539 Checker$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 17:17:40,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:43,830 WARN L539 Checker$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 17:17:47,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:49,759 WARN L539 Checker$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 17:17:52,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:17:54,763 WARN L539 Checker$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 17:17:58,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:00,717 WARN L539 Checker$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 17:18:03,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:05,458 WARN L539 Checker$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 17:18:08,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:10,873 WARN L539 Checker$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 17:18:12,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:15,901 WARN L539 Checker$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 17:18:17,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:20,053 WARN L539 Checker$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 17:18:22,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:25,551 WARN L539 Checker$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 17:18:28,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:31,096 WARN L539 Checker$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 17:18:33,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:36,061 WARN L539 Checker$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 17:18:38,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:40,642 WARN L539 Checker$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 17:18:44,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:46,079 WARN L539 Checker$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 17:18:48,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:52,135 WARN L539 Checker$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 17:18:54,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:18:57,619 WARN L539 Checker$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 17:18:59,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:19:02,837 WARN L539 Checker$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 17:19:05,197 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 17:19:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:06,227 INFO L93 Difference]: Finished difference Result 3086 states and 5714 transitions. [2022-11-25 17:19:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-25 17:19:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 3.875) internal successors, (124), 32 states have internal predecessors, (124), 15 states have call successors, (37), 8 states have call predecessors, (37), 13 states have return successors, (35), 14 states have call predecessors, (35), 15 states have call successors, (35) Word has length 263 [2022-11-25 17:19:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:06,252 INFO L225 Difference]: With dead ends: 3086 [2022-11-25 17:19:06,252 INFO L226 Difference]: Without dead ends: 2246 [2022-11-25 17:19:06,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 326 SyntacticMatches, 13 SemanticMatches, 100 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 106.8s TimeCoverageRelationStatistics Valid=1293, Invalid=7876, Unknown=163, NotChecked=970, Total=10302 [2022-11-25 17:19:06,263 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 1461 mSDsluCounter, 6599 mSDsCounter, 0 mSdLazyCounter, 22325 mSolverCounterSat, 1917 mSolverCounterUnsat, 763 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 360.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 31113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1917 IncrementalHoareTripleChecker+Valid, 22325 IncrementalHoareTripleChecker+Invalid, 763 IncrementalHoareTripleChecker+Unknown, 6108 IncrementalHoareTripleChecker+Unchecked, 364.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:06,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 7156 Invalid, 31113 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1917 Valid, 22325 Invalid, 763 Unknown, 6108 Unchecked, 364.0s Time] [2022-11-25 17:19:06,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2022-11-25 17:19:06,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2137. [2022-11-25 17:19:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 1248 states have (on average 1.1971153846153846) internal successors, (1494), 1274 states have internal predecessors, (1494), 704 states have call successors, (704), 154 states have call predecessors, (704), 184 states have return successors, (1745), 708 states have call predecessors, (1745), 696 states have call successors, (1745) [2022-11-25 17:19:06,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3943 transitions. [2022-11-25 17:19:06,770 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3943 transitions. Word has length 263 [2022-11-25 17:19:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:06,771 INFO L495 AbstractCegarLoop]: Abstraction has 2137 states and 3943 transitions. [2022-11-25 17:19:06,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 3.875) internal successors, (124), 32 states have internal predecessors, (124), 15 states have call successors, (37), 8 states have call predecessors, (37), 13 states have return successors, (35), 14 states have call predecessors, (35), 15 states have call successors, (35) [2022-11-25 17:19:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3943 transitions. [2022-11-25 17:19:06,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-25 17:19:06,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:06,781 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:06,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:06,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:19:06,991 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:19:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2061239293, now seen corresponding path program 1 times [2022-11-25 17:19:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:19:06,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687941759] [2022-11-25 17:19:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:06,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:19:07,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:19:07,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235177358] [2022-11-25 17:19:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:07,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:07,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:19:07,092 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:19:07,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 17:19:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:07,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-25 17:19:07,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 376 proven. 1 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-25 17:19:08,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 47 proven. 47 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-11-25 17:19:09,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:19:09,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687941759] [2022-11-25 17:19:09,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:19:09,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235177358] [2022-11-25 17:19:09,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235177358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:19:09,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:19:09,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15] total 29 [2022-11-25 17:19:09,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711808476] [2022-11-25 17:19:09,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:09,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 17:19:09,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:19:09,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 17:19:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=751, Unknown=0, NotChecked=0, Total=812 [2022-11-25 17:19:09,358 INFO L87 Difference]: Start difference. First operand 2137 states and 3943 transitions. Second operand has 29 states, 25 states have (on average 5.88) internal successors, (147), 20 states have internal predecessors, (147), 7 states have call successors, (51), 3 states have call predecessors, (51), 9 states have return successors, (54), 11 states have call predecessors, (54), 6 states have call successors, (54) [2022-11-25 17:19:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:10,832 INFO L93 Difference]: Finished difference Result 3095 states and 5524 transitions. [2022-11-25 17:19:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 17:19:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.88) internal successors, (147), 20 states have internal predecessors, (147), 7 states have call successors, (51), 3 states have call predecessors, (51), 9 states have return successors, (54), 11 states have call predecessors, (54), 6 states have call successors, (54) Word has length 282 [2022-11-25 17:19:10,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:10,845 INFO L225 Difference]: With dead ends: 3095 [2022-11-25 17:19:10,845 INFO L226 Difference]: Without dead ends: 1040 [2022-11-25 17:19:10,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 531 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 17:19:10,861 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 35 mSDsluCounter, 8922 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:10,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 9290 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 17:19:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-11-25 17:19:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 972. [2022-11-25 17:19:11,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 584 states have (on average 1.1712328767123288) internal successors, (684), 598 states have internal predecessors, (684), 291 states have call successors, (291), 82 states have call predecessors, (291), 96 states have return successors, (678), 291 states have call predecessors, (678), 287 states have call successors, (678) [2022-11-25 17:19:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1653 transitions. [2022-11-25 17:19:11,088 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1653 transitions. Word has length 282 [2022-11-25 17:19:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:11,095 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1653 transitions. [2022-11-25 17:19:11,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.88) internal successors, (147), 20 states have internal predecessors, (147), 7 states have call successors, (51), 3 states have call predecessors, (51), 9 states have return successors, (54), 11 states have call predecessors, (54), 6 states have call successors, (54) [2022-11-25 17:19:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1653 transitions. [2022-11-25 17:19:11,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-25 17:19:11,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:11,101 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:11,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:11,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:11,317 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:19:11,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:11,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2013443463, now seen corresponding path program 1 times [2022-11-25 17:19:11,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:19:11,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523116149] [2022-11-25 17:19:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:11,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:19:11,422 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:19:11,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109107257] [2022-11-25 17:19:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:11,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:11,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:19:11,425 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:19:11,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 17:19:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:12,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3371 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-25 17:19:12,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:12,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:19:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:12,846 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 21 treesize of output 20 [2022-11-25 17:19:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:12,860 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 21 treesize of output 20 [2022-11-25 17:19:13,025 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2787 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2787))) (exists ((v_ArrVal_2786 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2786)))) is different from true [2022-11-25 17:19:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:13,290 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 16 treesize of output 18 [2022-11-25 17:19:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:13,304 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 16 treesize of output 18 [2022-11-25 17:19:13,328 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 17:19:13,328 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 17:19:14,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 17:19:14,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 17:19:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 281 proven. 20 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-11-25 17:19:14,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:19:14,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:19:14,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523116149] [2022-11-25 17:19:14,693 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:19:14,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109107257] [2022-11-25 17:19:14,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109107257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:19:14,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:19:14,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2022-11-25 17:19:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622572821] [2022-11-25 17:19:14,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:19:14,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 17:19:14,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:19:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:19:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=253, Unknown=3, NotChecked=32, Total=342 [2022-11-25 17:19:14,697 INFO L87 Difference]: Start difference. First operand 972 states and 1653 transitions. Second operand has 17 states, 16 states have (on average 6.25) internal successors, (100), 15 states have internal predecessors, (100), 7 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-25 17:19:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:27,249 INFO L93 Difference]: Finished difference Result 2318 states and 4079 transitions. [2022-11-25 17:19:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 17:19:27,250 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.25) internal successors, (100), 15 states have internal predecessors, (100), 7 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 264 [2022-11-25 17:19:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:27,268 INFO L225 Difference]: With dead ends: 2318 [2022-11-25 17:19:27,268 INFO L226 Difference]: Without dead ends: 1695 [2022-11-25 17:19:27,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 452 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=180, Invalid=872, Unknown=8, NotChecked=62, Total=1122 [2022-11-25 17:19:27,275 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 431 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 4608 mSolverCounterSat, 388 mSolverCounterUnsat, 155 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 5986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 4608 IncrementalHoareTripleChecker+Invalid, 155 IncrementalHoareTripleChecker+Unknown, 835 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:27,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 2529 Invalid, 5986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [388 Valid, 4608 Invalid, 155 Unknown, 835 Unchecked, 11.6s Time] [2022-11-25 17:19:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2022-11-25 17:19:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1453. [2022-11-25 17:19:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 856 states have (on average 1.1787383177570094) internal successors, (1009), 881 states have internal predecessors, (1009), 463 states have call successors, (463), 107 states have call predecessors, (463), 133 states have return successors, (1121), 464 states have call predecessors, (1121), 459 states have call successors, (1121) [2022-11-25 17:19:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2593 transitions. [2022-11-25 17:19:27,551 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2593 transitions. Word has length 264 [2022-11-25 17:19:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:27,552 INFO L495 AbstractCegarLoop]: Abstraction has 1453 states and 2593 transitions. [2022-11-25 17:19:27,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.25) internal successors, (100), 15 states have internal predecessors, (100), 7 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-25 17:19:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2593 transitions. [2022-11-25 17:19:27,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-25 17:19:27,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:27,558 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:27,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:27,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 17:19:27,774 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:19:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:27,775 INFO L85 PathProgramCache]: Analyzing trace with hash 271315338, now seen corresponding path program 1 times [2022-11-25 17:19:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:19:27,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756488274] [2022-11-25 17:19:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:19:27,868 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:19:27,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417049525] [2022-11-25 17:19:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:27,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:27,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:19:27,870 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:19:27,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0fbffb-5df4-4f3e-81b7-cb7938beb4d6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 17:19:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:29,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 198 conjunts are in the unsatisfiable core [2022-11-25 17:19:29,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:30,784 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3022 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3025 Int) (v_ArrVal_3024 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3025))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3022)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3024)) |c_#memory_$Pointer$.base|))) is different from true [2022-11-25 17:19:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:31,625 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 33 treesize of output 32 [2022-11-25 17:19:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:31,639 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 33 treesize of output 32 [2022-11-25 17:19:31,666 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 17:19:31,667 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 18 treesize of output 24 [2022-11-25 17:19:31,675 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 9 treesize of output 5 [2022-11-25 17:19:32,395 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3031 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3028 Int) (v_ArrVal_3030 Int)) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3031) |c_#memory_int|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3028))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3030))))) is different from true [2022-11-25 17:19:32,742 WARN L859 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (select (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616))) (exists ((v_ArrVal_3022 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3025 Int) (v_ArrVal_3024 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3024)) |c_#memory_$Pointer$.base|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3022)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3025)))))) is different from true [2022-11-25 17:19:32,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:19:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:32,820 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 33 treesize of output 32 [2022-11-25 17:19:32,844 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-25 17:19:32,844 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 18 treesize of output 18 [2022-11-25 17:19:32,854 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 9 treesize of output 5 [2022-11-25 17:19:32,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:19:32,871 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 33 treesize of output 32 [2022-11-25 17:19:57,981 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3034 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3036 Int) (v_ArrVal_3035 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3036))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3035))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3034) |c_#memory_int|))) is different from true [2022-11-25 17:20:00,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:20:00,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:20:00,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:20:00,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-25 17:20:00,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 17:20:00,441 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:20:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 342 proven. 68 refuted. 0 times theorem prover too weak. 133 trivial. 20 not checked. [2022-11-25 17:20:00,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:01,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:01,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756488274] [2022-11-25 17:20:01,204 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:20:01,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417049525] [2022-11-25 17:20:01,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417049525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:01,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:20:01,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-11-25 17:20:01,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838306954] [2022-11-25 17:20:01,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:20:01,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 17:20:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 17:20:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=616, Unknown=24, NotChecked=212, Total=930 [2022-11-25 17:20:01,208 INFO L87 Difference]: Start difference. First operand 1453 states and 2593 transitions. Second operand has 30 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 11 states have call successors, (36), 6 states have call predecessors, (36), 11 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2022-11-25 17:20:03,449 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 17:20:05,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:08,342 WARN L539 Checker$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 17:20:10,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:12,609 WARN L539 Checker$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 17:20:14,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:16,876 WARN L539 Checker$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 17:20:19,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:21,167 WARN L539 Checker$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 17:20:21,197 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3031 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3028 Int) (v_ArrVal_3030 Int)) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3031) |c_#memory_int|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3028))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3030))))) (exists ((v_ArrVal_3034 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3036 Int) (v_ArrVal_3035 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3036))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3035))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3034) |c_#memory_int|))) (exists ((v_ArrVal_3022 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3025 Int) (v_ArrVal_3024 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3025))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_3022)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3024)) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-25 17:20:24,842 WARN L539 Checker$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 17:20:27,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:29,603 WARN L539 Checker$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 17:20:31,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:33,962 WARN L539 Checker$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 17:20:36,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:38,042 WARN L539 Checker$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 17:20:42,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:44,330 WARN L539 Checker$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 17:20:48,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:20:52,809 WARN L539 Checker$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 17:20:57,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:01,225 WARN L539 Checker$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 17:21:05,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:09,499 WARN L539 Checker$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 17:21:11,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:13,534 WARN L539 Checker$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 17:21:15,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:19,760 WARN L539 Checker$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 17:21:23,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:28,048 WARN L539 Checker$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 17:21:30,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:32,081 WARN L539 Checker$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 17:21:34,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:37,171 WARN L539 Checker$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 17:21:39,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:41,300 WARN L539 Checker$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 17:21:43,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:45,886 WARN L539 Checker$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 17:21:47,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:50,021 WARN L539 Checker$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 17:21:52,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:54,740 WARN L539 Checker$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 17:21:57,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:21:59,333 WARN L539 Checker$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 17:22:03,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:06,849 WARN L539 Checker$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 17:22:08,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:11,010 WARN L539 Checker$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 17:22:13,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:15,721 WARN L539 Checker$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 17:22:17,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:20,600 WARN L539 Checker$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 17:22:26,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:28,591 WARN L539 Checker$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 17:22:31,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:33,145 WARN L539 Checker$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 17:22:35,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:22:37,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]