./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8 --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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- 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-e04fb08 [2022-11-16 12:09:14,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:09:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:09:14,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:09:14,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:09:14,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:09:14,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:09:14,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:09:14,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:09:14,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:09:14,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:09:14,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:09:14,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:09:14,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:09:14,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:09:14,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:09:14,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:09:14,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:09:14,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:09:14,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:09:14,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:09:14,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:09:15,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:09:15,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:09:15,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:09:15,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:09:15,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:09:15,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:09:15,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:09:15,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:09:15,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:09:15,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:09:15,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:09:15,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:09:15,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:09:15,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:09:15,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:09:15,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:09:15,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:09:15,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:09:15,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:09:15,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:09:15,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:09:15,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:09:15,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:09:15,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:09:15,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:09:15,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:09:15,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:09:15,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:09:15,045 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:09:15,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:09:15,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:09:15,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:09:15,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:09:15,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:09:15,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:09:15,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:09:15,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:09:15,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:09:15,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:09:15,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:09:15,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:09:15,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:15,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:09:15,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:09:15,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:09:15,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:09:15,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:09:15,051 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:09:15,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:09:15,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:09:15,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-11-16 12:09:15,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:09:15,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:09:15,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:09:15,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:09:15,306 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:09:15,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-16 12:09:15,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/data/ba672ae6a/ff1e9f35c93a467bb994ebebf545791f/FLAG456d97a71 [2022-11-16 12:09:16,100 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:09:16,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-16 12:09:16,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/data/ba672ae6a/ff1e9f35c93a467bb994ebebf545791f/FLAG456d97a71 [2022-11-16 12:09:16,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/data/ba672ae6a/ff1e9f35c93a467bb994ebebf545791f [2022-11-16 12:09:16,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:09:16,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:09:16,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:16,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:09:16,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:09:16,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:16" (1/1) ... [2022-11-16 12:09:16,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290b0112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:16, skipping insertion in model container [2022-11-16 12:09:16,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:16" (1/1) ... [2022-11-16 12:09:16,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:09:16,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:09:16,651 WARN L229 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_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-16 12:09:16,658 WARN L229 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_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-16 12:09:17,805 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:09:17,913 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,914 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,914 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,915 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,918 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,948 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,951 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,953 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,954 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,956 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,957 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,959 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:17,959 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:09:18,418 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:09:18,419 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:09:18,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:09:18,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:09:18,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:09:18,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:09:18,424 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:09:18,424 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:09:18,425 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:09:18,598 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,609 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:18,715 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:09:18,728 WARN L229 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_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-16 12:09:18,729 WARN L229 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_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-16 12:09:18,765 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 12:09:18,784 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,785 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,785 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,786 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,786 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,793 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,794 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,795 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,796 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,797 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,798 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,798 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,799 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,830 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 12:09:18,831 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 12:09:18,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 12:09:18,833 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 12:09:18,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 12:09:18,838 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 12:09:18,839 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 12:09:18,840 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 12:09:18,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 12:09:18,844 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 12:09:18,899 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,906 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 12:09:18,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:19,141 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:09:19,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19 WrapperNode [2022-11-16 12:09:19,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:19,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:19,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:09:19,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:09:19,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,329 INFO L138 Inliner]: procedures = 691, calls = 1700, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 616 [2022-11-16 12:09:19,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:19,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:09:19,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:09:19,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:09:19,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,409 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:09:19,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:09:19,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:09:19,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:09:19,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (1/1) ... [2022-11-16 12:09:19,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:19,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:19,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:19,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:09:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:09:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-16 12:09:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-16 12:09:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-16 12:09:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-16 12:09:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 12:09:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 12:09:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:09:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-16 12:09:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-16 12:09:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:09:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:09:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:09:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:09:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:09:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:09:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:09:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 12:09:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 12:09:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 12:09:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 12:09:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-16 12:09:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-16 12:09:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-16 12:09:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-16 12:09:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:09:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:09:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-16 12:09:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-16 12:09:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:09:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:09:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:09:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-16 12:09:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-16 12:09:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-16 12:09:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-16 12:09:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:09:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-16 12:09:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-16 12:09:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-16 12:09:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-16 12:09:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-16 12:09:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-16 12:09:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:09:19,969 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:09:19,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:09:21,145 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:09:21,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:09:21,160 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:09:21,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:21 BoogieIcfgContainer [2022-11-16 12:09:21,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:09:21,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:09:21,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:09:21,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:09:21,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:16" (1/3) ... [2022-11-16 12:09:21,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a44d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:21, skipping insertion in model container [2022-11-16 12:09:21,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:19" (2/3) ... [2022-11-16 12:09:21,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a44d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:21, skipping insertion in model container [2022-11-16 12:09:21,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:21" (3/3) ... [2022-11-16 12:09:21,177 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-11-16 12:09:21,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:09:21,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:09:21,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:09:21,278 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;@1dff3355, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:09:21,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:09:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 103 states have (on average 1.203883495145631) internal successors, (124), 104 states have internal predecessors, (124), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-16 12:09:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 12:09:21,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:21,297 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:21,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1276829709, now seen corresponding path program 1 times [2022-11-16 12:09:21,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:21,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290182760] [2022-11-16 12:09:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:09:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:09:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:09:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:09:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:09:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:09:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:09:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 12:09:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:09:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:09:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:09:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:09:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-16 12:09:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:22,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290182760] [2022-11-16 12:09:22,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290182760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:22,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:22,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:22,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59261464] [2022-11-16 12:09:22,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:22,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:09:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:09:22,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:09:22,362 INFO L87 Difference]: Start difference. First operand has 169 states, 103 states have (on average 1.203883495145631) internal successors, (124), 104 states have internal predecessors, (124), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:09:23,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:23,142 INFO L93 Difference]: Finished difference Result 364 states and 532 transitions. [2022-11-16 12:09:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:09:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-11-16 12:09:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:23,155 INFO L225 Difference]: With dead ends: 364 [2022-11-16 12:09:23,155 INFO L226 Difference]: Without dead ends: 197 [2022-11-16 12:09:23,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:09:23,163 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 112 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:23,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 201 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:09:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-16 12:09:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 164. [2022-11-16 12:09:23,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 99 states have (on average 1.1818181818181819) internal successors, (117), 100 states have internal predecessors, (117), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-16 12:09:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 212 transitions. [2022-11-16 12:09:23,226 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 212 transitions. Word has length 84 [2022-11-16 12:09:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 212 transitions. [2022-11-16 12:09:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:09:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 212 transitions. [2022-11-16 12:09:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 12:09:23,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:23,235 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:23,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:09:23,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:23,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1354789231, now seen corresponding path program 1 times [2022-11-16 12:09:23,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:23,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100896881] [2022-11-16 12:09:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:09:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:09:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:09:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 12:09:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 12:09:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:09:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:09:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 12:09:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:09:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:09:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:09:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:09:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-16 12:09:23,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:23,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100896881] [2022-11-16 12:09:23,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100896881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:09:23,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628542534] [2022-11-16 12:09:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:23,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:23,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:23,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:24,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:09:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:24,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:09:24,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-16 12:09:24,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:09:24,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628542534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:24,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:09:24,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-16 12:09:24,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754254171] [2022-11-16 12:09:24,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:24,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:24,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:24,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:09:24,651 INFO L87 Difference]: Start difference. First operand 164 states and 212 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-16 12:09:24,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:24,949 INFO L93 Difference]: Finished difference Result 293 states and 387 transitions. [2022-11-16 12:09:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:09:24,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-11-16 12:09:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:24,952 INFO L225 Difference]: With dead ends: 293 [2022-11-16 12:09:24,952 INFO L226 Difference]: Without dead ends: 166 [2022-11-16 12:09:24,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:09:24,954 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 223 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:24,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 628 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:09:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-16 12:09:24,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-16 12:09:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2022-11-16 12:09:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2022-11-16 12:09:24,976 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 84 [2022-11-16 12:09:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:24,976 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2022-11-16 12:09:24,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-16 12:09:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2022-11-16 12:09:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 12:09:24,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:24,980 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:24,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:25,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:25,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1275658481, now seen corresponding path program 1 times [2022-11-16 12:09:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692489985] [2022-11-16 12:09:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:25,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:25,277 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:09:25,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488206645] [2022-11-16 12:09:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:25,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:25,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:09:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:25,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:09:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-16 12:09:25,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:09:25,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:25,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692489985] [2022-11-16 12:09:25,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:09:25,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488206645] [2022-11-16 12:09:25,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488206645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:25,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:25,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:09:25,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66595426] [2022-11-16 12:09:25,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:25,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:09:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:25,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:09:25,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:09:25,891 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:09:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:26,343 INFO L93 Difference]: Finished difference Result 285 states and 376 transitions. [2022-11-16 12:09:26,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:09:26,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-11-16 12:09:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:26,346 INFO L225 Difference]: With dead ends: 285 [2022-11-16 12:09:26,346 INFO L226 Difference]: Without dead ends: 166 [2022-11-16 12:09:26,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:09:26,348 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 229 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:26,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 849 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:09:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-16 12:09:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-16 12:09:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2022-11-16 12:09:26,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2022-11-16 12:09:26,367 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 99 [2022-11-16 12:09:26,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:26,367 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2022-11-16 12:09:26,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:09:26,368 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2022-11-16 12:09:26,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:09:26,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:26,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:26,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:09:26,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:26,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash -170213077, now seen corresponding path program 2 times [2022-11-16 12:09:26,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:26,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538483390] [2022-11-16 12:09:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:26,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:26,655 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:09:26,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118577228] [2022-11-16 12:09:26,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:09:26,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:26,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:26,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:26,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:09:27,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:09:27,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:09:27,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:09:27,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-16 12:09:27,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:09:27,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:27,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538483390] [2022-11-16 12:09:27,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:09:27,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118577228] [2022-11-16 12:09:27,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118577228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:27,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:27,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:09:27,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020408446] [2022-11-16 12:09:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:27,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:09:27,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:27,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:09:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:09:27,776 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:09:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:28,321 INFO L93 Difference]: Finished difference Result 282 states and 368 transitions. [2022-11-16 12:09:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:09:28,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2022-11-16 12:09:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:28,324 INFO L225 Difference]: With dead ends: 282 [2022-11-16 12:09:28,324 INFO L226 Difference]: Without dead ends: 164 [2022-11-16 12:09:28,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:09:28,326 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 231 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:28,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1077 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:09:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-16 12:09:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-16 12:09:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 100 states have internal predecessors, (116), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-16 12:09:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2022-11-16 12:09:28,344 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 114 [2022-11-16 12:09:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:28,344 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2022-11-16 12:09:28,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:09:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2022-11-16 12:09:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 12:09:28,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:28,347 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:28,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 12:09:28,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:28,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1405660739, now seen corresponding path program 1 times [2022-11-16 12:09:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:28,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729363936] [2022-11-16 12:09:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:28,638 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:09:28,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287304350] [2022-11-16 12:09:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:28,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:09:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:28,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:09:28,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f2509f-0192-42cb-a7e7-fb82ff1a91bc/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:09:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:29,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 304 conjunts are in the unsatisfiable core [2022-11-16 12:09:29,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:09:29,615 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 [2022-11-16 12:09:30,010 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 6 treesize of output 5 [2022-11-16 12:09:30,493 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-16 12:09:30,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-11-16 12:09:30,886 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-16 12:09:30,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 30 [2022-11-16 12:09:33,232 INFO L321 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-11-16 12:09:33,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 174 treesize of output 315 [2022-11-16 12:09:33,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:33,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:33,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:33,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 172 [2022-11-16 12:09:41,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:41,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2022-11-16 12:09:41,589 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 19 treesize of output 17 [2022-11-16 12:09:42,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:42,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2022-11-16 12:09:42,190 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 19 treesize of output 17 [2022-11-16 12:09:42,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:09:42,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2022-11-16 12:09:42,272 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 19 treesize of output 17 [2022-11-16 12:09:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:42,998 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 12:09:42,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 63 [2022-11-16 12:09:43,016 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 19 treesize of output 17 [2022-11-16 12:09:43,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 12:09:43,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,218 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 12:09:43,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 63 [2022-11-16 12:09:43,236 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 19 treesize of output 17 [2022-11-16 12:09:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 12:09:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,861 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 12:09:43,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 63 [2022-11-16 12:09:43,887 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 19 treesize of output 17 [2022-11-16 12:09:43,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:43,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 12:09:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:44,432 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 12:09:44,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 63 [2022-11-16 12:09:44,469 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 19 treesize of output 17 [2022-11-16 12:09:44,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:44,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:44,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-16 12:09:44,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:44,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:44,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2022-11-16 12:09:44,890 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 19 treesize of output 17 [2022-11-16 12:09:45,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:09:45,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2022-11-16 12:09:45,791 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 19 treesize of output 17 [2022-11-16 12:10:51,092 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:10:51,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 3 [2022-11-16 12:10:51,203 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 12:10:51,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 7 [2022-11-16 12:10:51,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-16 12:10:51,297 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 12:10:51,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 3 [2022-11-16 12:10:51,623 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:10:51,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 3 [2022-11-16 12:10:51,626 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 12:10:51,757 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:10:51,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 3 [2022-11-16 12:10:51,916 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 12:10:51,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 7 [2022-11-16 12:11:34,334 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 12:11:34,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 9 [2022-11-16 12:11:35,143 INFO L321 Elim1Store]: treesize reduction 305, result has 22.4 percent of original size [2022-11-16 12:11:35,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 178 treesize of output 276 [2022-11-16 12:11:54,098 INFO L321 Elim1Store]: treesize reduction 253, result has 10.6 percent of original size [2022-11-16 12:11:54,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 18 case distinctions, treesize of input 95 treesize of output 51 [2022-11-16 12:11:54,329 INFO L321 Elim1Store]: treesize reduction 363, result has 8.6 percent of original size [2022-11-16 12:11:54,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 19 case distinctions, treesize of input 95 treesize of output 55 [2022-11-16 12:11:54,636 INFO L321 Elim1Store]: treesize reduction 398, result has 7.9 percent of original size [2022-11-16 12:11:54,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 20 case distinctions, treesize of input 95 treesize of output 55 [2022-11-16 12:11:55,241 INFO L321 Elim1Store]: treesize reduction 273, result has 11.1 percent of original size [2022-11-16 12:11:55,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 95 treesize of output 55 [2022-11-16 12:11:55,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:11:55,593 INFO L321 Elim1Store]: treesize reduction 263, result has 1.9 percent of original size [2022-11-16 12:11:55,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:11:55,791 INFO L321 Elim1Store]: treesize reduction 246, result has 2.0 percent of original size [2022-11-16 12:11:55,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:11:55,997 INFO L321 Elim1Store]: treesize reduction 246, result has 2.0 percent of original size [2022-11-16 12:11:55,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:11:56,175 INFO L321 Elim1Store]: treesize reduction 246, result has 2.0 percent of original size [2022-11-16 12:11:56,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:11:56,467 INFO L321 Elim1Store]: treesize reduction 180, result has 2.7 percent of original size [2022-11-16 12:11:56,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 80 treesize of output 24 [2022-11-16 12:11:56,559 INFO L321 Elim1Store]: treesize reduction 159, result has 3.0 percent of original size [2022-11-16 12:11:56,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:11:56,903 INFO L321 Elim1Store]: treesize reduction 191, result has 2.6 percent of original size [2022-11-16 12:11:56,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 90 treesize of output 24 [2022-11-16 12:12:01,779 INFO L321 Elim1Store]: treesize reduction 508, result has 24.5 percent of original size [2022-11-16 12:12:01,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 307 treesize of output 671