./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:05:12,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:05:12,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:05:12,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:05:12,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:05:12,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:05:12,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:05:12,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:05:12,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:05:12,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:05:12,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:05:12,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:05:12,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:05:12,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:05:12,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:05:12,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:05:12,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:05:12,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:05:12,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:05:12,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:05:12,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:05:12,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:05:12,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:05:12,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:05:12,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:05:12,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:05:12,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:05:12,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:05:12,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:05:12,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:05:12,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:05:12,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:05:12,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:05:12,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:05:12,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:05:12,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:05:12,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:05:12,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:05:12,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:05:12,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:05:12,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:05:12,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:05:12,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:05:12,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:05:12,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:05:12,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:05:12,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:05:12,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:05:12,887 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:05:12,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:05:12,888 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:05:12,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:05:12,889 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:05:12,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:05:12,889 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:05:12,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:05:12,890 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:05:12,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:05:12,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:05:12,890 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:05:12,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:05:12,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:05:12,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:05:12,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:05:12,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:05:12,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:05:12,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:12,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:05:12,894 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:05:12,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:05:12,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:05:12,894 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:05:12,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:05:12,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:05:12,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:05:12,895 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_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2022-11-23 14:05:13,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:05:13,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:05:13,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:05:13,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:05:13,192 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:05:13,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2022-11-23 14:05:16,204 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:05:16,979 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:05:16,980 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2022-11-23 14:05:17,034 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/data/a8cac6c48/2370f54e3329425e8611747887ca84d8/FLAG08b720850 [2022-11-23 14:05:17,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/data/a8cac6c48/2370f54e3329425e8611747887ca84d8 [2022-11-23 14:05:17,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:05:17,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:05:17,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:17,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:05:17,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:05:17,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:17" (1/1) ... [2022-11-23 14:05:17,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ba50c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:17, skipping insertion in model container [2022-11-23 14:05:17,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:17" (1/1) ... [2022-11-23 14:05:17,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:05:17,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:17,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2022-11-23 14:05:17,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2022-11-23 14:05:19,193 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,194 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,194 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,195 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,197 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,212 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,213 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,215 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,216 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,218 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,219 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,220 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,220 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:19,967 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:05:19,969 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:05:19,971 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:05:19,972 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:05:19,975 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:05:19,976 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:05:19,977 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:05:19,978 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:05:19,979 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:05:19,980 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:05:20,220 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:05:20,601 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,602 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,634 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,636 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,644 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,645 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,668 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,670 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,671 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,672 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,672 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,673 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,674 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:20,782 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:20,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2022-11-23 14:05:20,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2022-11-23 14:05:20,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,854 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,860 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,862 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,864 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,864 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,868 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,869 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,869 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,870 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:20,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:05:20,902 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:05:20,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:05:20,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:05:20,905 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:05:20,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:05:20,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:05:20,907 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:05:20,908 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:05:20,908 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:05:20,946 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:05:21,144 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,145 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,154 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,155 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,159 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,160 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,176 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,177 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,178 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,178 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,179 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,179 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,180 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:05:21,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:21,515 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:21,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21 WrapperNode [2022-11-23 14:05:21,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:21,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:21,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:21,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:21,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,787 INFO L138 Inliner]: procedures = 774, calls = 2431, calls flagged for inlining = 69, calls inlined = 12, statements flattened = 621 [2022-11-23 14:05:21,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:21,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:21,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:21,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:21,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:21,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:21,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:21,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:21,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (1/1) ... [2022-11-23 14:05:21,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:21,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:21,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:21,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-23 14:05:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:05:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-23 14:05:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-23 14:05:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:05:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:05:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-23 14:05:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-23 14:05:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:05:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:05:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-23 14:05:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-23 14:05:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-23 14:05:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-23 14:05:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:05:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:05:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:05:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-23 14:05:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-23 14:05:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:05:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 14:05:21,970 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 14:05:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:05:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-23 14:05:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-23 14:05:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:05:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-23 14:05:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-23 14:05:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:05:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:05:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-23 14:05:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-23 14:05:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:05:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-23 14:05:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-23 14:05:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-23 14:05:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-23 14:05:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:22,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:22,332 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:23,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:23,694 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:23,694 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:05:23,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:23 BoogieIcfgContainer [2022-11-23 14:05:23,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:23,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:23,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:23,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:23,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:17" (1/3) ... [2022-11-23 14:05:23,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cb3caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:23, skipping insertion in model container [2022-11-23 14:05:23,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:21" (2/3) ... [2022-11-23 14:05:23,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cb3caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:23, skipping insertion in model container [2022-11-23 14:05:23,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:23" (3/3) ... [2022-11-23 14:05:23,720 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2022-11-23 14:05:23,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:23,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:05:23,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:05:23,832 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=FINITE_AUTOMATA, 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;@7880537d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:05:23,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:05:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-23 14:05:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-23 14:05:23,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:23,858 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:23,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1806303517, now seen corresponding path program 1 times [2022-11-23 14:05:23,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:23,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635778828] [2022-11-23 14:05:23,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:23,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:24,256 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:05:24,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024948577] [2022-11-23 14:05:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:24,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:24,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:24,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:24,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:05:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:25,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:05:25,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-23 14:05:25,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:05:25,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:25,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635778828] [2022-11-23 14:05:25,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:05:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024948577] [2022-11-23 14:05:25,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024948577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:25,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:25,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:05:25,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726756871] [2022-11-23 14:05:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:25,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:05:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:25,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:05:25,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:05:25,211 INFO L87 Difference]: Start difference. First operand has 101 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:05:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:25,406 INFO L93 Difference]: Finished difference Result 136 states and 174 transitions. [2022-11-23 14:05:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:05:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 100 [2022-11-23 14:05:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:25,421 INFO L225 Difference]: With dead ends: 136 [2022-11-23 14:05:25,421 INFO L226 Difference]: Without dead ends: 99 [2022-11-23 14:05:25,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:05:25,432 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:25,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:05:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-23 14:05:25,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-23 14:05:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 53 states have internal predecessors, (60), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-23 14:05:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 123 transitions. [2022-11-23 14:05:25,500 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 123 transitions. Word has length 100 [2022-11-23 14:05:25,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:25,503 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 123 transitions. [2022-11-23 14:05:25,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:05:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2022-11-23 14:05:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-23 14:05:25,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:25,515 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:25,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:05:25,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:05:25,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:25,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 493483735, now seen corresponding path program 1 times [2022-11-23 14:05:25,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:25,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810573372] [2022-11-23 14:05:25,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:25,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:25,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:05:25,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588972632] [2022-11-23 14:05:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:25,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:25,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:25,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:25,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:05:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:26,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:05:26,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 14:05:26,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:05:26,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:26,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810573372] [2022-11-23 14:05:26,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:05:26,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588972632] [2022-11-23 14:05:26,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588972632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:26,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:05:26,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:05:26,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094535886] [2022-11-23 14:05:26,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:26,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:05:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:05:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:05:26,728 INFO L87 Difference]: Start difference. First operand 99 states and 123 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:05:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:28,152 INFO L93 Difference]: Finished difference Result 192 states and 239 transitions. [2022-11-23 14:05:28,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:05:28,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 105 [2022-11-23 14:05:28,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:28,157 INFO L225 Difference]: With dead ends: 192 [2022-11-23 14:05:28,157 INFO L226 Difference]: Without dead ends: 103 [2022-11-23 14:05:28,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:05:28,160 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 1 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:28,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 407 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 14:05:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-23 14:05:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-23 14:05:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 56 states have internal predecessors, (63), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2022-11-23 14:05:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2022-11-23 14:05:28,189 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 105 [2022-11-23 14:05:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:28,196 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2022-11-23 14:05:28,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:05:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2022-11-23 14:05:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-23 14:05:28,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:28,203 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:28,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:05:28,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-23 14:05:28,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -774970137, now seen corresponding path program 1 times [2022-11-23 14:05:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:28,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778924484] [2022-11-23 14:05:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:05:31,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:31,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778924484] [2022-11-23 14:05:31,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778924484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:05:31,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648953815] [2022-11-23 14:05:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:31,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:31,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:31,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:31,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:05:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:31,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-23 14:05:31,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:32,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:05:33,163 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:05:33,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-23 14:05:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-23 14:05:33,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:05:33,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648953815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:33,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:05:33,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 18 [2022-11-23 14:05:33,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850238416] [2022-11-23 14:05:33,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:33,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:05:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:05:33,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-23 14:05:33,903 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 7 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-23 14:05:39,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:05:41,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:43,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:46,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:48,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:50,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:52,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:54,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:05:57,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:05:59,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:01,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:03,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:05,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:07,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:09,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:11,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:13,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:16,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:17,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:06:17,121 INFO L93 Difference]: Finished difference Result 238 states and 291 transitions. [2022-11-23 14:06:17,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 14:06:17,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 7 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) Word has length 113 [2022-11-23 14:06:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:06:17,126 INFO L225 Difference]: With dead ends: 238 [2022-11-23 14:06:17,126 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 14:06:17,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 93 SyntacticMatches, 15 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:06:17,128 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 146 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 146 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:06:17,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 530 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1283 Invalid, 20 Unknown, 0 Unchecked, 42.6s Time] [2022-11-23 14:06:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 14:06:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2022-11-23 14:06:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 118 states have internal predecessors, (131), 58 states have call successors, (58), 31 states have call predecessors, (58), 35 states have return successors, (67), 56 states have call predecessors, (67), 56 states have call successors, (67) [2022-11-23 14:06:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 256 transitions. [2022-11-23 14:06:17,165 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 256 transitions. Word has length 113 [2022-11-23 14:06:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:06:17,166 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 256 transitions. [2022-11-23 14:06:17,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 7 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-23 14:06:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 256 transitions. [2022-11-23 14:06:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-23 14:06:17,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:17,169 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:06:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:06:17,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:17,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:06:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1727892621, now seen corresponding path program 1 times [2022-11-23 14:06:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:06:17,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462869510] [2022-11-23 14:06:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:06:17,503 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:06:17,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960938546] [2022-11-23 14:06:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:17,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:17,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:17,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:06:17,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:06:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:06:18,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2521 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-23 14:06:18,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:06:18,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:06:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-23 14:06:18,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:06:18,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:06:18,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462869510] [2022-11-23 14:06:18,797 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:06:18,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960938546] [2022-11-23 14:06:18,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960938546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:06:18,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:06:18,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:06:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144177940] [2022-11-23 14:06:18,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:06:18,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:06:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:06:18,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:06:18,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:06:18,800 INFO L87 Difference]: Start difference. First operand 206 states and 256 transitions. Second operand has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-23 14:06:23,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:25,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:27,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:30,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:32,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:34,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:36,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:38,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:40,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:42,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:44,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:46,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:47,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:06:47,031 INFO L93 Difference]: Finished difference Result 377 states and 459 transitions. [2022-11-23 14:06:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:06:47,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 118 [2022-11-23 14:06:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:06:47,035 INFO L225 Difference]: With dead ends: 377 [2022-11-23 14:06:47,035 INFO L226 Difference]: Without dead ends: 224 [2022-11-23 14:06:47,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:06:47,037 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 92 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 34 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:06:47,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 634 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 439 Invalid, 12 Unknown, 0 Unchecked, 28.0s Time] [2022-11-23 14:06:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-23 14:06:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2022-11-23 14:06:47,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 121 states have (on average 1.165289256198347) internal successors, (141), 128 states have internal predecessors, (141), 60 states have call successors, (60), 35 states have call predecessors, (60), 41 states have return successors, (70), 59 states have call predecessors, (70), 58 states have call successors, (70) [2022-11-23 14:06:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 271 transitions. [2022-11-23 14:06:47,074 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 271 transitions. Word has length 118 [2022-11-23 14:06:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:06:47,075 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 271 transitions. [2022-11-23 14:06:47,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-23 14:06:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 271 transitions. [2022-11-23 14:06:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-23 14:06:47,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:47,078 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:06:47,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 14:06:47,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:47,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:06:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:47,289 INFO L85 PathProgramCache]: Analyzing trace with hash 699429012, now seen corresponding path program 1 times [2022-11-23 14:06:47,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:06:47,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430767313] [2022-11-23 14:06:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:47,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:06:47,377 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:06:47,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79422548] [2022-11-23 14:06:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:47,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:47,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:06:47,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:06:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:06:48,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2545 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 14:06:48,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:06:48,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:06:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-23 14:06:48,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:06:48,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:06:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430767313] [2022-11-23 14:06:48,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:06:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79422548] [2022-11-23 14:06:48,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79422548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:06:48,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:06:48,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:06:48,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848393019] [2022-11-23 14:06:48,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:06:48,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:06:48,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:06:48,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:06:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:06:48,451 INFO L87 Difference]: Start difference. First operand 223 states and 271 transitions. Second operand has 12 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-23 14:06:53,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:56,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:06:58,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:00,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:02,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:04,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:06,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:08,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:10,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:13,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:15,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:07:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:15,250 INFO L93 Difference]: Finished difference Result 435 states and 526 transitions. [2022-11-23 14:07:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:07:15,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 124 [2022-11-23 14:07:15,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:15,254 INFO L225 Difference]: With dead ends: 435 [2022-11-23 14:07:15,254 INFO L226 Difference]: Without dead ends: 269 [2022-11-23 14:07:15,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-11-23 14:07:15,257 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 96 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 38 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:15,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 568 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 604 Invalid, 11 Unknown, 0 Unchecked, 26.5s Time] [2022-11-23 14:07:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-23 14:07:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 262. [2022-11-23 14:07:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 142 states have (on average 1.1619718309859155) internal successors, (165), 150 states have internal predecessors, (165), 71 states have call successors, (71), 41 states have call predecessors, (71), 48 states have return successors, (83), 70 states have call predecessors, (83), 69 states have call successors, (83) [2022-11-23 14:07:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 319 transitions. [2022-11-23 14:07:15,300 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 319 transitions. Word has length 124 [2022-11-23 14:07:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:15,301 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 319 transitions. [2022-11-23 14:07:15,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-23 14:07:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 319 transitions. [2022-11-23 14:07:15,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-23 14:07:15,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:15,304 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:15,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:07:15,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:15,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash 536078822, now seen corresponding path program 1 times [2022-11-23 14:07:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930454143] [2022-11-23 14:07:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:15,657 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:07:15,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071163490] [2022-11-23 14:07:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:15,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:15,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:15,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:07:15,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 14:07:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:16,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 2574 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 14:07:16,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:07:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-23 14:07:16,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:07:16,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:16,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930454143] [2022-11-23 14:07:16,394 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:07:16,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071163490] [2022-11-23 14:07:16,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071163490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:16,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:16,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:07:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676399204] [2022-11-23 14:07:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:16,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:16,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:16,396 INFO L87 Difference]: Start difference. First operand 262 states and 319 transitions. Second operand has 6 states, 3 states have (on average 18.333333333333332) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 14:07:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:17,619 INFO L93 Difference]: Finished difference Result 341 states and 416 transitions. [2022-11-23 14:07:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 3 states have (on average 18.333333333333332) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 128 [2022-11-23 14:07:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:17,623 INFO L225 Difference]: With dead ends: 341 [2022-11-23 14:07:17,623 INFO L226 Difference]: Without dead ends: 264 [2022-11-23 14:07:17,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:17,625 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:17,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 14:07:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-23 14:07:17,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-11-23 14:07:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 143 states have (on average 1.1468531468531469) internal successors, (164), 152 states have internal predecessors, (164), 71 states have call successors, (71), 41 states have call predecessors, (71), 49 states have return successors, (85), 70 states have call predecessors, (85), 69 states have call successors, (85) [2022-11-23 14:07:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 320 transitions. [2022-11-23 14:07:17,666 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 320 transitions. Word has length 128 [2022-11-23 14:07:17,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:17,667 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 320 transitions. [2022-11-23 14:07:17,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 3 states have (on average 18.333333333333332) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 14:07:17,667 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 320 transitions. [2022-11-23 14:07:17,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-23 14:07:17,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:17,670 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:17,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:07:17,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:17,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash 761576757, now seen corresponding path program 1 times [2022-11-23 14:07:17,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:17,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54573340] [2022-11-23 14:07:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:17,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-23 14:07:23,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:23,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54573340] [2022-11-23 14:07:23,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54573340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:07:23,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357196723] [2022-11-23 14:07:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:23,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:23,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:23,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:07:23,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:07:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:24,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-23 14:07:24,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:07:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-23 14:07:24,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:07:24,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357196723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:24,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:07:24,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2022-11-23 14:07:24,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600376161] [2022-11-23 14:07:24,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:24,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:24,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:24,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:07:24,780 INFO L87 Difference]: Start difference. First operand 264 states and 320 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-11-23 14:07:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:25,777 INFO L93 Difference]: Finished difference Result 469 states and 563 transitions. [2022-11-23 14:07:25,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:25,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 134 [2022-11-23 14:07:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:25,780 INFO L225 Difference]: With dead ends: 469 [2022-11-23 14:07:25,780 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 14:07:25,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:07:25,782 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 16 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:25,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 329 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 14:07:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 14:07:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-11-23 14:07:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 139 states have (on average 1.143884892086331) internal successors, (159), 147 states have internal predecessors, (159), 68 states have call successors, (68), 40 states have call predecessors, (68), 48 states have return successors, (81), 68 states have call predecessors, (81), 66 states have call successors, (81) [2022-11-23 14:07:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 308 transitions. [2022-11-23 14:07:25,854 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 308 transitions. Word has length 134 [2022-11-23 14:07:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:25,855 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 308 transitions. [2022-11-23 14:07:25,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-11-23 14:07:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 308 transitions. [2022-11-23 14:07:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-23 14:07:25,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:25,859 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:25,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:07:26,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:26,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:26,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1291106323, now seen corresponding path program 1 times [2022-11-23 14:07:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:26,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360901306] [2022-11-23 14:07:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:26,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:26,144 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:07:26,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432317449] [2022-11-23 14:07:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:26,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:26,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:07:26,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 14:07:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:26,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 14:07:26,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:07:29,446 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (and (not (= aws_hash_table_is_valid_~map.base 0)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset))))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)) (not (= aws_hash_table_is_valid_~map.base 0)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)) (not (= aws_hash_table_is_valid_~map.offset 0)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (and (not (= aws_hash_table_is_valid_~map.offset 0)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))))) is different from true [2022-11-23 14:07:39,607 WARN L233 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:49,755 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-23 14:07:49,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:07:49,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:49,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360901306] [2022-11-23 14:07:49,843 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:07:49,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432317449] [2022-11-23 14:07:49,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432317449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:49,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:49,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:07:49,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974329125] [2022-11-23 14:07:49,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:49,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:07:49,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:07:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2022-11-23 14:07:49,846 INFO L87 Difference]: Start difference. First operand 256 states and 308 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-23 14:08:02,231 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:02,836 INFO L93 Difference]: Finished difference Result 346 states and 417 transitions. [2022-11-23 14:08:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 135 [2022-11-23 14:08:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:02,840 INFO L225 Difference]: With dead ends: 346 [2022-11-23 14:08:02,840 INFO L226 Difference]: Without dead ends: 251 [2022-11-23 14:08:02,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=27, Invalid=86, Unknown=1, NotChecked=18, Total=132 [2022-11-23 14:08:02,841 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 21 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 129 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:02,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 556 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 237 Invalid, 0 Unknown, 129 Unchecked, 2.7s Time] [2022-11-23 14:08:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-23 14:08:02,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-11-23 14:08:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 136 states have (on average 1.1176470588235294) internal successors, (152), 143 states have internal predecessors, (152), 68 states have call successors, (68), 40 states have call predecessors, (68), 46 states have return successors, (79), 67 states have call predecessors, (79), 66 states have call successors, (79) [2022-11-23 14:08:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 299 transitions. [2022-11-23 14:08:02,880 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 299 transitions. Word has length 135 [2022-11-23 14:08:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:02,881 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 299 transitions. [2022-11-23 14:08:02,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-23 14:08:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 299 transitions. [2022-11-23 14:08:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-23 14:08:02,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:02,884 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:02,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-23 14:08:03,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 14:08:03,096 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1684625957, now seen corresponding path program 1 times [2022-11-23 14:08:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:03,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458472760] [2022-11-23 14:08:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:03,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:03,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:08:03,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227550026] [2022-11-23 14:08:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:03,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:03,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:08:03,171 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:08:03,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 14:08:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:03,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 2646 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-23 14:08:03,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:08:04,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:08:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 14:08:04,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:08:04,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:04,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458472760] [2022-11-23 14:08:04,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:08:04,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227550026] [2022-11-23 14:08:04,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227550026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:04,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:04,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:08:04,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811142295] [2022-11-23 14:08:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:04,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:08:04,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:08:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:04,475 INFO L87 Difference]: Start difference. First operand 251 states and 299 transitions. Second operand has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-23 14:08:07,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:08:09,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:11,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:13,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:15,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:18,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:20,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:22,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:24,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:26,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:28,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:30,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:32,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:35,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:08:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:35,075 INFO L93 Difference]: Finished difference Result 350 states and 413 transitions. [2022-11-23 14:08:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 14:08:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) Word has length 139 [2022-11-23 14:08:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:35,077 INFO L225 Difference]: With dead ends: 350 [2022-11-23 14:08:35,077 INFO L226 Difference]: Without dead ends: 240 [2022-11-23 14:08:35,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 127 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:08:35,079 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 96 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 101 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:35,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 415 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 765 Invalid, 14 Unknown, 0 Unchecked, 30.3s Time] [2022-11-23 14:08:35,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-23 14:08:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-11-23 14:08:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 131 states have (on average 1.1068702290076335) internal successors, (145), 137 states have internal predecessors, (145), 62 states have call successors, (62), 40 states have call predecessors, (62), 45 states have return successors, (72), 61 states have call predecessors, (72), 60 states have call successors, (72) [2022-11-23 14:08:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 279 transitions. [2022-11-23 14:08:35,118 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 279 transitions. Word has length 139 [2022-11-23 14:08:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:35,119 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 279 transitions. [2022-11-23 14:08:35,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 7 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-23 14:08:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 279 transitions. [2022-11-23 14:08:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 14:08:35,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:35,122 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:35,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 14:08:35,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:35,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:35,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1077344539, now seen corresponding path program 1 times [2022-11-23 14:08:35,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:35,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614145270] [2022-11-23 14:08:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:35,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:35,424 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:08:35,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692853453] [2022-11-23 14:08:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:35,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:35,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:08:35,427 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:08:35,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afda42b3-26e4-4a0b-84cc-9c900c4db44f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 14:08:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:36,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2727 conjuncts, 144 conjunts are in the unsatisfiable core [2022-11-23 14:08:36,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:08:36,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:08:36,506 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 11 treesize of output 7 [2022-11-23 14:08:36,933 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1433 Int) (v_ArrVal_1434 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1434))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1433)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-23 14:08:38,032 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1436 Int) (|aws_add_size_checked_aws_add_u64_checked_~r#1.base| Int) (v_ArrVal_1438 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_add_size_checked_aws_add_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) |c_aws_add_size_checked_#in~r#1.offset| v_ArrVal_1438)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_add_size_checked_aws_add_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) |c_aws_add_size_checked_#in~r#1.offset| v_ArrVal_1436))))) is different from true [2022-11-23 14:08:38,055 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1433 Int) (v_ArrVal_1434 Int) (v_ArrVal_1436 Int) (|aws_add_size_checked_aws_add_u64_checked_~r#1.base| Int) (v_ArrVal_1438 Int)) (and (= |c_#memory_$Pointer$.base| (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_1434)))) (store .cse0 |aws_add_size_checked_aws_add_u64_checked_~r#1.base| (store (select .cse0 |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) |c_hash_table_state_required_bytes_#in~required_bytes.offset| v_ArrVal_1436)))) (= (let ((.cse1 (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_1433)))) (store .cse1 |aws_add_size_checked_aws_add_u64_checked_~r#1.base| (store (select .cse1 |aws_add_size_checked_aws_add_u64_checked_~r#1.base|) |c_hash_table_state_required_bytes_#in~required_bytes.offset| v_ArrVal_1438))) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-23 14:08:38,130 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-23 14:08:38,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 36 [2022-11-23 14:08:38,172 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-23 14:08:38,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 37 [2022-11-23 14:08:38,822 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:08:38,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2022-11-23 14:08:38,840 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:08:38,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2022-11-23 14:08:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 45 proven. 31 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-23 14:08:40,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:08:42,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:42,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614145270] [2022-11-23 14:08:42,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:08:42,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692853453] [2022-11-23 14:08:42,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692853453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:08:42,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [528100619] [2022-11-23 14:08:42,162 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-23 14:08:42,163 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:08:42,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:08:42,176 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:08:42,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:08:45,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:46,360 INFO L217 Elim1Store]: Index analysis took 939 ms [2022-11-23 14:10:24,535 WARN L233 SmtUtils]: Spent 1.63m on a formula simplification. DAG size of input: 3135 DAG size of output: 1567 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:10:24,541 INFO L321 Elim1Store]: treesize reduction 7432, result has 25.5 percent of original size [2022-11-23 14:10:24,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19310 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 588 case distinctions, treesize of input 1009 treesize of output 3157 [2022-11-23 14:10:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:10:30,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:10:30,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19505 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 0 case distinctions, treesize of input 990 treesize of output 1579 [2022-11-23 14:14:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:07,636 INFO L217 Elim1Store]: Index analysis took 464 ms [2022-11-23 14:14:30,193 WARN L233 SmtUtils]: Spent 22.51s on a formula simplification. DAG size of input: 1776 DAG size of output: 1181 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:14:30,197 INFO L321 Elim1Store]: treesize reduction 1978, result has 47.2 percent of original size [2022-11-23 14:14:30,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19507 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 197 case distinctions, treesize of input 997 treesize of output 2370 [2022-11-23 14:14:41,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:14:42,557 INFO L217 Elim1Store]: Index analysis took 1006 ms [2022-11-23 14:15:17,532 WARN L233 SmtUtils]: Spent 34.92s on a formula simplification. DAG size of input: 2172 DAG size of output: 1185 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:15:17,535 INFO L321 Elim1Store]: treesize reduction 3546, result has 33.3 percent of original size [2022-11-23 14:15:17,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 200 select indices, 200 select index equivalence classes, 19703 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 394 case distinctions, treesize of input 1007 treesize of output 2389 [2022-11-23 14:15:47,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:15:47,880 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 6 treesize of output 5 [2022-11-23 14:15:47,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:15:47,909 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 6 treesize of output 5 [2022-11-23 14:15:47,949 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 15 treesize of output 1 [2022-11-23 14:15:47,964 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 15 treesize of output 1 [2022-11-23 14:15:47,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:15:47,986 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 15 treesize of output 1 [2022-11-23 14:15:48,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:15:48,150 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 6 treesize of output 5 [2022-11-23 14:15:48,197 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 15 treesize of output 1 [2022-11-23 14:15:48,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:15:48,212 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 15 treesize of output 1 [2022-11-23 14:15:48,220 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 15 treesize of output 1 [2022-11-23 14:15:48,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-23 14:15:48,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:15:48,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-23 14:15:48,392 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 14:15:48,394 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 12 treesize of output 14 [2022-11-23 14:15:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:56,534 INFO L217 Elim1Store]: Index analysis took 160 ms [2022-11-23 14:15:56,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-23 14:15:58,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:58,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:58,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 199 select indices, 199 select index equivalence classes, 19704 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 0 case distinctions, treesize of input 996 treesize of output 598 [2022-11-23 14:15:59,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:15:59,643 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-11-23 14:15:59,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-23 14:16:01,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:01,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:01,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:01,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 200 select indices, 200 select index equivalence classes, 19900 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 0 case distinctions, treesize of input 1001 treesize of output 601 [2022-11-23 14:16:02,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:02,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-23 14:16:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:27,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:28,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-23 14:16:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:28,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 199 select indices, 199 select index equivalence classes, 19704 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 0 case distinctions, treesize of input 996 treesize of output 598 [2022-11-23 14:16:30,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:30,343 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-11-23 14:16:30,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-23 14:16:31,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:31,825 INFO L217 Elim1Store]: Index analysis took 149 ms [2022-11-23 14:16:31,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-23 14:16:32,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:32,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:16:32,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 200 select indices, 200 select index equivalence classes, 19900 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 0 case distinctions, treesize of input 1001 treesize of output 601 [2022-11-23 14:16:57,513 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 8 treesize of output 7 [2022-11-23 14:16:57,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:16:59,927 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:16:59,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:17:00,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:17:05,411 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:17:05,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:17:05,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:17:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:10,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2022-11-23 14:17:10,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:10,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2022-11-23 14:17:11,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:11,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:11,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:11,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 202 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 49 [2022-11-23 14:17:11,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:11,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 200 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-23 14:17:12,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:12,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-23 14:17:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:41,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:41,490 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:17:41,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 31 [2022-11-23 14:17:41,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:41,967 INFO L321 Elim1Store]: treesize reduction 61, result has 22.8 percent of original size [2022-11-23 14:17:41,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 204 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 44 [2022-11-23 14:17:59,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:17:59,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:17:59,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:17:59,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:17:59,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:17:59,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:17:59,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:59,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:17:59,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-23 14:18:00,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:18:00,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:00,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:00,279 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:18:00,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 2441 treesize of output 2433 [2022-11-23 14:18:00,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:00,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:18:00,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 2426 treesize of output 2442 [2022-11-23 14:18:34,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:34,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:34,728 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:18:34,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 2441 treesize of output 2487 [2022-11-23 14:18:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:35,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:18:35,542 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:18:35,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 2426 treesize of output 2442