./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF --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 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:34:17,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:34:17,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:34:17,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:34:17,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:34:17,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:34:17,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:34:17,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:34:17,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:34:17,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:34:17,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:34:17,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:34:17,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:34:18,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:34:18,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:34:18,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:34:18,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:34:18,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:34:18,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:34:18,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:34:18,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:34:18,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:34:18,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:34:18,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:34:18,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:34:18,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:34:18,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:34:18,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:34:18,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:34:18,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:34:18,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:34:18,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:34:18,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:34:18,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:34:18,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:34:18,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:34:18,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:34:18,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:34:18,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:34:18,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:34:18,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:34:18,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:34:18,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:34:18,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:34:18,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:34:18,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:34:18,120 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:34:18,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:34:18,121 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:34:18,121 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:34:18,121 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:34:18,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:34:18,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:34:18,123 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:34:18,124 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:34:18,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:34:18,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:34:18,125 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:34:18,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:34:18,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:34:18,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:34:18,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:34:18,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:34:18,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:34:18,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:34:18,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:34:18,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:34:18,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:34:18,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:34:18,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:34:18,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:34:18,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:34:18,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:34:18,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:34:18,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:34:18,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:34:18,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:34:18,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:34:18,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:34:18,135 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 [2021-11-12 22:34:18,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:34:18,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:34:18,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:34:18,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:34:18,567 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:34:18,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-12 22:34:18,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/a838a27eb/6f1b684e18ab4fd0ac0eafe2d54f3f35/FLAG1c1c2c81f [2021-11-12 22:34:19,813 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:34:19,815 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-12 22:34:19,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/a838a27eb/6f1b684e18ab4fd0ac0eafe2d54f3f35/FLAG1c1c2c81f [2021-11-12 22:34:20,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/a838a27eb/6f1b684e18ab4fd0ac0eafe2d54f3f35 [2021-11-12 22:34:20,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:34:20,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:34:20,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:20,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:34:20,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:34:20,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:20" (1/1) ... [2021-11-12 22:34:20,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21372d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:20, skipping insertion in model container [2021-11-12 22:34:20,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:20" (1/1) ... [2021-11-12 22:34:20,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:34:20,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:34:20,819 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-12 22:34:20,829 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-12 22:34:20,866 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:34:20,875 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:34:22,217 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:22,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:34:22,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:34:22,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:34:22,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:34:22,889 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:34:22,890 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:34:22,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:34:22,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:34:22,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:34:22,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:34:23,151 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:34:23,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:23,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:34:23,679 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:34:23,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@724affb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:23, skipping insertion in model container [2021-11-12 22:34:23,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:23,680 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:34:23,683 INFO L158 Benchmark]: Toolchain (without parser) took 3529.19ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 75.0MB in the beginning and 57.8MB in the end (delta: 17.3MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2021-11-12 22:34:23,683 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:34:23,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3523.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 74.8MB in the beginning and 58.4MB in the end (delta: 16.3MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2021-11-12 22:34:23,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3523.50ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 74.8MB in the beginning and 58.4MB in the end (delta: 16.3MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF --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 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:34:26,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:34:26,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:34:26,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:34:26,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:34:26,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:34:26,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:34:26,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:34:26,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:34:26,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:34:26,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:34:26,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:34:26,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:34:26,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:34:26,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:34:26,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:34:26,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:34:26,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:34:26,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:34:26,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:34:26,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:34:26,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:34:26,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:34:26,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:34:26,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:34:26,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:34:26,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:34:26,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:34:26,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:34:26,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:34:26,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:34:26,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:34:26,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:34:26,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:34:26,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:34:26,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:34:26,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:34:26,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:34:26,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:34:26,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:34:26,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:34:26,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:34:26,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:34:26,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:34:26,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:34:26,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:34:26,482 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:34:26,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:34:26,483 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:34:26,483 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:34:26,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:34:26,484 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:34:26,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:34:26,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:34:26,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:34:26,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:34:26,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:34:26,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:34:26,488 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:34:26,488 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:34:26,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:34:26,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:34:26,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:34:26,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:34:26,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:34:26,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:34:26,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:34:26,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:34:26,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:34:26,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:34:26,491 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:34:26,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:34:26,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:34:26,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:34:26,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:34:26,493 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846a565d6a742f245ca362c4e2fb63bb4d14b5e5473527f5da84e078cffb2df4 [2021-11-12 22:34:26,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:34:26,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:34:26,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:34:27,000 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:34:27,003 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:34:27,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-12 22:34:27,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/ff10cc579/bbd6d36c032f4e6bb1856b27627bd665/FLAG30b136830 [2021-11-12 22:34:28,289 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:34:28,291 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i [2021-11-12 22:34:28,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/ff10cc579/bbd6d36c032f4e6bb1856b27627bd665/FLAG30b136830 [2021-11-12 22:34:28,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/data/ff10cc579/bbd6d36c032f4e6bb1856b27627bd665 [2021-11-12 22:34:28,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:34:28,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:34:28,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:28,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:34:28,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:34:28,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:28" (1/1) ... [2021-11-12 22:34:28,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d976592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:28, skipping insertion in model container [2021-11-12 22:34:28,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:34:28" (1/1) ... [2021-11-12 22:34:28,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:34:28,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:34:29,182 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-12 22:34:29,200 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-12 22:34:29,243 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:34:29,254 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:34:30,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:30,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:31,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:34:31,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:34:31,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:34:31,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:34:31,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:34:31,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:34:31,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:34:31,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:34:31,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:34:31,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:34:31,953 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:34:32,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,464 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,483 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:34:32,624 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:34:32,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:34:32,758 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-12 22:34:32,759 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-12 22:34:32,761 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:34:32,767 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:34:32,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:32,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:34:32,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:34:32,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:34:32,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:34:32,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:34:32,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:34:32,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:34:32,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:34:32,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:34:32,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:34:32,986 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:34:33,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:34:33,310 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:34:33,337 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4504,4517] [2021-11-12 22:34:33,344 WARN L228 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_e5ce0169-13ac-44bd-990b-b1046a60e1f0/sv-benchmarks/c/aws-c-common/aws_hash_table_get_entry_count_harness.i[4564,4577] [2021-11-12 22:34:33,346 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:34:33,348 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:34:33,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,441 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:34:33,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:34:33,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:34:33,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:34:33,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:34:33,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:34:33,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:34:33,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:34:33,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:34:33,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:34:33,526 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:34:33,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:34:33,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:34:34,340 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:34:34,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34 WrapperNode [2021-11-12 22:34:34,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:34:34,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:34:34,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:34:34,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:34:34,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:34:34,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:34:34,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:34:34,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:34:34,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:34:34,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:34:34,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:34:34,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:34:34,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (1/1) ... [2021-11-12 22:34:34,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:34:34,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:34:34,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:34:34,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:34:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 22:34:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:34:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:34:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:34:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:34:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-12 22:34:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-12 22:34:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:34:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:34:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:34:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:34:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:34:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:34:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:34:34,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:34:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 22:34:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:34:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 22:34:34,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 22:34:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:34:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:34:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:34:34,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:34:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-12 22:34:34,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-12 22:34:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:34:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:34:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:34:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2021-11-12 22:34:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2021-11-12 22:34:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-12 22:34:34,980 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-12 22:34:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:34:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:34:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:34:34,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:34:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:34:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:34:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-12 22:34:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-12 22:34:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:34:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:34:34,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:34:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 22:34:34,983 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 22:34:50,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:34:50,202 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:34:50,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:34:50 BoogieIcfgContainer [2021-11-12 22:34:50,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:34:50,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:34:50,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:34:50,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:34:50,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:34:28" (1/3) ... [2021-11-12 22:34:50,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbebcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:34:50, skipping insertion in model container [2021-11-12 22:34:50,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:34:34" (2/3) ... [2021-11-12 22:34:50,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbebcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:34:50, skipping insertion in model container [2021-11-12 22:34:50,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:34:50" (3/3) ... [2021-11-12 22:34:50,216 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_get_entry_count_harness.i [2021-11-12 22:34:50,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:34:50,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:34:50,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:34:50,327 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:34:50,328 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:34:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 70 states have internal predecessors, (80), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-12 22:34:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-12 22:34:50,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:34:50,376 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 22:34:50,377 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:34:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:34:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1837269808, now seen corresponding path program 1 times [2021-11-12 22:34:50,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:34:50,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531175971] [2021-11-12 22:34:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:34:50,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:34:50,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:34:50,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:34:50,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:34:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:34:56,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:34:56,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:34:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 22:34:56,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-12 22:34:57,467 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:34:57,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531175971] [2021-11-12 22:34:57,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531175971] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:34:57,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:34:57,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:34:57,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651445222] [2021-11-12 22:34:57,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:34:57,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:34:57,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:34:57,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:34:57,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:34:57,514 INFO L87 Difference]: Start difference. First operand has 111 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 70 states have internal predecessors, (80), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-12 22:34:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:34:57,715 INFO L93 Difference]: Finished difference Result 218 states and 273 transitions. [2021-11-12 22:34:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:34:57,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2021-11-12 22:34:57,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:34:57,750 INFO L225 Difference]: With dead ends: 218 [2021-11-12 22:34:57,751 INFO L226 Difference]: Without dead ends: 109 [2021-11-12 22:34:57,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:34:57,768 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:34:57,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 508 Invalid, 11 Unknown, 0 Unchecked, 10.23ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 90.70ms Time] [2021-11-12 22:34:57,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-12 22:34:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-12 22:34:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 68 states have internal predecessors, (76), 26 states have call successors, (26), 14 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2021-11-12 22:34:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2021-11-12 22:34:57,877 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 102 [2021-11-12 22:34:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:34:57,880 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2021-11-12 22:34:57,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-12 22:34:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2021-11-12 22:34:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 22:34:57,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:34:57,894 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 22:34:57,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:34:58,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:34:58,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:34:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:34:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1053923504, now seen corresponding path program 1 times [2021-11-12 22:34:58,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:34:58,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337410884] [2021-11-12 22:34:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:34:58,110 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:34:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:34:58,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:34:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:35:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:03,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:35:03,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-12 22:35:03,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 22:35:04,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:04,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337410884] [2021-11-12 22:35:04,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337410884] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:35:04,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:35:04,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:35:04,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055139088] [2021-11-12 22:35:04,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:04,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:35:04,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:04,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:35:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:35:04,781 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:35:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:05,066 INFO L93 Difference]: Finished difference Result 208 states and 243 transitions. [2021-11-12 22:35:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:35:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 114 [2021-11-12 22:35:05,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:05,072 INFO L225 Difference]: With dead ends: 208 [2021-11-12 22:35:05,073 INFO L226 Difference]: Without dead ends: 111 [2021-11-12 22:35:05,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:35:05,076 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 2 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 191.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:05,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 557 Invalid, 57 Unknown, 0 Unchecked, 8.50ms Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 212.79ms Time] [2021-11-12 22:35:05,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-12 22:35:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-12 22:35:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 70 states have internal predecessors, (77), 26 states have call successors, (26), 14 states have call predecessors, (26), 16 states have return successors, (27), 26 states have call predecessors, (27), 25 states have call successors, (27) [2021-11-12 22:35:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2021-11-12 22:35:05,097 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 114 [2021-11-12 22:35:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:05,098 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2021-11-12 22:35:05,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:35:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2021-11-12 22:35:05,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-12 22:35:05,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:05,102 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 22:35:05,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:05,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:05,303 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:05,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash -314306709, now seen corresponding path program 1 times [2021-11-12 22:35:05,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:05,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245511647] [2021-11-12 22:35:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:05,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:05,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:05,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:05,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:35:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:10,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:35:10,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:11,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-12 22:35:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 22:35:12,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:13,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-12 22:35:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:35:14,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:14,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245511647] [2021-11-12 22:35:14,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245511647] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:14,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:14,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 15 [2021-11-12 22:35:14,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797964792] [2021-11-12 22:35:14,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:14,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:35:14,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:14,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:35:14,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:35:14,071 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-12 22:35:16,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:18,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:20,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:22,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:23,935 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2021-11-12 22:35:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 22:35:23,938 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 119 [2021-11-12 22:35:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:23,942 INFO L225 Difference]: With dead ends: 219 [2021-11-12 22:35:23,942 INFO L226 Difference]: Without dead ends: 128 [2021-11-12 22:35:23,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:35:23,945 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 26 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9534.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.88ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 9724.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:23,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1188 Invalid, 140 Unknown, 0 Unchecked, 10.88ms Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 4 Unknown, 60 Unchecked, 9724.66ms Time] [2021-11-12 22:35:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-12 22:35:23,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-11-12 22:35:23,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 78 states have (on average 1.141025641025641) internal successors, (89), 81 states have internal predecessors, (89), 26 states have call successors, (26), 15 states have call predecessors, (26), 18 states have return successors, (29), 26 states have call predecessors, (29), 25 states have call successors, (29) [2021-11-12 22:35:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2021-11-12 22:35:23,968 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 119 [2021-11-12 22:35:23,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:23,969 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2021-11-12 22:35:23,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-12 22:35:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2021-11-12 22:35:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-12 22:35:23,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:23,973 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 22:35:24,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:24,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:24,195 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1952074477, now seen corresponding path program 1 times [2021-11-12 22:35:24,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:24,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947731172] [2021-11-12 22:35:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:24,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:24,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:24,200 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:24,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:35:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:28,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:35:28,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 22:35:29,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:35:29,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:29,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947731172] [2021-11-12 22:35:29,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947731172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:29,962 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:29,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:35:29,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937845697] [2021-11-12 22:35:29,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:29,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:35:29,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:29,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:35:29,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:35:29,965 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 22:35:30,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:30,077 INFO L93 Difference]: Finished difference Result 224 states and 260 transitions. [2021-11-12 22:35:30,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:35:30,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 119 [2021-11-12 22:35:30,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:30,086 INFO L225 Difference]: With dead ends: 224 [2021-11-12 22:35:30,086 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 22:35:30,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:35:30,088 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 17 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.03ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:30,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 454 Invalid, 20 Unknown, 0 Unchecked, 3.03ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 96.57ms Time] [2021-11-12 22:35:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 22:35:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-12 22:35:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 76 states have internal predecessors, (82), 26 states have call successors, (26), 15 states have call predecessors, (26), 17 states have return successors, (28), 26 states have call predecessors, (28), 25 states have call successors, (28) [2021-11-12 22:35:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2021-11-12 22:35:30,109 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 119 [2021-11-12 22:35:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:30,110 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2021-11-12 22:35:30,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 22:35:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2021-11-12 22:35:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-12 22:35:30,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:30,115 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 22:35:30,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:35:30,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:30,329 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:30,330 INFO L85 PathProgramCache]: Analyzing trace with hash 318660162, now seen corresponding path program 1 times [2021-11-12 22:35:30,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:30,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756617578] [2021-11-12 22:35:30,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:30,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:30,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:30,336 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:30,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:35:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:34,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:35:34,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:35,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-12 22:35:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 22:35:36,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:37,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-12 22:35:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:35:37,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:37,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756617578] [2021-11-12 22:35:37,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756617578] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:37,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:37,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 17 [2021-11-12 22:35:37,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629646082] [2021-11-12 22:35:37,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:37,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:35:37,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:37,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:35:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:35:37,922 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-11-12 22:35:40,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:42,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:44,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:46,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:35:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:48,019 INFO L93 Difference]: Finished difference Result 224 states and 255 transitions. [2021-11-12 22:35:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 22:35:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 125 [2021-11-12 22:35:48,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:48,025 INFO L225 Difference]: With dead ends: 224 [2021-11-12 22:35:48,026 INFO L226 Difference]: Without dead ends: 127 [2021-11-12 22:35:48,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:35:48,028 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 35 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9715.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.12ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 9935.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:48,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1315 Invalid, 196 Unknown, 0 Unchecked, 8.12ms Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 4 Unknown, 81 Unchecked, 9935.35ms Time] [2021-11-12 22:35:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-12 22:35:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2021-11-12 22:35:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 80 states have internal predecessors, (86), 27 states have call successors, (27), 16 states have call predecessors, (27), 18 states have return successors, (30), 27 states have call predecessors, (30), 26 states have call successors, (30) [2021-11-12 22:35:48,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2021-11-12 22:35:48,048 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 125 [2021-11-12 22:35:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:48,049 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2021-11-12 22:35:48,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2021-11-12 22:35:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2021-11-12 22:35:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 22:35:48,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:48,053 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:48,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:48,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:48,264 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1468569993, now seen corresponding path program 1 times [2021-11-12 22:35:48,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:48,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774954106] [2021-11-12 22:35:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:48,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:48,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:48,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:48,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:35:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:53,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:35:53,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 22:35:54,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 22:35:54,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:54,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774954106] [2021-11-12 22:35:54,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774954106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:54,688 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:54,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-12 22:35:54,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921316474] [2021-11-12 22:35:54,689 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:54,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:35:54,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:35:54,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:35:54,691 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 22:35:54,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:54,914 INFO L93 Difference]: Finished difference Result 176 states and 200 transitions. [2021-11-12 22:35:54,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:35:54,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 130 [2021-11-12 22:35:54,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:54,917 INFO L225 Difference]: With dead ends: 176 [2021-11-12 22:35:54,917 INFO L226 Difference]: Without dead ends: 122 [2021-11-12 22:35:54,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:35:54,919 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 2 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:54,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 552 Invalid, 58 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 179.99ms Time] [2021-11-12 22:35:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-12 22:35:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2021-11-12 22:35:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.0810810810810811) internal successors, (80), 75 states have internal predecessors, (80), 27 states have call successors, (27), 16 states have call predecessors, (27), 16 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2021-11-12 22:35:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2021-11-12 22:35:54,936 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 130 [2021-11-12 22:35:54,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:54,937 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2021-11-12 22:35:54,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 22:35:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2021-11-12 22:35:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-12 22:35:54,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:54,941 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:55,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:55,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:55,168 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:55,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:55,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2007938044, now seen corresponding path program 1 times [2021-11-12 22:35:55,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:55,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551694799] [2021-11-12 22:35:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:55,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:55,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:55,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:55,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5ce0169-13ac-44bd-990b-b1046a60e1f0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:38:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:38:42,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-12 22:38:42,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:43,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-12 22:38:43,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-12 22:38:51,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 377 [2021-11-12 22:38:51,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 206 [2021-11-12 22:38:51,822 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:38:51,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 75 [2021-11-12 22:38:54,362 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-12 22:38:54,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-12 22:39:00,059 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-12 22:39:00,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 66 [2021-11-12 22:39:01,669 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-12 22:39:01,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-12 22:39:13,433 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-12 22:39:13,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1411 treesize of output 1319 [2021-11-12 22:39:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 22:39:14,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:23,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28481 treesize of output 27683