./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.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_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/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_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/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_153fe897-2bff-4502-8e6a-f024eddd5c7f/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 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:27:29,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:27:29,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:27:30,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:27:30,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:27:30,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:27:30,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:27:30,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:27:30,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:27:30,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:27:30,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:27:30,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:27:30,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:27:30,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:27:30,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:27:30,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:27:30,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:27:30,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:27:30,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:27:30,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:27:30,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:27:30,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:27:30,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:27:30,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:27:30,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:27:30,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:27:30,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:27:30,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:27:30,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:27:30,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:27:30,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:27:30,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:27:30,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:27:30,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:27:30,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:27:30,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:27:30,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:27:30,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:27:30,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:27:30,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:27:30,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:27:30,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:27:30,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:27:30,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:27:30,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:27:30,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:27:30,146 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:27:30,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:27:30,149 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:27:30,149 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:27:30,156 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:27:30,156 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:27:30,158 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:27:30,158 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:27:30,158 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:27:30,159 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:27:30,159 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:27:30,159 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:27:30,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:27:30,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:27:30,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:27:30,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:27:30,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:27:30,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:27:30,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:27:30,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:27:30,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:27:30,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:27:30,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:27:30,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:27:30,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:30,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:27:30,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:27:30,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:27:30,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:27:30,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:27:30,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:27:30,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:27:30,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:27:30,169 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 [2021-11-13 01:27:30,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:27:30,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:27:30,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:27:30,639 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:27:30,640 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:27:30,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2021-11-13 01:27:30,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/d57695e6c/75988867fc6142af975cc454a87259f3/FLAG9314fe5c9 [2021-11-13 01:27:31,905 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:27:31,906 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2021-11-13 01:27:31,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/d57695e6c/75988867fc6142af975cc454a87259f3/FLAG9314fe5c9 [2021-11-13 01:27:32,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/d57695e6c/75988867fc6142af975cc454a87259f3 [2021-11-13 01:27:32,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:27:32,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:27:32,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:32,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:27:32,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:27:32,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:32" (1/1) ... [2021-11-13 01:27:32,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af4236b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:32, skipping insertion in model container [2021-11-13 01:27:32,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:32" (1/1) ... [2021-11-13 01:27:32,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:27:32,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:32,870 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2021-11-13 01:27:32,880 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2021-11-13 01:27:32,914 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:27:32,923 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:27:34,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:34,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:27:34,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:27:34,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:27:34,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:27:34,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:27:34,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:27:34,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:27:34,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:27:34,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:27:34,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:27:34,948 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:27:35,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:35,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:35,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:35,233 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) [2021-11-13 01:27:35,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67c2cea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:35, skipping insertion in model container [2021-11-13 01:27:35,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:35,234 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:27:35,237 INFO L158 Benchmark]: Toolchain (without parser) took 3051.44ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 61.7MB in the beginning and 98.7MB in the end (delta: -37.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2021-11-13 01:27:35,238 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:27:35,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3045.40ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 61.5MB in the beginning and 98.7MB in the end (delta: -37.2MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2021-11-13 01:27:35,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3045.40ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 61.5MB in the beginning and 98.7MB in the end (delta: -37.2MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/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_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/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_153fe897-2bff-4502-8e6a-f024eddd5c7f/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 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:27:37,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:27:37,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:27:37,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:27:37,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:27:37,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:27:37,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:27:37,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:27:37,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:27:37,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:27:37,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:27:37,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:27:37,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:27:37,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:27:37,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:27:37,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:27:37,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:27:37,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:27:37,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:27:37,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:27:37,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:27:37,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:27:37,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:27:37,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:27:37,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:27:37,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:27:37,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:27:37,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:27:37,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:27:37,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:27:37,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:27:37,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:27:37,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:27:38,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:27:38,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:27:38,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:27:38,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:27:38,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:27:38,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:27:38,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:27:38,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:27:38,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:27:38,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:27:38,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:27:38,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:27:38,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:27:38,065 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:27:38,065 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:27:38,066 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:27:38,066 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:27:38,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:27:38,066 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:27:38,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:27:38,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:27:38,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:27:38,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:27:38,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:27:38,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:27:38,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:27:38,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:27:38,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:27:38,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:27:38,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:27:38,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:27:38,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:27:38,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:27:38,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:38,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:27:38,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:27:38,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:27:38,074 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:27:38,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:27:38,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:27:38,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:27:38,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:27:38,076 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e02581adbae65f3c76984e6696604355ca8e8f10cecf21271078f0821410f3 [2021-11-13 01:27:38,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:27:38,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:27:38,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:27:38,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:27:38,570 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:27:38,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2021-11-13 01:27:38,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/1140df728/6fa3fcbdf8824b8985a21770ddf05ae5/FLAG38180f287 [2021-11-13 01:27:39,742 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:27:39,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i [2021-11-13 01:27:39,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/1140df728/6fa3fcbdf8824b8985a21770ddf05ae5/FLAG38180f287 [2021-11-13 01:27:40,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/data/1140df728/6fa3fcbdf8824b8985a21770ddf05ae5 [2021-11-13 01:27:40,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:27:40,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:27:40,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:40,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:27:40,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:27:40,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:40" (1/1) ... [2021-11-13 01:27:40,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2155d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:40, skipping insertion in model container [2021-11-13 01:27:40,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:40" (1/1) ... [2021-11-13 01:27:40,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:27:40,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:40,774 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2021-11-13 01:27:40,782 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2021-11-13 01:27:40,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:27:40,824 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:27:41,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:41,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:42,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:27:42,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:27:42,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:27:42,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:27:42,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:27:42,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:27:42,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:27:42,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:27:42,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:27:42,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:27:42,790 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:27:42,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:42,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:43,215 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:27:43,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:43,310 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2021-11-13 01:27:43,311 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2021-11-13 01:27:43,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:27:43,314 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:27:43,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:27:43,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:27:43,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:27:43,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:27:43,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:27:43,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:27:43,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:27:43,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:27:43,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:27:43,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:27:43,509 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:27:43,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:43,689 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:27:43,705 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4497,4510] [2021-11-13 01:27:43,706 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_153fe897-2bff-4502-8e6a-f024eddd5c7f/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_c_str_harness-1.i[4557,4570] [2021-11-13 01:27:43,708 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:27:43,709 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:27:43,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:27:43,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:27:43,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:27:43,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:27:43,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:27:43,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:27:43,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:27:43,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:27:43,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:27:43,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:27:43,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:27:43,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:43,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:27:44,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:44,429 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:27:44,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44 WrapperNode [2021-11-13 01:27:44,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:44,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:44,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:27:44,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:27:44,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:44,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:27:44,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:27:44,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:27:44,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:27:44,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:27:44,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:27:44,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:27:44,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (1/1) ... [2021-11-13 01:27:44,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:44,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:44,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:27:44,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:27:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-13 01:27:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-13 01:27:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:27:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 01:27:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 01:27:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:27:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:27:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:27:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:27:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:27:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:27:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:27:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:27:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:27:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 01:27:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 01:27:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:27:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:27:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2021-11-13 01:27:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2021-11-13 01:27:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:27:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:27:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:27:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:27:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:27:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:27:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 01:27:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 01:28:01,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:28:01,095 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:28:01,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:01 BoogieIcfgContainer [2021-11-13 01:28:01,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:28:01,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:28:01,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:28:01,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:28:01,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:40" (1/3) ... [2021-11-13 01:28:01,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd445d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:01, skipping insertion in model container [2021-11-13 01:28:01,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:44" (2/3) ... [2021-11-13 01:28:01,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd445d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:01, skipping insertion in model container [2021-11-13 01:28:01,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:01" (3/3) ... [2021-11-13 01:28:01,120 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_c_str_harness-1.i [2021-11-13 01:28:01,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:28:01,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:28:01,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:28:01,224 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 [2021-11-13 01:28:01,225 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:28:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 67 states have internal predecessors, (82), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-13 01:28:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:28:01,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:01,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:01,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:28:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash 148231849, now seen corresponding path program 1 times [2021-11-13 01:28:01,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:28:01,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817527693] [2021-11-13 01:28:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:01,308 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:28:01,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:28:01,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:28:01,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:28:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:06,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:28:06,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:28:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:06,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:28:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:07,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:28:07,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817527693] [2021-11-13 01:28:07,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817527693] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:07,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:07,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 01:28:07,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055333413] [2021-11-13 01:28:07,063 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:07,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:28:07,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:28:07,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:28:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:28:07,123 INFO L87 Difference]: Start difference. First operand has 96 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 67 states have internal predecessors, (82), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 01:28:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:07,458 INFO L93 Difference]: Finished difference Result 185 states and 254 transitions. [2021-11-13 01:28:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:28:07,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2021-11-13 01:28:07,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:07,478 INFO L225 Difference]: With dead ends: 185 [2021-11-13 01:28:07,478 INFO L226 Difference]: Without dead ends: 91 [2021-11-13 01:28:07,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:28:07,491 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 23 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 218.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 261.52ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:07,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 332 Invalid, 22 Unknown, 0 Unchecked, 7.77ms Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 261.52ms Time] [2021-11-13 01:28:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-13 01:28:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-11-13 01:28:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 64 states have internal predecessors, (74), 21 states have call successors, (21), 7 states have call predecessors, (21), 8 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2021-11-13 01:28:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions. [2021-11-13 01:28:07,574 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 27 [2021-11-13 01:28:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:07,575 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions. [2021-11-13 01:28:07,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 01:28:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions. [2021-11-13 01:28:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 01:28:07,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:07,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:07,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:28:07,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:28:07,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:28:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1541046196, now seen corresponding path program 1 times [2021-11-13 01:28:07,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:28:07,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707983653] [2021-11-13 01:28:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:07,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:28:07,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:28:07,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:28:07,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:28:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:12,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:28:12,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:28:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:12,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:28:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:13,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:28:13,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707983653] [2021-11-13 01:28:13,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707983653] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:13,224 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:13,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-13 01:28:13,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786031537] [2021-11-13 01:28:13,225 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:13,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:28:13,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:28:13,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:28:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:28:13,228 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:28:13,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:13,509 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2021-11-13 01:28:13,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:28:13,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2021-11-13 01:28:13,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:13,513 INFO L225 Difference]: With dead ends: 103 [2021-11-13 01:28:13,513 INFO L226 Difference]: Without dead ends: 101 [2021-11-13 01:28:13,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:28:13,515 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 28 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 168.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.20ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 200.96ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:13,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 955 Invalid, 67 Unknown, 0 Unchecked, 9.20ms Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 200.96ms Time] [2021-11-13 01:28:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-13 01:28:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2021-11-13 01:28:13,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 71 states have internal predecessors, (80), 22 states have call successors, (22), 8 states have call predecessors, (22), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2021-11-13 01:28:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2021-11-13 01:28:13,534 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 33 [2021-11-13 01:28:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:13,535 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2021-11-13 01:28:13,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:28:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2021-11-13 01:28:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:28:13,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:13,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:13,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:28:13,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:28:13,767 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:28:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash -42126596, now seen corresponding path program 1 times [2021-11-13 01:28:13,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:28:13,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830309593] [2021-11-13 01:28:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:13,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:28:13,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:28:13,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:28:13,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:28:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:18,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:28:18,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:28:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:19,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:28:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:19,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:28:19,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830309593] [2021-11-13 01:28:19,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830309593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:19,752 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:19,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:28:19,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850442243] [2021-11-13 01:28:19,752 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:19,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:28:19,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:28:19,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:28:19,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:28:19,755 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:28:22,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:28:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:23,098 INFO L93 Difference]: Finished difference Result 182 states and 232 transitions. [2021-11-13 01:28:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:28:23,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2021-11-13 01:28:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:23,104 INFO L225 Difference]: With dead ends: 182 [2021-11-13 01:28:23,104 INFO L226 Difference]: Without dead ends: 118 [2021-11-13 01:28:23,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:28:23,106 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 74 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2947.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.65ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 3101.09ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:23,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 400 Invalid, 82 Unknown, 0 Unchecked, 4.65ms Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 1 Unknown, 31 Unchecked, 3101.09ms Time] [2021-11-13 01:28:23,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-13 01:28:23,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2021-11-13 01:28:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 76 states have internal predecessors, (87), 22 states have call successors, (22), 8 states have call predecessors, (22), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2021-11-13 01:28:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 132 transitions. [2021-11-13 01:28:23,128 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 132 transitions. Word has length 37 [2021-11-13 01:28:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:23,128 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 132 transitions. [2021-11-13 01:28:23,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:28:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 132 transitions. [2021-11-13 01:28:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:28:23,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:23,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:23,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:28:23,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:28:23,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:28:23,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:23,347 INFO L85 PathProgramCache]: Analyzing trace with hash 216038842, now seen corresponding path program 1 times [2021-11-13 01:28:23,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:28:23,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831880860] [2021-11-13 01:28:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:23,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:28:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:28:23,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:28:23,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:28:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:50,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-13 01:28:50,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:28:51,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:28:51,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-13 01:28:51,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:28:51,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-13 01:28:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:53,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:28:54,463 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 19 treesize of output 17 [2021-11-13 01:28:54,478 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 19 treesize of output 17 [2021-11-13 01:28:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:54,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:28:54,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831880860] [2021-11-13 01:28:54,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831880860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:54,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:54,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 16 [2021-11-13 01:28:54,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835401783] [2021-11-13 01:28:54,605 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:54,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 01:28:54,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:28:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 01:28:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:28:54,607 INFO L87 Difference]: Start difference. First operand 105 states and 132 transitions. Second operand has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-13 01:28:56,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:28:58,841 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 [] [2021-11-13 01:28:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:59,682 INFO L93 Difference]: Finished difference Result 231 states and 297 transitions. [2021-11-13 01:28:59,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 01:28:59,685 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2021-11-13 01:28:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:59,688 INFO L225 Difference]: With dead ends: 231 [2021-11-13 01:28:59,688 INFO L226 Difference]: Without dead ends: 153 [2021-11-13 01:28:59,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:28:59,691 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 81 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4917.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.94ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 5044.74ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:59,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 979 Invalid, 172 Unknown, 0 Unchecked, 6.94ms Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 2 Unknown, 75 Unchecked, 5044.74ms Time] [2021-11-13 01:28:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-13 01:28:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2021-11-13 01:28:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 113 states have (on average 1.247787610619469) internal successors, (141), 120 states have internal predecessors, (141), 23 states have call successors, (23), 9 states have call predecessors, (23), 13 states have return successors, (30), 20 states have call predecessors, (30), 21 states have call successors, (30) [2021-11-13 01:28:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2021-11-13 01:28:59,711 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 37 [2021-11-13 01:28:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:59,712 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2021-11-13 01:28:59,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-13 01:28:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2021-11-13 01:28:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:28:59,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:59,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:59,916 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2021-11-13 01:28:59,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:28:59,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:28:59,951 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:28:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:59,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1063824836, now seen corresponding path program 1 times [2021-11-13 01:28:59,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:28:59,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275599494] [2021-11-13 01:28:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:59,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:28:59,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:28:59,957 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:29:00,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:35:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:15,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:35:15,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:15,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:35:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:15,923 INFO L354 Elim1Store]: treesize reduction 482, result has 1.4 percent of original size [2021-11-13 01:35:15,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 98 [2021-11-13 01:35:16,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:16,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:17,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:35:17,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 120 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 143 treesize of output 191 [2021-11-13 01:35:21,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:35:22,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 205 treesize of output 234 [2021-11-13 01:35:22,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:35:22,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:35:22,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 186 treesize of output 215 [2021-11-13 01:35:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:34,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:36,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:35:36,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-13 01:35:36,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:35:36,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-13 01:35:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:37,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:37,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275599494] [2021-11-13 01:35:37,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275599494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:37,219 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:37,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 8] imperfect sequences [] total 19 [2021-11-13 01:35:37,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719891866] [2021-11-13 01:35:37,219 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:37,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 01:35:37,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:37,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 01:35:37,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=264, Unknown=3, NotChecked=0, Total=342 [2021-11-13 01:35:37,221 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-13 01:35:39,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:41,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:43,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:45,513 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 [] [2021-11-13 01:35:50,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:50,097 INFO L93 Difference]: Finished difference Result 362 states and 477 transitions. [2021-11-13 01:35:50,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 01:35:50,101 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2021-11-13 01:35:50,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:50,106 INFO L225 Difference]: With dead ends: 362 [2021-11-13 01:35:50,106 INFO L226 Difference]: Without dead ends: 244 [2021-11-13 01:35:50,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=75, Invalid=264, Unknown=3, NotChecked=0, Total=342 [2021-11-13 01:35:50,113 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 183 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12475.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 428 IncrementalHoareTripleChecker+Unchecked, 12819.21ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:50,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1202 Invalid, 539 Unknown, 0 Unchecked, 7.27ms Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 4 Unknown, 428 Unchecked, 12819.21ms Time] [2021-11-13 01:35:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-13 01:35:50,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 237. [2021-11-13 01:35:50,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 184 states have (on average 1.2282608695652173) internal successors, (226), 200 states have internal predecessors, (226), 29 states have call successors, (29), 14 states have call predecessors, (29), 23 states have return successors, (59), 22 states have call predecessors, (59), 27 states have call successors, (59) [2021-11-13 01:35:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 314 transitions. [2021-11-13 01:35:50,174 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 314 transitions. Word has length 37 [2021-11-13 01:35:50,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:50,176 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 314 transitions. [2021-11-13 01:35:50,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-13 01:35:50,176 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 314 transitions. [2021-11-13 01:35:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:35:50,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:50,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:50,385 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-13 01:35:50,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 137 [2021-11-13 01:35:50,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:50,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:50,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:50,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1384629120, now seen corresponding path program 1 times [2021-11-13 01:35:50,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:50,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442453297] [2021-11-13 01:35:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:50,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:50,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:50,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:50,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:37:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:54,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 01:37:54,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:54,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 01:37:54,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:54,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 87 [2021-11-13 01:37:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:55,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:56,049 INFO L244 Elim1Store]: Index analysis took 373 ms [2021-11-13 01:37:56,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 120 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 191 [2021-11-13 01:37:57,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:37:57,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-13 01:37:57,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:37:57,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:37:57,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 153 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 176 treesize of output 209 [2021-11-13 01:38:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:38:04,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:12,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:38:12,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 331 [2021-11-13 01:38:12,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:38:12,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 431 [2021-11-13 01:38:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:38:13,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:13,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442453297] [2021-11-13 01:38:13,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442453297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:13,576 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:13,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 10] imperfect sequences [] total 23 [2021-11-13 01:38:13,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021495634] [2021-11-13 01:38:13,577 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:13,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 01:38:13,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:13,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 01:38:13,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2021-11-13 01:38:13,579 INFO L87 Difference]: Start difference. First operand 237 states and 314 transitions. Second operand has 23 states, 23 states have (on average 2.260869565217391) internal successors, (52), 22 states have internal predecessors, (52), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-13 01:38:15,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:17,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:19,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:21,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:29,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:45,915 INFO L93 Difference]: Finished difference Result 509 states and 659 transitions. [2021-11-13 01:38:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-13 01:38:45,918 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.260869565217391) internal successors, (52), 22 states have internal predecessors, (52), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2021-11-13 01:38:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:45,922 INFO L225 Difference]: With dead ends: 509 [2021-11-13 01:38:45,923 INFO L226 Difference]: Without dead ends: 387 [2021-11-13 01:38:45,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=167, Invalid=763, Unknown=0, NotChecked=0, Total=930 [2021-11-13 01:38:45,926 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 131 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25732.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 235 IncrementalHoareTripleChecker+Unchecked, 27129.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:45,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1450 Invalid, 626 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [15 Valid, 371 Invalid, 5 Unknown, 235 Unchecked, 27129.49ms Time] [2021-11-13 01:38:45,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-13 01:38:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 314. [2021-11-13 01:38:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 253 states have (on average 1.225296442687747) internal successors, (310), 275 states have internal predecessors, (310), 29 states have call successors, (29), 16 states have call predecessors, (29), 31 states have return successors, (74), 22 states have call predecessors, (74), 27 states have call successors, (74) [2021-11-13 01:38:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 413 transitions. [2021-11-13 01:38:45,970 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 413 transitions. Word has length 37 [2021-11-13 01:38:45,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:45,971 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 413 transitions. [2021-11-13 01:38:45,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.260869565217391) internal successors, (52), 22 states have internal predecessors, (52), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-13 01:38:45,971 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 413 transitions. [2021-11-13 01:38:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:38:45,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:45,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:46,175 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2021-11-13 01:38:46,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 137 [2021-11-13 01:38:46,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:46,301 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:38:46,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1642794558, now seen corresponding path program 1 times [2021-11-13 01:38:46,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:46,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831236437] [2021-11-13 01:38:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:46,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:46,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:46,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:46,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:38:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:51,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:38:51,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:38:51,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:38:52,417 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:52,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831236437] [2021-11-13 01:38:52,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831236437] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:52,417 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:38:52,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:38:52,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586012131] [2021-11-13 01:38:52,418 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:52,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:38:52,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:38:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:38:52,419 INFO L87 Difference]: Start difference. First operand 314 states and 413 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:38:54,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:55,962 INFO L93 Difference]: Finished difference Result 482 states and 628 transitions. [2021-11-13 01:38:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:38:55,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2021-11-13 01:38:55,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:55,969 INFO L225 Difference]: With dead ends: 482 [2021-11-13 01:38:55,969 INFO L226 Difference]: Without dead ends: 314 [2021-11-13 01:38:55,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:38:55,972 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 44 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2853.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3014.31ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:55,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 323 Invalid, 50 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 3014.31ms Time] [2021-11-13 01:38:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-13 01:38:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 304. [2021-11-13 01:38:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 243 states have (on average 1.1851851851851851) internal successors, (288), 265 states have internal predecessors, (288), 29 states have call successors, (29), 16 states have call predecessors, (29), 31 states have return successors, (74), 22 states have call predecessors, (74), 27 states have call successors, (74) [2021-11-13 01:38:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 391 transitions. [2021-11-13 01:38:56,008 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 391 transitions. Word has length 37 [2021-11-13 01:38:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:56,008 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 391 transitions. [2021-11-13 01:38:56,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:38:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 391 transitions. [2021-11-13 01:38:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 01:38:56,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:56,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:56,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:56,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:56,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:38:56,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:56,227 INFO L85 PathProgramCache]: Analyzing trace with hash 434893560, now seen corresponding path program 1 times [2021-11-13 01:38:56,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:56,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449738728] [2021-11-13 01:38:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:56,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:56,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:56,236 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:56,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:40:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:43,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 01:40:43,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:40:43,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-13 01:40:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:40:43,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-13 01:40:45,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:45,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:46,956 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 19 treesize of output 17 [2021-11-13 01:40:46,971 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 19 treesize of output 17 [2021-11-13 01:40:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:47,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:47,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449738728] [2021-11-13 01:40:47,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449738728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:47,359 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:47,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 18 [2021-11-13 01:40:47,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505414178] [2021-11-13 01:40:47,360 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:47,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 01:40:47,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:47,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 01:40:47,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:40:47,362 INFO L87 Difference]: Start difference. First operand 304 states and 391 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 01:40:49,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:51,751 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 [] [2021-11-13 01:40:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:54,502 INFO L93 Difference]: Finished difference Result 546 states and 718 transitions. [2021-11-13 01:40:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 01:40:54,503 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 37 [2021-11-13 01:40:54,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:54,508 INFO L225 Difference]: With dead ends: 546 [2021-11-13 01:40:54,508 INFO L226 Difference]: Without dead ends: 367 [2021-11-13 01:40:54,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2021-11-13 01:40:54,511 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 94 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6368.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.72ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 6647.39ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:54,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 1231 Invalid, 286 Unknown, 0 Unchecked, 8.72ms Time], IncrementalHoareTripleChecker [20 Valid, 213 Invalid, 2 Unknown, 51 Unchecked, 6647.39ms Time] [2021-11-13 01:40:54,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-11-13 01:40:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 297. [2021-11-13 01:40:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 237 states have (on average 1.1856540084388185) internal successors, (281), 258 states have internal predecessors, (281), 29 states have call successors, (29), 16 states have call predecessors, (29), 30 states have return successors, (70), 22 states have call predecessors, (70), 27 states have call successors, (70) [2021-11-13 01:40:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 380 transitions. [2021-11-13 01:40:54,542 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 380 transitions. Word has length 37 [2021-11-13 01:40:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:54,543 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 380 transitions. [2021-11-13 01:40:54,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 01:40:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 380 transitions. [2021-11-13 01:40:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 01:40:54,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:54,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:54,758 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2021-11-13 01:40:54,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 137 [2021-11-13 01:40:54,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:54,902 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1609661759, now seen corresponding path program 1 times [2021-11-13 01:40:54,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:54,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827924503] [2021-11-13 01:40:54,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:54,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:54,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:54,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:54,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:40:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:59,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:40:59,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:00,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:01,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:01,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827924503] [2021-11-13 01:41:01,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827924503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:01,401 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:01,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 01:41:01,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902806759] [2021-11-13 01:41:01,402 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:01,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:41:01,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:41:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:41:01,403 INFO L87 Difference]: Start difference. First operand 297 states and 380 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:41:03,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:05,692 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 [] [2021-11-13 01:41:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:07,885 INFO L93 Difference]: Finished difference Result 420 states and 533 transitions. [2021-11-13 01:41:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:41:07,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-11-13 01:41:07,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:07,890 INFO L225 Difference]: With dead ends: 420 [2021-11-13 01:41:07,890 INFO L226 Difference]: Without dead ends: 296 [2021-11-13 01:41:07,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:41:07,892 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 45 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5535.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.49ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 5776.16ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:07,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 575 Invalid, 122 Unknown, 0 Unchecked, 2.49ms Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 2 Unknown, 2 Unchecked, 5776.16ms Time] [2021-11-13 01:41:07,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-13 01:41:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 284. [2021-11-13 01:41:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 225 states have (on average 1.1733333333333333) internal successors, (264), 245 states have internal predecessors, (264), 29 states have call successors, (29), 16 states have call predecessors, (29), 29 states have return successors, (63), 22 states have call predecessors, (63), 27 states have call successors, (63) [2021-11-13 01:41:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 356 transitions. [2021-11-13 01:41:07,917 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 356 transitions. Word has length 39 [2021-11-13 01:41:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:07,918 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 356 transitions. [2021-11-13 01:41:07,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:41:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 356 transitions. [2021-11-13 01:41:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 01:41:07,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:07,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:07,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:08,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:08,139 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:08,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2007479045, now seen corresponding path program 1 times [2021-11-13 01:41:08,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:08,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265717705] [2021-11-13 01:41:08,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:08,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:08,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:08,144 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:08,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:41:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:12,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:41:12,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:12,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:12,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:12,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265717705] [2021-11-13 01:41:12,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265717705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:12,962 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:12,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 01:41:12,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722958148] [2021-11-13 01:41:12,963 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:12,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:41:12,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:12,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:41:12,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:41:12,964 INFO L87 Difference]: Start difference. First operand 284 states and 356 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:41:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:13,062 INFO L93 Difference]: Finished difference Result 388 states and 482 transitions. [2021-11-13 01:41:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:41:13,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-11-13 01:41:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:13,066 INFO L225 Difference]: With dead ends: 388 [2021-11-13 01:41:13,066 INFO L226 Difference]: Without dead ends: 250 [2021-11-13 01:41:13,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:41:13,068 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 34 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.15ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:13,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 328 Invalid, 15 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 63.15ms Time] [2021-11-13 01:41:13,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-13 01:41:13,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 222. [2021-11-13 01:41:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 170 states have (on average 1.1529411764705881) internal successors, (196), 184 states have internal predecessors, (196), 28 states have call successors, (28), 15 states have call predecessors, (28), 23 states have return successors, (46), 22 states have call predecessors, (46), 26 states have call successors, (46) [2021-11-13 01:41:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 270 transitions. [2021-11-13 01:41:13,089 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 270 transitions. Word has length 39 [2021-11-13 01:41:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:13,090 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 270 transitions. [2021-11-13 01:41:13,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:41:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 270 transitions. [2021-11-13 01:41:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 01:41:13,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:13,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:13,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:13,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:13,307 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:13,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:13,307 INFO L85 PathProgramCache]: Analyzing trace with hash -281933435, now seen corresponding path program 1 times [2021-11-13 01:41:13,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:13,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252149087] [2021-11-13 01:41:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:13,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:13,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:13,312 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:13,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:41:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:17,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:41:17,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:18,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:18,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:18,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252149087] [2021-11-13 01:41:18,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252149087] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:18,727 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:18,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 14 [2021-11-13 01:41:18,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989257080] [2021-11-13 01:41:18,728 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:18,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 01:41:18,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:18,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 01:41:18,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:41:18,729 INFO L87 Difference]: Start difference. First operand 222 states and 270 transitions. Second operand has 14 states, 12 states have (on average 3.0) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:41:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:19,301 INFO L93 Difference]: Finished difference Result 248 states and 299 transitions. [2021-11-13 01:41:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:41:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.0) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2021-11-13 01:41:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:19,305 INFO L225 Difference]: With dead ends: 248 [2021-11-13 01:41:19,305 INFO L226 Difference]: Without dead ends: 246 [2021-11-13 01:41:19,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-13 01:41:19,307 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 31 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 295.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.88ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 320.47ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:19,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 1028 Invalid, 111 Unknown, 0 Unchecked, 2.88ms Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 320.47ms Time] [2021-11-13 01:41:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-13 01:41:19,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 232. [2021-11-13 01:41:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 179 states have (on average 1.1452513966480447) internal successors, (205), 194 states have internal predecessors, (205), 28 states have call successors, (28), 15 states have call predecessors, (28), 24 states have return successors, (50), 22 states have call predecessors, (50), 26 states have call successors, (50) [2021-11-13 01:41:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 283 transitions. [2021-11-13 01:41:19,332 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 283 transitions. Word has length 39 [2021-11-13 01:41:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:19,333 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 283 transitions. [2021-11-13 01:41:19,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.0) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-13 01:41:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 283 transitions. [2021-11-13 01:41:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 01:41:19,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:19,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:19,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:19,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:19,551 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:19,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:19,551 INFO L85 PathProgramCache]: Analyzing trace with hash 419131143, now seen corresponding path program 1 times [2021-11-13 01:41:19,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:19,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698674130] [2021-11-13 01:41:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:19,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:19,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:19,556 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:19,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153fe897-2bff-4502-8e6a-f024eddd5c7f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process