./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:38:30,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:38:30,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:38:30,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:38:30,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:38:30,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:38:30,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:38:30,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:38:30,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:38:30,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:38:30,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:38:30,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:38:30,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:38:30,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:38:30,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:38:30,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:38:30,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:38:30,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:38:30,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:38:30,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:38:30,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:38:30,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:38:30,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:38:30,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:38:30,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:38:30,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:38:30,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:38:30,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:38:30,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:38:30,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:38:30,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:38:30,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:38:30,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:38:30,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:38:30,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:38:30,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:38:30,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:38:30,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:38:30,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:38:30,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:38:30,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:38:30,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:38:30,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:38:30,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:38:30,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:38:30,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:38:30,286 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:38:30,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:38:30,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:38:30,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:38:30,287 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:38:30,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:38:30,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:38:30,287 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:38:30,287 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:38:30,288 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:38:30,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:38:30,288 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:38:30,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:38:30,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:38:30,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:38:30,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:38:30,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:38:30,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:38:30,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:38:30,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:38:30,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:38:30,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:38:30,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:38:30,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:38:30,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:38:30,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:38:30,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:38:30,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:38:30,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:38:30,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:38:30,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:38:30,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:38:30,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:38:30,294 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-12 22:38:30,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:38:30,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:38:30,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:38:30,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:38:30,608 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:38:30,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-12 22:38:30,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/c82357b0f/80c394bf46054637b1b60e1a0bb94380/FLAG2c8ca722f [2021-11-12 22:38:31,671 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:38:31,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-12 22:38:31,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/c82357b0f/80c394bf46054637b1b60e1a0bb94380/FLAG2c8ca722f [2021-11-12 22:38:32,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/c82357b0f/80c394bf46054637b1b60e1a0bb94380 [2021-11-12 22:38:32,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:38:32,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:38:32,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:38:32,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:38:32,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:38:32,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:38:32" (1/1) ... [2021-11-12 22:38:32,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5944a963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:32, skipping insertion in model container [2021-11-12 22:38:32,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:38:32" (1/1) ... [2021-11-12 22:38:32,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:38:32,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:38:32,502 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-12 22:38:32,510 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-12 22:38:32,539 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:38:32,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:38:33,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:33,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:34,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:38:34,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:38:34,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:38:34,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:38:34,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:38:34,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:38:34,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:38:34,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:38:34,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:38:34,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:38:34,567 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:38:35,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:35,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:38:35,165 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:38:35,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d9bfd08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:35, skipping insertion in model container [2021-11-12 22:38:35,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:38:35,166 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:38:35,168 INFO L158 Benchmark]: Toolchain (without parser) took 3118.38ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 52.7MB in the beginning and 57.4MB in the end (delta: -4.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-12 22:38:35,169 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:38:35,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3111.86ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 52.5MB in the beginning and 57.4MB in the end (delta: -4.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-12 22:38:35,171 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 96.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3111.86ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 52.5MB in the beginning and 57.4MB in the end (delta: -4.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:38:37,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:38:37,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:38:37,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:38:37,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:38:37,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:38:37,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:38:37,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:38:37,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:38:37,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:38:37,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:38:37,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:38:37,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:38:37,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:38:37,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:38:37,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:38:37,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:38:37,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:38:37,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:38:37,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:38:37,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:38:37,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:38:37,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:38:37,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:38:37,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:38:37,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:38:37,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:38:37,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:38:37,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:38:37,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:38:37,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:38:37,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:38:37,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:38:37,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:38:37,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:38:37,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:38:37,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:38:37,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:38:37,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:38:37,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:38:37,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:38:37,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:38:37,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:38:37,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:38:37,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:38:37,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:38:37,684 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:38:37,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:38:37,684 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:38:37,684 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:38:37,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:38:37,685 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:38:37,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:38:37,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:38:37,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:38:37,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:38:37,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:38:37,688 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:38:37,688 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:38:37,689 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:38:37,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:38:37,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:38:37,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:38:37,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:38:37,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:38:37,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:38:37,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:38:37,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:38:37,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:38:37,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:38:37,691 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:38:37,691 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:38:37,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:38:37,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:38:37,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:38:37,692 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-12 22:38:38,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:38:38,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:38:38,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:38:38,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:38:38,127 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:38:38,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-12 22:38:38,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/b6aed6876/bc6f87cdb61c4244aa7858c00a07d32e/FLAG347f34727 [2021-11-12 22:38:39,252 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:38:39,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-12 22:38:39,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/b6aed6876/bc6f87cdb61c4244aa7858c00a07d32e/FLAG347f34727 [2021-11-12 22:38:39,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/data/b6aed6876/bc6f87cdb61c4244aa7858c00a07d32e [2021-11-12 22:38:39,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:38:39,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:38:39,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:38:39,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:38:39,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:38:39,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:38:39" (1/1) ... [2021-11-12 22:38:39,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fffa01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:39, skipping insertion in model container [2021-11-12 22:38:39,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:38:39" (1/1) ... [2021-11-12 22:38:39,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:38:39,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:38:40,313 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-12 22:38:40,323 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-12 22:38:40,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:38:40,371 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:38:41,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:41,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:42,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:38:42,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:38:42,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:38:42,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:38:42,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:38:42,472 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:38:42,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:38:42,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:38:42,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:38:42,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:38:42,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:38:43,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:38:43,578 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:38:43,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:38:43,660 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-12 22:38:43,661 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-12 22:38:43,663 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:38:43,664 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:38:43,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:43,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:38:43,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:38:43,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:38:43,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:38:43,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:38:43,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:38:43,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:38:43,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:38:43,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:38:43,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:38:43,843 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:38:44,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:38:44,173 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:38:44,199 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-12 22:38:44,206 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_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-12 22:38:44,208 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:38:44,210 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:38:44,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:38:44,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:38:44,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:38:44,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:38:44,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:38:44,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:38:44,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:38:44,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:38:44,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:38:44,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:38:44,319 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:38:44,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:38:44,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:38:45,045 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:38:45,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45 WrapperNode [2021-11-12 22:38:45,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:38:45,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:38:45,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:38:45,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:38:45,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:38:45,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:38:45,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:38:45,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:38:45,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:38:45,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:38:45,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:38:45,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:38:45,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (1/1) ... [2021-11-12 22:38:45,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:38:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:38:45,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:38:45,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:38:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 22:38:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:38:45,583 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:38:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:38:45,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:38:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:38:45,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:38:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-12 22:38:45,590 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-12 22:38:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:38:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:38:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2021-11-12 22:38:45,591 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2021-11-12 22:38:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:38:45,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:38:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:38:45,591 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:38:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:38:45,592 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:38:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:38:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 22:38:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-12 22:38:45,592 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-12 22:38:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:38:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 22:38:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 22:38:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:38:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:38:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:38:45,593 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:38:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2021-11-12 22:38:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2021-11-12 22:38:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:38:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-12 22:38:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-12 22:38:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2021-11-12 22:38:45,594 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2021-11-12 22:38:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2021-11-12 22:38:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2021-11-12 22:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2021-11-12 22:38:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2021-11-12 22:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-12 22:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-12 22:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2021-11-12 22:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2021-11-12 22:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-12 22:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-12 22:38:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:38:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:38:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2021-11-12 22:38:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2021-11-12 22:38:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2021-11-12 22:38:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2021-11-12 22:38:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:38:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:38:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2021-11-12 22:38:45,598 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2021-11-12 22:38:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-12 22:38:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:38:45,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:38:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:38:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:38:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-12 22:38:45,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-12 22:38:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:38:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 22:38:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 22:38:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:38:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:38:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 22:38:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 22:38:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-12 22:38:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2021-11-12 22:38:45,601 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2021-11-12 22:38:49,494 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2021-11-12 22:38:52,755 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2021-11-12 22:38:55,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2021-11-12 22:38:55,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2021-11-12 22:39:14,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:39:14,469 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-12 22:39:14,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:39:14 BoogieIcfgContainer [2021-11-12 22:39:14,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:39:14,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:39:14,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:39:14,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:39:14,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:38:39" (1/3) ... [2021-11-12 22:39:14,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:39:14, skipping insertion in model container [2021-11-12 22:39:14,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:38:45" (2/3) ... [2021-11-12 22:39:14,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:39:14, skipping insertion in model container [2021-11-12 22:39:14,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:39:14" (3/3) ... [2021-11-12 22:39:14,482 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2021-11-12 22:39:14,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:39:14,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:39:14,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:39:14,552 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:39:14,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:39:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 341 states, 232 states have (on average 1.2974137931034482) internal successors, (301), 229 states have internal predecessors, (301), 83 states have call successors, (83), 28 states have call predecessors, (83), 28 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2021-11-12 22:39:14,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-12 22:39:14,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:14,594 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:14,595 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:39:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash -202297987, now seen corresponding path program 1 times [2021-11-12 22:39:14,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:14,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849646484] [2021-11-12 22:39:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:14,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:14,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:14,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:14,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:39:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:19,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:39:19,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-12 22:39:19,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-12 22:39:20,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:20,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849646484] [2021-11-12 22:39:20,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849646484] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:39:20,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:39:20,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:39:20,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932533357] [2021-11-12 22:39:20,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:20,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:39:20,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:20,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:39:20,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:39:20,274 INFO L87 Difference]: Start difference. First operand has 341 states, 232 states have (on average 1.2974137931034482) internal successors, (301), 229 states have internal predecessors, (301), 83 states have call successors, (83), 28 states have call predecessors, (83), 28 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 22:39:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:20,343 INFO L93 Difference]: Finished difference Result 676 states and 968 transitions. [2021-11-12 22:39:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:39:20,348 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2021-11-12 22:39:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:20,369 INFO L225 Difference]: With dead ends: 676 [2021-11-12 22:39:20,369 INFO L226 Difference]: Without dead ends: 335 [2021-11-12 22:39:20,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:39:20,387 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:20,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 4.63ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:39:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-12 22:39:20,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-11-12 22:39:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 223 states have (on average 1.2825112107623318) internal successors, (286), 224 states have internal predecessors, (286), 83 states have call successors, (83), 28 states have call predecessors, (83), 28 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-12 22:39:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 451 transitions. [2021-11-12 22:39:20,509 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 451 transitions. Word has length 134 [2021-11-12 22:39:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:20,510 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 451 transitions. [2021-11-12 22:39:20,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 22:39:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 451 transitions. [2021-11-12 22:39:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-12 22:39:20,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:20,523 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:20,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:20,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:20,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:39:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1645413315, now seen corresponding path program 1 times [2021-11-12 22:39:20,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:20,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703970694] [2021-11-12 22:39:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:20,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:20,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:20,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:39:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:25,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:39:25,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:25,914 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-12 22:39:25,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-12 22:39:26,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:26,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703970694] [2021-11-12 22:39:26,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703970694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:39:26,643 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:39:26,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:39:26,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116178890] [2021-11-12 22:39:26,643 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:26,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:39:26,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:39:26,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:39:26,656 INFO L87 Difference]: Start difference. First operand 335 states and 451 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:39:26,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:26,861 INFO L93 Difference]: Finished difference Result 665 states and 899 transitions. [2021-11-12 22:39:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:39:26,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 134 [2021-11-12 22:39:26,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:26,877 INFO L225 Difference]: With dead ends: 665 [2021-11-12 22:39:26,877 INFO L226 Difference]: Without dead ends: 339 [2021-11-12 22:39:26,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:39:26,882 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 2 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:26,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1792 Invalid, 11 Unknown, 0 Unchecked, 20.62ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 85.08ms Time] [2021-11-12 22:39:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-12 22:39:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2021-11-12 22:39:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 226 states have (on average 1.2787610619469028) internal successors, (289), 227 states have internal predecessors, (289), 83 states have call successors, (83), 28 states have call predecessors, (83), 29 states have return successors, (86), 83 states have call predecessors, (86), 82 states have call successors, (86) [2021-11-12 22:39:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 458 transitions. [2021-11-12 22:39:26,926 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 458 transitions. Word has length 134 [2021-11-12 22:39:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:26,928 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 458 transitions. [2021-11-12 22:39:26,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:39:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 458 transitions. [2021-11-12 22:39:26,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-12 22:39:26,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:26,938 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:26,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:27,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:27,155 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:39:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1960509953, now seen corresponding path program 1 times [2021-11-12 22:39:27,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:27,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945752970] [2021-11-12 22:39:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:27,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:27,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:27,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:27,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:39:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:31,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:39:31,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-12 22:39:32,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-12 22:39:33,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:33,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945752970] [2021-11-12 22:39:33,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945752970] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:39:33,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:39:33,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:39:33,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035247760] [2021-11-12 22:39:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:33,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:39:33,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:33,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:39:33,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:39:33,089 INFO L87 Difference]: Start difference. First operand 339 states and 458 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 22:39:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:33,836 INFO L93 Difference]: Finished difference Result 671 states and 905 transitions. [2021-11-12 22:39:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:39:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2021-11-12 22:39:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:33,841 INFO L225 Difference]: With dead ends: 671 [2021-11-12 22:39:33,841 INFO L226 Difference]: Without dead ends: 341 [2021-11-12 22:39:33,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:39:33,843 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 2 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 579.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 651.61ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:33,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2101 Invalid, 148 Unknown, 0 Unchecked, 11.73ms Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 651.61ms Time] [2021-11-12 22:39:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-12 22:39:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-12 22:39:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 227 states have (on average 1.277533039647577) internal successors, (290), 229 states have internal predecessors, (290), 83 states have call successors, (83), 28 states have call predecessors, (83), 30 states have return successors, (87), 83 states have call predecessors, (87), 82 states have call successors, (87) [2021-11-12 22:39:33,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 460 transitions. [2021-11-12 22:39:33,881 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 460 transitions. Word has length 140 [2021-11-12 22:39:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:33,882 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 460 transitions. [2021-11-12 22:39:33,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 22:39:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 460 transitions. [2021-11-12 22:39:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-12 22:39:33,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:33,884 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:39:33,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:34,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:34,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:39:34,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:34,106 INFO L85 PathProgramCache]: Analyzing trace with hash -16928128, now seen corresponding path program 1 times [2021-11-12 22:39:34,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:34,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294308852] [2021-11-12 22:39:34,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:39:34,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:34,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:34,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:34,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:39:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:39:38,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:39:38,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:39,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 22:39:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-12 22:39:40,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:42,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-12 22:39:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-12 22:39:42,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:42,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294308852] [2021-11-12 22:39:42,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294308852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:39:42,528 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:39:42,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 15 [2021-11-12 22:39:42,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932682738] [2021-11-12 22:39:42,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:42,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:39:42,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:39:42,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:39:42,531 INFO L87 Difference]: Start difference. First operand 341 states and 460 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 13 states have internal predecessors, (87), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-12 22:39:44,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:46,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:48,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:50,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:54,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:56,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:39:58,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:00,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:02,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:04,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:07,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:09,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:11,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:13,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:15,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:17,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:19,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:21,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:25,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:27,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:29,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:31,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:34,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:36,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:38,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:40,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:42,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:44,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:46,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:48,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:48,766 INFO L93 Difference]: Finished difference Result 682 states and 916 transitions. [2021-11-12 22:40:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 22:40:48,814 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 13 states have internal predecessors, (87), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 145 [2021-11-12 22:40:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:48,819 INFO L225 Difference]: With dead ends: 682 [2021-11-12 22:40:48,820 INFO L226 Difference]: Without dead ends: 358 [2021-11-12 22:40:48,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:40:48,824 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 31 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 1 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64984.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 66057.54ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:48,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 4091 Invalid, 414 Unknown, 0 Unchecked, 17.42ms Time], IncrementalHoareTripleChecker [1 Valid, 245 Invalid, 30 Unknown, 138 Unchecked, 66057.54ms Time] [2021-11-12 22:40:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-12 22:40:48,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 353. [2021-11-12 22:40:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 240 states have internal predecessors, (302), 83 states have call successors, (83), 29 states have call predecessors, (83), 32 states have return successors, (89), 83 states have call predecessors, (89), 82 states have call successors, (89) [2021-11-12 22:40:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 474 transitions. [2021-11-12 22:40:48,861 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 474 transitions. Word has length 145 [2021-11-12 22:40:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:48,862 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 474 transitions. [2021-11-12 22:40:48,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 13 states have internal predecessors, (87), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-12 22:40:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 474 transitions. [2021-11-12 22:40:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-12 22:40:48,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:48,867 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:48,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:49,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:49,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:49,087 INFO L85 PathProgramCache]: Analyzing trace with hash 10137474, now seen corresponding path program 1 times [2021-11-12 22:40:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:49,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056460896] [2021-11-12 22:40:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:49,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:49,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:49,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:49,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:40:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:40:54,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:40:54,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-12 22:40:55,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-12 22:40:57,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:57,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056460896] [2021-11-12 22:40:57,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056460896] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:57,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:57,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:40:57,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145598819] [2021-11-12 22:40:57,005 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:57,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:40:57,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:57,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:40:57,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:40:57,008 INFO L87 Difference]: Start difference. First operand 353 states and 474 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-12 22:40:59,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:40:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:59,622 INFO L93 Difference]: Finished difference Result 687 states and 922 transitions. [2021-11-12 22:40:59,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:40:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 145 [2021-11-12 22:40:59,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:59,634 INFO L225 Difference]: With dead ends: 687 [2021-11-12 22:40:59,634 INFO L226 Difference]: Without dead ends: 358 [2021-11-12 22:40:59,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:40:59,638 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 20 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2469.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2576.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:59,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 1744 Invalid, 35 Unknown, 0 Unchecked, 5.64ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2576.70ms Time] [2021-11-12 22:40:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-12 22:40:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 352. [2021-11-12 22:40:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 236 states have (on average 1.271186440677966) internal successors, (300), 238 states have internal predecessors, (300), 84 states have call successors, (84), 29 states have call predecessors, (84), 31 states have return successors, (89), 84 states have call predecessors, (89), 83 states have call successors, (89) [2021-11-12 22:40:59,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 473 transitions. [2021-11-12 22:40:59,669 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 473 transitions. Word has length 145 [2021-11-12 22:40:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:59,670 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 473 transitions. [2021-11-12 22:40:59,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-12 22:40:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 473 transitions. [2021-11-12 22:40:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-12 22:40:59,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:59,675 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:59,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:59,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:59,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1905137460, now seen corresponding path program 1 times [2021-11-12 22:40:59,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:59,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873195893] [2021-11-12 22:40:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:59,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:59,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:59,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:41:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:05,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:41:05,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:06,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 22:41:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-12 22:41:08,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:10,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-12 22:41:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-12 22:41:10,581 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:10,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873195893] [2021-11-12 22:41:10,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873195893] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:10,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:41:10,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 17 [2021-11-12 22:41:10,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854139204] [2021-11-12 22:41:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:10,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:41:10,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:41:10,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:41:10,584 INFO L87 Difference]: Start difference. First operand 352 states and 473 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2021-11-12 22:41:13,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:13,906 INFO L93 Difference]: Finished difference Result 689 states and 925 transitions. [2021-11-12 22:41:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:41:13,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 151 [2021-11-12 22:41:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:13,916 INFO L225 Difference]: With dead ends: 689 [2021-11-12 22:41:13,917 INFO L226 Difference]: Without dead ends: 355 [2021-11-12 22:41:13,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:41:13,920 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 22 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2985.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.15ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 134 IncrementalHoareTripleChecker+Unchecked, 3117.73ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:13,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 2102 Invalid, 174 Unknown, 0 Unchecked, 6.15ms Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 1 Unknown, 134 Unchecked, 3117.73ms Time] [2021-11-12 22:41:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-12 22:41:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2021-11-12 22:41:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 238 states have (on average 1.26890756302521) internal successors, (302), 240 states have internal predecessors, (302), 85 states have call successors, (85), 30 states have call predecessors, (85), 31 states have return successors, (90), 84 states have call predecessors, (90), 84 states have call successors, (90) [2021-11-12 22:41:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 477 transitions. [2021-11-12 22:41:13,947 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 477 transitions. Word has length 151 [2021-11-12 22:41:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:13,948 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 477 transitions. [2021-11-12 22:41:13,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2021-11-12 22:41:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 477 transitions. [2021-11-12 22:41:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 22:41:13,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:13,952 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:14,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:14,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:14,172 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2024247013, now seen corresponding path program 1 times [2021-11-12 22:41:14,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:14,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698393055] [2021-11-12 22:41:14,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:14,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:14,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:14,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:41:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:19,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:41:19,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-12 22:41:20,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-12 22:41:20,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:20,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698393055] [2021-11-12 22:41:20,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698393055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:20,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:20,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-12 22:41:20,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217840353] [2021-11-12 22:41:20,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:20,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:41:20,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:41:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:41:20,814 INFO L87 Difference]: Start difference. First operand 355 states and 477 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 22:41:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:21,654 INFO L93 Difference]: Finished difference Result 655 states and 885 transitions. [2021-11-12 22:41:21,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:41:21,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 156 [2021-11-12 22:41:21,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:21,662 INFO L225 Difference]: With dead ends: 655 [2021-11-12 22:41:21,662 INFO L226 Difference]: Without dead ends: 357 [2021-11-12 22:41:21,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:41:21,666 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 689.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 763.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:21,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2112 Invalid, 146 Unknown, 0 Unchecked, 6.49ms Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 763.30ms Time] [2021-11-12 22:41:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-11-12 22:41:21,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-11-12 22:41:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 239 states have (on average 1.2677824267782427) internal successors, (303), 242 states have internal predecessors, (303), 85 states have call successors, (85), 30 states have call predecessors, (85), 32 states have return successors, (97), 84 states have call predecessors, (97), 84 states have call successors, (97) [2021-11-12 22:41:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 485 transitions. [2021-11-12 22:41:21,697 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 485 transitions. Word has length 156 [2021-11-12 22:41:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:21,698 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 485 transitions. [2021-11-12 22:41:21,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 22:41:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 485 transitions. [2021-11-12 22:41:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 22:41:21,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:21,702 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:21,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:21,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:21,930 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:21,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash -129920552, now seen corresponding path program 1 times [2021-11-12 22:41:21,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:21,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192889386] [2021-11-12 22:41:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:21,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:21,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:21,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:21,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:41:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:26,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1909 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:41:26,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:27,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:27,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:27,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192889386] [2021-11-12 22:41:27,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192889386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:27,689 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:27,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:41:27,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777949794] [2021-11-12 22:41:27,690 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:27,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:41:27,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:27,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:41:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:41:27,691 INFO L87 Difference]: Start difference. First operand 357 states and 485 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-12 22:41:27,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:27,931 INFO L93 Difference]: Finished difference Result 365 states and 492 transitions. [2021-11-12 22:41:27,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:41:27,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2021-11-12 22:41:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:27,936 INFO L225 Difference]: With dead ends: 365 [2021-11-12 22:41:27,936 INFO L226 Difference]: Without dead ends: 363 [2021-11-12 22:41:27,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:41:27,938 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 15 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.54ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.79ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:27,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 2219 Invalid, 34 Unknown, 0 Unchecked, 4.54ms Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 181.79ms Time] [2021-11-12 22:41:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-12 22:41:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2021-11-12 22:41:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 242 states have (on average 1.2644628099173554) internal successors, (306), 245 states have internal predecessors, (306), 85 states have call successors, (85), 31 states have call predecessors, (85), 33 states have return successors, (97), 84 states have call predecessors, (97), 84 states have call successors, (97) [2021-11-12 22:41:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 488 transitions. [2021-11-12 22:41:27,963 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 488 transitions. Word has length 161 [2021-11-12 22:41:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:27,965 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 488 transitions. [2021-11-12 22:41:27,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-12 22:41:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 488 transitions. [2021-11-12 22:41:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-12 22:41:27,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:27,968 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:28,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:28,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:28,182 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:28,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash 855033707, now seen corresponding path program 1 times [2021-11-12 22:41:28,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:28,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880910110] [2021-11-12 22:41:28,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:28,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:28,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:28,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:41:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:33,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:41:33,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:33,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:34,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:34,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880910110] [2021-11-12 22:41:34,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880910110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:34,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:34,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:41:34,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664589283] [2021-11-12 22:41:34,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:34,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:41:34,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:41:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:41:34,350 INFO L87 Difference]: Start difference. First operand 361 states and 488 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2021-11-12 22:41:34,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:34,626 INFO L93 Difference]: Finished difference Result 373 states and 500 transitions. [2021-11-12 22:41:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:41:34,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2021-11-12 22:41:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:34,632 INFO L225 Difference]: With dead ends: 373 [2021-11-12 22:41:34,632 INFO L226 Difference]: Without dead ends: 371 [2021-11-12 22:41:34,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:41:34,634 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 10 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 193.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.84ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:34,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2675 Invalid, 51 Unknown, 0 Unchecked, 4.84ms Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 212.48ms Time] [2021-11-12 22:41:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-12 22:41:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 365. [2021-11-12 22:41:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.2612244897959184) internal successors, (309), 248 states have internal predecessors, (309), 85 states have call successors, (85), 32 states have call predecessors, (85), 34 states have return successors, (97), 84 states have call predecessors, (97), 84 states have call successors, (97) [2021-11-12 22:41:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 491 transitions. [2021-11-12 22:41:34,659 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 491 transitions. Word has length 174 [2021-11-12 22:41:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:34,661 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 491 transitions. [2021-11-12 22:41:34,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2021-11-12 22:41:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 491 transitions. [2021-11-12 22:41:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 22:41:34,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:34,665 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:34,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-12 22:41:34,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,882 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:34,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:34,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1607031790, now seen corresponding path program 1 times [2021-11-12 22:41:34,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:34,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604397150] [2021-11-12 22:41:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:34,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:34,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:34,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:41:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:39,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:41:39,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:40,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:40,877 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:40,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604397150] [2021-11-12 22:41:40,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604397150] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:40,877 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:40,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:41:40,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663014259] [2021-11-12 22:41:40,878 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:40,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:41:40,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:41:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:41:40,880 INFO L87 Difference]: Start difference. First operand 365 states and 491 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:41:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:41,187 INFO L93 Difference]: Finished difference Result 510 states and 703 transitions. [2021-11-12 22:41:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:41:41,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) Word has length 180 [2021-11-12 22:41:41,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:41,194 INFO L225 Difference]: With dead ends: 510 [2021-11-12 22:41:41,194 INFO L226 Difference]: Without dead ends: 447 [2021-11-12 22:41:41,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:41:41,196 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 147 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.21ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 280.96ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:41,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1993 Invalid, 44 Unknown, 0 Unchecked, 4.21ms Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 280.96ms Time] [2021-11-12 22:41:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-12 22:41:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 369. [2021-11-12 22:41:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 248 states have (on average 1.2580645161290323) internal successors, (312), 251 states have internal predecessors, (312), 85 states have call successors, (85), 32 states have call predecessors, (85), 35 states have return successors, (98), 85 states have call predecessors, (98), 84 states have call successors, (98) [2021-11-12 22:41:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 495 transitions. [2021-11-12 22:41:41,224 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 495 transitions. Word has length 180 [2021-11-12 22:41:41,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:41,225 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 495 transitions. [2021-11-12 22:41:41,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:41:41,226 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 495 transitions. [2021-11-12 22:41:41,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-12 22:41:41,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:41,229 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:41,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:41,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:41,454 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:41,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:41,454 INFO L85 PathProgramCache]: Analyzing trace with hash 99113150, now seen corresponding path program 1 times [2021-11-12 22:41:41,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:41,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663958994] [2021-11-12 22:41:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:41,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:41,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:41,461 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:41,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:41:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:46,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1980 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:41:46,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:46,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:41:47,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:47,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663958994] [2021-11-12 22:41:47,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663958994] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:47,285 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:47,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:41:47,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876299734] [2021-11-12 22:41:47,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:47,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:47,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:47,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:47,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:47,288 INFO L87 Difference]: Start difference. First operand 369 states and 495 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2021-11-12 22:41:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:47,367 INFO L93 Difference]: Finished difference Result 594 states and 795 transitions. [2021-11-12 22:41:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:47,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2021-11-12 22:41:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:47,373 INFO L225 Difference]: With dead ends: 594 [2021-11-12 22:41:47,373 INFO L226 Difference]: Without dead ends: 370 [2021-11-12 22:41:47,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:47,378 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.10ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:47,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 895 Invalid, 6 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 54.10ms Time] [2021-11-12 22:41:47,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-12 22:41:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-11-12 22:41:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 252 states have internal predecessors, (313), 85 states have call successors, (85), 32 states have call predecessors, (85), 35 states have return successors, (98), 85 states have call predecessors, (98), 84 states have call successors, (98) [2021-11-12 22:41:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 496 transitions. [2021-11-12 22:41:47,405 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 496 transitions. Word has length 182 [2021-11-12 22:41:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:47,407 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 496 transitions. [2021-11-12 22:41:47,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2021-11-12 22:41:47,407 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 496 transitions. [2021-11-12 22:41:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-12 22:41:47,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:47,411 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:47,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:47,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:47,638 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -554449091, now seen corresponding path program 1 times [2021-11-12 22:41:47,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:47,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071832577] [2021-11-12 22:41:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:47,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:47,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:47,643 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:47,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:41:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:52,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:41:52,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-12 22:41:54,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 22:41:57,381 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:57,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071832577] [2021-11-12 22:41:57,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071832577] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:57,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1987246922] [2021-11-12 22:41:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:57,381 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:41:57,383 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:41:57,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-12 22:41:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:59,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:41:59,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-12 22:42:00,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-12 22:42:00,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1987246922] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:00,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:42:00,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [13, 14] total 21 [2021-11-12 22:42:00,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301951753] [2021-11-12 22:42:00,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:00,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:42:00,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:00,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:42:00,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:42:00,777 INFO L87 Difference]: Start difference. First operand 370 states and 496 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:42:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:01,771 INFO L93 Difference]: Finished difference Result 648 states and 873 transitions. [2021-11-12 22:42:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:42:01,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 190 [2021-11-12 22:42:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:01,777 INFO L225 Difference]: With dead ends: 648 [2021-11-12 22:42:01,777 INFO L226 Difference]: Without dead ends: 370 [2021-11-12 22:42:01,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:42:01,779 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 816.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 875.13ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:01,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2522 Invalid, 186 Unknown, 0 Unchecked, 6.38ms Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 875.13ms Time] [2021-11-12 22:42:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-12 22:42:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-11-12 22:42:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 252 states have internal predecessors, (313), 85 states have call successors, (85), 32 states have call predecessors, (85), 35 states have return successors, (97), 85 states have call predecessors, (97), 84 states have call successors, (97) [2021-11-12 22:42:01,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 495 transitions. [2021-11-12 22:42:01,804 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 495 transitions. Word has length 190 [2021-11-12 22:42:01,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:01,805 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 495 transitions. [2021-11-12 22:42:01,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:42:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 495 transitions. [2021-11-12 22:42:01,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-12 22:42:01,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:01,808 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:01,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-12 22:42:02,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:02,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:02,220 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:02,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1974656624, now seen corresponding path program 1 times [2021-11-12 22:42:02,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:02,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282253845] [2021-11-12 22:42:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:02,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:02,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:02,227 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:02,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:42:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:07,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-12 22:42:07,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-12 22:42:08,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-12 22:42:09,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:09,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282253845] [2021-11-12 22:42:09,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282253845] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:09,740 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:09,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 13 [2021-11-12 22:42:09,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767114534] [2021-11-12 22:42:09,741 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:09,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 22:42:09,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:09,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 22:42:09,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:42:09,742 INFO L87 Difference]: Start difference. First operand 370 states and 495 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (34), 5 states have call predecessors, (34), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 22:42:12,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:14,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:15,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:16,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:18,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:20,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:21,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:23,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:24,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:25,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:25,915 INFO L93 Difference]: Finished difference Result 752 states and 1028 transitions. [2021-11-12 22:42:25,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:42:25,916 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (34), 5 states have call predecessors, (34), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 195 [2021-11-12 22:42:25,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:25,921 INFO L225 Difference]: With dead ends: 752 [2021-11-12 22:42:25,921 INFO L226 Difference]: Without dead ends: 475 [2021-11-12 22:42:25,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:42:25,923 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 166 mSDsluCounter, 4433 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15519.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 4935 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.09ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15687.28ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:25,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 4935 Invalid, 176 Unknown, 0 Unchecked, 23.09ms Time], IncrementalHoareTripleChecker [17 Valid, 157 Invalid, 2 Unknown, 0 Unchecked, 15687.28ms Time] [2021-11-12 22:42:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-12 22:42:25,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 417. [2021-11-12 22:42:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 283 states have (on average 1.2685512367491165) internal successors, (359), 288 states have internal predecessors, (359), 93 states have call successors, (93), 35 states have call predecessors, (93), 40 states have return successors, (108), 93 states have call predecessors, (108), 92 states have call successors, (108) [2021-11-12 22:42:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 560 transitions. [2021-11-12 22:42:25,947 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 560 transitions. Word has length 195 [2021-11-12 22:42:25,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:25,949 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 560 transitions. [2021-11-12 22:42:25,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (34), 5 states have call predecessors, (34), 2 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-12 22:42:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 560 transitions. [2021-11-12 22:42:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-12 22:42:25,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:25,951 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:26,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:26,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:26,174 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2106086778, now seen corresponding path program 1 times [2021-11-12 22:42:26,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:26,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436273088] [2021-11-12 22:42:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:26,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:26,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:26,181 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:26,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:42:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:30,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:42:30,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-12 22:42:31,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-12 22:42:31,611 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:31,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436273088] [2021-11-12 22:42:31,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436273088] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:31,611 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:31,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:42:31,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487623682] [2021-11-12 22:42:31,611 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:31,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:42:31,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:31,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:42:31,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:42:31,613 INFO L87 Difference]: Start difference. First operand 417 states and 560 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:42:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:31,743 INFO L93 Difference]: Finished difference Result 482 states and 644 transitions. [2021-11-12 22:42:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:42:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 189 [2021-11-12 22:42:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:31,747 INFO L225 Difference]: With dead ends: 482 [2021-11-12 22:42:31,747 INFO L226 Difference]: Without dead ends: 421 [2021-11-12 22:42:31,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:42:31,748 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 2 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:31,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1791 Invalid, 12 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 89.40ms Time] [2021-11-12 22:42:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-12 22:42:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-12 22:42:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 286 states have (on average 1.2657342657342658) internal successors, (362), 291 states have internal predecessors, (362), 93 states have call successors, (93), 35 states have call predecessors, (93), 41 states have return successors, (110), 94 states have call predecessors, (110), 92 states have call successors, (110) [2021-11-12 22:42:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 565 transitions. [2021-11-12 22:42:31,771 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 565 transitions. Word has length 189 [2021-11-12 22:42:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:31,772 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 565 transitions. [2021-11-12 22:42:31,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:42:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 565 transitions. [2021-11-12 22:42:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-12 22:42:31,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:31,774 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:31,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-12 22:42:31,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:31,998 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1800689494, now seen corresponding path program 1 times [2021-11-12 22:42:32,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:32,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672356255] [2021-11-12 22:42:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:32,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:32,004 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:32,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:42:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:36,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:42:36,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:42:37,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 22:42:37,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:37,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672356255] [2021-11-12 22:42:37,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672356255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:37,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:37,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 22:42:37,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651011513] [2021-11-12 22:42:37,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:37,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:42:37,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:42:37,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:42:37,803 INFO L87 Difference]: Start difference. First operand 421 states and 565 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:42:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:38,342 INFO L93 Difference]: Finished difference Result 577 states and 791 transitions. [2021-11-12 22:42:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:42:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) Word has length 186 [2021-11-12 22:42:38,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:38,349 INFO L225 Difference]: With dead ends: 577 [2021-11-12 22:42:38,349 INFO L226 Difference]: Without dead ends: 514 [2021-11-12 22:42:38,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:42:38,351 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 151 mSDsluCounter, 3526 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 363.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 4037 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.14ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 404.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:38,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 4037 Invalid, 75 Unknown, 0 Unchecked, 6.14ms Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 404.07ms Time] [2021-11-12 22:42:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-11-12 22:42:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 429. [2021-11-12 22:42:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 294 states have (on average 1.2653061224489797) internal successors, (372), 299 states have internal predecessors, (372), 93 states have call successors, (93), 35 states have call predecessors, (93), 41 states have return successors, (110), 94 states have call predecessors, (110), 92 states have call successors, (110) [2021-11-12 22:42:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 575 transitions. [2021-11-12 22:42:38,379 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 575 transitions. Word has length 186 [2021-11-12 22:42:38,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:38,380 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 575 transitions. [2021-11-12 22:42:38,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-12 22:42:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 575 transitions. [2021-11-12 22:42:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-12 22:42:38,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:38,383 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:38,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:38,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:38,597 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash 46512322, now seen corresponding path program 1 times [2021-11-12 22:42:38,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:38,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338370882] [2021-11-12 22:42:38,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:38,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:38,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:38,604 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:38,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ec6b5e-a9cd-40c7-9ae2-03a843f803b2/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process