./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:10,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:10,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:10,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:10,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:10,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:10,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:10,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:10,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:10,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:10,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:10,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:10,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:10,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:10,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:10,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:10,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:10,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:10,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:10,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:10,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:10,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:10,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:10,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:10,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:10,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:10,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:10,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:10,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:10,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:10,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:10,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:10,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:10,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:10,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:10,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:10,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:10,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:10,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:10,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:10,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:10,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:41:10,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:10,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:10,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:10,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:10,657 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:10,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:10,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:10,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:41:10,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:10,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:10,665 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:41:10,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:41:10,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:10,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:41:10,666 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:41:10,667 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:41:10,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:10,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:41:10,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:10,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:10,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:10,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:10,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:10,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:10,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:10,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:10,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:10,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:10,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:10,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:10,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:10,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:10,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:41:10,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:41:10,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:10,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:10,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:10,678 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 [2021-11-12 22:41:10,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:10,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:10,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:10,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:11,000 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:11,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-12 22:41:11,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/585aaaca0/1e89d7bbfcfa429887f2c76cab7f8c9e/FLAG05ca692d2 [2021-11-12 22:41:11,940 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:11,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-12 22:41:11,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/585aaaca0/1e89d7bbfcfa429887f2c76cab7f8c9e/FLAG05ca692d2 [2021-11-12 22:41:12,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/585aaaca0/1e89d7bbfcfa429887f2c76cab7f8c9e [2021-11-12 22:41:12,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:12,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:12,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:12,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:12,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:12,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f69e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12, skipping insertion in model container [2021-11-12 22:41:12,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:12,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:12,951 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-12 22:41:12,960 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-12 22:41:12,993 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:41:13,001 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:41:14,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:14,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:41:14,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:41:14,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:41:14,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:41:14,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:41:14,729 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:41:14,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:41:14,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:41:14,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:41:14,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:41:14,983 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:41:15,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:15,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:15,618 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 22:41:15,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28b5beb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:15, skipping insertion in model container [2021-11-12 22:41:15,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:15,620 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:41:15,622 INFO L158 Benchmark]: Toolchain (without parser) took 3163.04ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 66.9MB in the beginning and 81.9MB in the end (delta: -15.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-11-12 22:41:15,623 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 88.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:15,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3160.07ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 66.8MB in the beginning and 81.9MB in the end (delta: -15.2MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-11-12 22:41:15,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 88.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3160.07ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 66.8MB in the beginning and 81.9MB in the end (delta: -15.2MB). Peak memory consumption was 23.7MB. 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:17,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:17,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:18,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:18,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:18,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:18,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:18,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:18,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:18,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:18,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:18,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:18,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:18,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:18,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:18,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:18,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:18,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:18,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:18,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:18,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:18,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:18,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:18,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:18,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:18,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:18,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:18,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:18,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:18,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:18,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:18,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:18,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:18,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:18,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:18,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:18,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:18,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:18,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:18,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:18,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:18,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:41:18,184 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:18,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:18,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:18,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:18,187 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:18,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:18,187 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:18,187 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:18,187 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:18,188 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:18,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:18,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:18,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:18,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:18,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:18,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:18,192 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:41:18,192 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:41:18,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:18,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:18,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:18,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:18,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:41:18,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:18,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:18,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:18,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:18,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:18,194 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:41:18,194 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:18,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:18,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:18,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:18,195 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66d360c8c29bda7e5219dac4b14837aec8d465009822b05f671b68702d836670 [2021-11-12 22:41:18,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:18,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:18,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:18,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:18,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:18,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-12 22:41:18,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/1d26cc21e/61a16e3b1a1649768ba8e33d60d4bf8d/FLAG968f3dba3 [2021-11-12 22:41:19,664 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:19,665 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2021-11-12 22:41:19,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/1d26cc21e/61a16e3b1a1649768ba8e33d60d4bf8d/FLAG968f3dba3 [2021-11-12 22:41:20,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/data/1d26cc21e/61a16e3b1a1649768ba8e33d60d4bf8d [2021-11-12 22:41:20,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:20,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:20,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:20,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:20,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:20,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:20" (1/1) ... [2021-11-12 22:41:20,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391af7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:20, skipping insertion in model container [2021-11-12 22:41:20,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:20" (1/1) ... [2021-11-12 22:41:20,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:20,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:20,644 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-12 22:41:20,657 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-12 22:41:20,701 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:41:20,711 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:41:21,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:21,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:22,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:41:22,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:41:22,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:41:22,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:41:22,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:41:22,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:41:22,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:41:22,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:41:22,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:41:22,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:41:22,847 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:41:23,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:23,474 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:41:23,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:23,560 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-12 22:41:23,561 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-12 22:41:23,562 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:41:23,563 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:41:23,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:41:23,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:41:23,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:41:23,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:41:23,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:41:23,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:41:23,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:41:23,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:41:23,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:41:23,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:41:23,704 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:41:23,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:23,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:24,057 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:24,087 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2021-11-12 22:41:24,087 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_e49f1e75-ead3-4446-baac-fb812ae0a9e9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2021-11-12 22:41:24,090 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:41:24,091 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:41:24,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:41:24,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:41:24,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:41:24,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:41:24,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:41:24,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:41:24,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:41:24,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:41:24,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:41:24,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:41:24,250 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:41:24,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:41:24,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:24,745 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:24,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24 WrapperNode [2021-11-12 22:41:24,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:24,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:24,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:24,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:24,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:24,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:25,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:25,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:25,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:25,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:25,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:25,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:25,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:25,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (1/1) ... [2021-11-12 22:41:25,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:25,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:25,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:25,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 22:41:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2021-11-12 22:41:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2021-11-12 22:41:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:41:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:41:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-12 22:41:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-12 22:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:41:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:41:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:41:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:41:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:41:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 22:41:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 22:41:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 22:41:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:41:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:41:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:41:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:41:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2021-11-12 22:41:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2021-11-12 22:41:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-12 22:41:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-12 22:41:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2021-11-12 22:41:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2021-11-12 22:41:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2021-11-12 22:41:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2021-11-12 22:41:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-12 22:41:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-12 22:41:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2021-11-12 22:41:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2021-11-12 22:41:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2021-11-12 22:41:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2021-11-12 22:41:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:41:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:41:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2021-11-12 22:41:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2021-11-12 22:41:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:41:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:41:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:41:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:41:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-12 22:41:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-12 22:41:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:41:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2021-11-12 22:41:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2021-11-12 22:41:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:41:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:41:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 22:41:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 22:41:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2021-11-12 22:41:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2021-11-12 22:41:26,169 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2021-11-12 22:41:26,567 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2021-11-12 22:41:39,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !true; [2021-11-12 22:41:39,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !true; [2021-11-12 22:41:39,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2021-11-12 22:41:39,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume !true; [2021-11-12 22:41:39,472 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume !true; [2021-11-12 22:41:39,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:41:39,519 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-12 22:41:39,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:39 BoogieIcfgContainer [2021-11-12 22:41:39,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:41:39,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:41:39,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:41:39,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:41:39,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:41:20" (1/3) ... [2021-11-12 22:41:39,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13301617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:39, skipping insertion in model container [2021-11-12 22:41:39,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:24" (2/3) ... [2021-11-12 22:41:39,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13301617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:39, skipping insertion in model container [2021-11-12 22:41:39,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:39" (3/3) ... [2021-11-12 22:41:39,531 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_eq_harness.i [2021-11-12 22:41:39,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:41:39,537 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:41:39,593 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:41:39,599 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 22:41:39,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:41:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 276 states, 172 states have (on average 1.2267441860465116) internal successors, (211), 166 states have internal predecessors, (211), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2021-11-12 22:41:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-12 22:41:39,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:39,643 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:41:39,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:39,649 INFO L85 PathProgramCache]: Analyzing trace with hash 448295814, now seen corresponding path program 1 times [2021-11-12 22:41:39,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:39,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007564935] [2021-11-12 22:41:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:39,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:39,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:39,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:39,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:41:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:44,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:41:44,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2021-11-12 22:41:44,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2021-11-12 22:41:45,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:45,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007564935] [2021-11-12 22:41:45,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007564935] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:45,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:41:45,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:41:45,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268993685] [2021-11-12 22:41:45,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:45,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:41:45,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:41:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:45,837 INFO L87 Difference]: Start difference. First operand has 276 states, 172 states have (on average 1.2267441860465116) internal successors, (211), 166 states have internal predecessors, (211), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:41:45,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:45,899 INFO L93 Difference]: Finished difference Result 548 states and 807 transitions. [2021-11-12 22:41:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:41:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 281 [2021-11-12 22:41:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:45,914 INFO L225 Difference]: With dead ends: 548 [2021-11-12 22:41:45,914 INFO L226 Difference]: Without dead ends: 270 [2021-11-12 22:41:45,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 560 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 22:41:45,926 INFO L933 BasicCegarLoop]: 370 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, 370 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:45,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.44ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:41:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-12 22:41:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2021-11-12 22:41:45,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.2125) internal successors, (194), 161 states have internal predecessors, (194), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2021-11-12 22:41:45,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 365 transitions. [2021-11-12 22:41:45,999 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 365 transitions. Word has length 281 [2021-11-12 22:41:46,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:46,000 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 365 transitions. [2021-11-12 22:41:46,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 22:41:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 365 transitions. [2021-11-12 22:41:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-12 22:41:46,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:46,007 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:41:46,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:41:46,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:46,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1090035532, now seen corresponding path program 1 times [2021-11-12 22:41:46,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:46,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254701322] [2021-11-12 22:41:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:46,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:46,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:46,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:46,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:41:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:51,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:41:51,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2021-11-12 22:41:52,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2021-11-12 22:41:53,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:53,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254701322] [2021-11-12 22:41:53,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254701322] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:53,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:41:53,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:41:53,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020525642] [2021-11-12 22:41:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:53,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:41:53,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:53,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:41:53,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:41:53,586 INFO L87 Difference]: Start difference. First operand 270 states and 365 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-12 22:41:53,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:53,767 INFO L93 Difference]: Finished difference Result 541 states and 737 transitions. [2021-11-12 22:41:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:41:53,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 281 [2021-11-12 22:41:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:53,773 INFO L225 Difference]: With dead ends: 541 [2021-11-12 22:41:53,774 INFO L226 Difference]: Without dead ends: 274 [2021-11-12 22:41:53,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 557 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 22:41:53,777 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 2 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:53,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1448 Invalid, 11 Unknown, 0 Unchecked, 29.35ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 63.56ms Time] [2021-11-12 22:41:53,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-12 22:41:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-12 22:41:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 164 states have internal predecessors, (197), 86 states have call successors, (86), 23 states have call predecessors, (86), 24 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2021-11-12 22:41:53,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 369 transitions. [2021-11-12 22:41:53,822 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 369 transitions. Word has length 281 [2021-11-12 22:41:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:53,824 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 369 transitions. [2021-11-12 22:41:53,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-12 22:41:53,825 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 369 transitions. [2021-11-12 22:41:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-12 22:41:53,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:53,833 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:41:53,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:54,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:54,058 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 224607552, now seen corresponding path program 1 times [2021-11-12 22:41:54,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:54,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245573729] [2021-11-12 22:41:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:54,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:54,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:54,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:54,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:41:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:58,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:41:58,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2021-11-12 22:41:59,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2021-11-12 22:42:01,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:01,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245573729] [2021-11-12 22:42:01,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245573729] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:01,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:01,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:42:01,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197268655] [2021-11-12 22:42:01,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:01,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:42:01,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:01,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:42:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:42:01,225 INFO L87 Difference]: Start difference. First operand 274 states and 369 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 22:42:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:01,765 INFO L93 Difference]: Finished difference Result 548 states and 741 transitions. [2021-11-12 22:42:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:42:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 305 [2021-11-12 22:42:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:01,772 INFO L225 Difference]: With dead ends: 548 [2021-11-12 22:42:01,773 INFO L226 Difference]: Without dead ends: 276 [2021-11-12 22:42:01,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:42:01,776 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 2 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 415.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.49ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 453.16ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:01,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1672 Invalid, 147 Unknown, 0 Unchecked, 13.49ms Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 453.16ms Time] [2021-11-12 22:42:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-12 22:42:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2021-11-12 22:42:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 166 states have internal predecessors, (198), 86 states have call successors, (86), 23 states have call predecessors, (86), 25 states have return successors, (87), 86 states have call predecessors, (87), 85 states have call successors, (87) [2021-11-12 22:42:01,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 371 transitions. [2021-11-12 22:42:01,832 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 371 transitions. Word has length 305 [2021-11-12 22:42:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:01,833 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 371 transitions. [2021-11-12 22:42:01,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 22:42:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 371 transitions. [2021-11-12 22:42:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-12 22:42:01,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:01,842 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:01,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:02,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:02,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:02,067 INFO L85 PathProgramCache]: Analyzing trace with hash 947024628, now seen corresponding path program 1 times [2021-11-12 22:42:02,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:02,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893154429] [2021-11-12 22:42:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:02,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:02,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:02,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:42:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:07,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 2358 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:42:07,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:07,535 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 22:42:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-11-12 22:42:09,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:11,044 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 22:42:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2021-11-12 22:42:11,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:11,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893154429] [2021-11-12 22:42:11,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893154429] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:11,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:11,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2021-11-12 22:42:11,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892880816] [2021-11-12 22:42:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:11,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:42:11,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:42:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:42:11,476 INFO L87 Difference]: Start difference. First operand 276 states and 371 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-12 22:42:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:12,237 INFO L93 Difference]: Finished difference Result 560 states and 751 transitions. [2021-11-12 22:42:12,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:42:12,239 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) Word has length 315 [2021-11-12 22:42:12,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:12,243 INFO L225 Difference]: With dead ends: 560 [2021-11-12 22:42:12,243 INFO L226 Difference]: Without dead ends: 285 [2021-11-12 22:42:12,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:42:12,246 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 19 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 598.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 625.68ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:12,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1777 Invalid, 76 Unknown, 0 Unchecked, 9.70ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 51 Unchecked, 625.68ms Time] [2021-11-12 22:42:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-11-12 22:42:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-11-12 22:42:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 172 states have (on average 1.2093023255813953) internal successors, (208), 174 states have internal predecessors, (208), 86 states have call successors, (86), 24 states have call predecessors, (86), 26 states have return successors, (88), 86 states have call predecessors, (88), 85 states have call successors, (88) [2021-11-12 22:42:12,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 382 transitions. [2021-11-12 22:42:12,274 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 382 transitions. Word has length 315 [2021-11-12 22:42:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:12,275 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 382 transitions. [2021-11-12 22:42:12,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-12 22:42:12,276 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 382 transitions. [2021-11-12 22:42:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-12 22:42:12,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:12,284 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:12,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:12,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:12,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:12,499 INFO L85 PathProgramCache]: Analyzing trace with hash 605345714, now seen corresponding path program 1 times [2021-11-12 22:42:12,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:12,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308955641] [2021-11-12 22:42:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:12,504 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:12,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:12,506 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:12,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:42:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:17,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 2355 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:42:17,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-11-12 22:42:18,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2021-11-12 22:42:19,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:19,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308955641] [2021-11-12 22:42:19,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308955641] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:19,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:19,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:42:19,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287276483] [2021-11-12 22:42:19,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:19,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:42:19,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:19,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:42:19,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:42:19,509 INFO L87 Difference]: Start difference. First operand 285 states and 382 transitions. Second operand has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-12 22:42:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:19,970 INFO L93 Difference]: Finished difference Result 564 states and 773 transitions. [2021-11-12 22:42:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:42:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 315 [2021-11-12 22:42:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:19,975 INFO L225 Difference]: With dead ends: 564 [2021-11-12 22:42:19,975 INFO L226 Difference]: Without dead ends: 287 [2021-11-12 22:42:19,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 625 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 22:42:19,979 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 59 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 382.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.19ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:19,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1321 Invalid, 98 Unknown, 0 Unchecked, 8.30ms Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 421.19ms Time] [2021-11-12 22:42:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-12 22:42:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-11-12 22:42:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 173 states have (on average 1.2023121387283238) internal successors, (208), 175 states have internal predecessors, (208), 87 states have call successors, (87), 24 states have call predecessors, (87), 26 states have return successors, (103), 87 states have call predecessors, (103), 86 states have call successors, (103) [2021-11-12 22:42:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 398 transitions. [2021-11-12 22:42:20,009 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 398 transitions. Word has length 315 [2021-11-12 22:42:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:20,010 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 398 transitions. [2021-11-12 22:42:20,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.0) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-12 22:42:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 398 transitions. [2021-11-12 22:42:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-12 22:42:20,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:20,014 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:20,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:20,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:20,235 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1717919787, now seen corresponding path program 1 times [2021-11-12 22:42:20,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:20,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375538853] [2021-11-12 22:42:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:20,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:20,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:20,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:20,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:42:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:25,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 2372 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:42:25,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:25,459 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 22:42:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-11-12 22:42:27,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:29,524 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 22:42:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2021-11-12 22:42:29,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:29,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375538853] [2021-11-12 22:42:29,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375538853] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:29,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:29,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 18 [2021-11-12 22:42:29,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812743624] [2021-11-12 22:42:29,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:29,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 22:42:29,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:29,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 22:42:29,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:42:29,875 INFO L87 Difference]: Start difference. First operand 287 states and 398 transitions. Second operand has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (49), 3 states have call predecessors, (49), 6 states have return successors, (48), 6 states have call predecessors, (48), 5 states have call successors, (48) [2021-11-12 22:42:32,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:34,231 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 22:42:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:36,003 INFO L93 Difference]: Finished difference Result 575 states and 797 transitions. [2021-11-12 22:42:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:42:36,005 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (49), 3 states have call predecessors, (49), 6 states have return successors, (48), 6 states have call predecessors, (48), 5 states have call successors, (48) Word has length 321 [2021-11-12 22:42:36,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:36,010 INFO L225 Difference]: With dead ends: 575 [2021-11-12 22:42:36,010 INFO L226 Difference]: Without dead ends: 290 [2021-11-12 22:42:36,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:42:36,013 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 9 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5752.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.15ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 242 IncrementalHoareTripleChecker+Unchecked, 5959.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:36,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 3618 Invalid, 350 Unknown, 0 Unchecked, 13.15ms Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 2 Unknown, 242 Unchecked, 5959.69ms Time] [2021-11-12 22:42:36,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-12 22:42:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-12 22:42:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 175 states have (on average 1.2) internal successors, (210), 177 states have internal predecessors, (210), 88 states have call successors, (88), 25 states have call predecessors, (88), 26 states have return successors, (104), 87 states have call predecessors, (104), 87 states have call successors, (104) [2021-11-12 22:42:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 402 transitions. [2021-11-12 22:42:36,038 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 402 transitions. Word has length 321 [2021-11-12 22:42:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:36,039 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 402 transitions. [2021-11-12 22:42:36,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (49), 3 states have call predecessors, (49), 6 states have return successors, (48), 6 states have call predecessors, (48), 5 states have call successors, (48) [2021-11-12 22:42:36,040 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 402 transitions. [2021-11-12 22:42:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-12 22:42:36,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:36,044 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:36,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:36,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:36,254 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 870325970, now seen corresponding path program 1 times [2021-11-12 22:42:36,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:36,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514923276] [2021-11-12 22:42:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:36,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:36,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:36,259 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:36,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:42:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:41,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 2389 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:42:41,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-12 22:42:41,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 17 proven. 43 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2021-11-12 22:42:43,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:43,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514923276] [2021-11-12 22:42:43,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514923276] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:43,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:43,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-12 22:42:43,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952138766] [2021-11-12 22:42:43,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:43,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:42:43,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:43,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:42:43,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:42:43,050 INFO L87 Difference]: Start difference. First operand 290 states and 402 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-12 22:42:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:43,574 INFO L93 Difference]: Finished difference Result 567 states and 789 transitions. [2021-11-12 22:42:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:42:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 326 [2021-11-12 22:42:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:43,579 INFO L225 Difference]: With dead ends: 567 [2021-11-12 22:42:43,579 INFO L226 Difference]: Without dead ends: 288 [2021-11-12 22:42:43,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:42:43,582 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 2 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 422.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 457.74ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:43,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1672 Invalid, 147 Unknown, 0 Unchecked, 5.82ms Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 457.74ms Time] [2021-11-12 22:42:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-12 22:42:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 284. [2021-11-12 22:42:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 171 states have (on average 1.1929824561403508) internal successors, (204), 172 states have internal predecessors, (204), 88 states have call successors, (88), 25 states have call predecessors, (88), 24 states have return successors, (102), 86 states have call predecessors, (102), 87 states have call successors, (102) [2021-11-12 22:42:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 394 transitions. [2021-11-12 22:42:43,604 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 394 transitions. Word has length 326 [2021-11-12 22:42:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:43,605 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 394 transitions. [2021-11-12 22:42:43,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-12 22:42:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 394 transitions. [2021-11-12 22:42:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-12 22:42:43,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:43,659 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:42:43,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:43,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:43,859 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:43,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:43,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1951086534, now seen corresponding path program 1 times [2021-11-12 22:42:43,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:43,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567190868] [2021-11-12 22:42:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:43,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:43,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:43,866 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:43,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:42:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:48,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:42:49,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:49,661 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 22:42:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-12 22:42:50,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:52,010 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 22:42:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2021-11-12 22:42:52,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:52,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567190868] [2021-11-12 22:42:52,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567190868] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:42:52,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:42:52,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2021-11-12 22:42:52,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563675825] [2021-11-12 22:42:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:52,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:42:52,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:52,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:42:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:42:52,608 INFO L87 Difference]: Start difference. First operand 284 states and 394 transitions. Second operand has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 9 states have internal predecessors, (109), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (49), 5 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-12 22:42:54,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:56,843 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 22:42:58,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:58,525 INFO L93 Difference]: Finished difference Result 536 states and 745 transitions. [2021-11-12 22:42:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:42:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 9 states have internal predecessors, (109), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (49), 5 states have call predecessors, (49), 4 states have call successors, (49) Word has length 336 [2021-11-12 22:42:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:58,530 INFO L225 Difference]: With dead ends: 536 [2021-11-12 22:42:58,530 INFO L226 Difference]: Without dead ends: 288 [2021-11-12 22:42:58,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:42:58,533 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 6 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5574.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.75ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 5784.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:58,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 2662 Invalid, 189 Unknown, 0 Unchecked, 7.75ms Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 2 Unknown, 74 Unchecked, 5784.17ms Time] [2021-11-12 22:42:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-12 22:42:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-11-12 22:42:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 175 states have (on average 1.1942857142857144) internal successors, (209), 175 states have internal predecessors, (209), 88 states have call successors, (88), 26 states have call predecessors, (88), 24 states have return successors, (102), 86 states have call predecessors, (102), 87 states have call successors, (102) [2021-11-12 22:42:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 399 transitions. [2021-11-12 22:42:58,553 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 399 transitions. Word has length 336 [2021-11-12 22:42:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:58,554 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 399 transitions. [2021-11-12 22:42:58,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 9 states have internal predecessors, (109), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (49), 5 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-12 22:42:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 399 transitions. [2021-11-12 22:42:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-12 22:42:58,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:58,557 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:42:58,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:58,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:58,774 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:58,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:58,774 INFO L85 PathProgramCache]: Analyzing trace with hash 726440312, now seen corresponding path program 1 times [2021-11-12 22:42:58,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:58,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924196791] [2021-11-12 22:42:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:58,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:58,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:58,779 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:58,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:43:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:03,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:43:03,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2021-11-12 22:43:04,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-11-12 22:43:05,747 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:05,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924196791] [2021-11-12 22:43:05,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924196791] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:43:05,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:43:05,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:43:05,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804619153] [2021-11-12 22:43:05,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:05,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:43:05,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:05,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:43:05,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:05,750 INFO L87 Difference]: Start difference. First operand 288 states and 399 transitions. Second operand has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 22:43:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:06,193 INFO L93 Difference]: Finished difference Result 533 states and 741 transitions. [2021-11-12 22:43:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:43:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 336 [2021-11-12 22:43:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:06,198 INFO L225 Difference]: With dead ends: 533 [2021-11-12 22:43:06,199 INFO L226 Difference]: Without dead ends: 288 [2021-11-12 22:43:06,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:43:06,201 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 57 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 374.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.86ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 411.90ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:06,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1322 Invalid, 90 Unknown, 0 Unchecked, 4.86ms Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 411.90ms Time] [2021-11-12 22:43:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-12 22:43:06,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-11-12 22:43:06,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 175 states have (on average 1.1942857142857144) internal successors, (209), 175 states have internal predecessors, (209), 88 states have call successors, (88), 26 states have call predecessors, (88), 24 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2021-11-12 22:43:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 396 transitions. [2021-11-12 22:43:06,221 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 396 transitions. Word has length 336 [2021-11-12 22:43:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:06,222 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 396 transitions. [2021-11-12 22:43:06,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 22:43:06,223 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 396 transitions. [2021-11-12 22:43:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-12 22:43:06,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:06,226 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:43:06,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:06,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:06,450 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:43:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1622214181, now seen corresponding path program 1 times [2021-11-12 22:43:06,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:06,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680751142] [2021-11-12 22:43:06,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:43:06,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:06,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:06,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:06,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:43:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:43:11,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:43:11,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:43:12,275 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 22:43:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-12 22:43:13,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:43:15,158 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 22:43:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 26 proven. 30 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2021-11-12 22:43:15,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:43:15,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680751142] [2021-11-12 22:43:15,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680751142] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:43:15,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:43:15,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 18 [2021-11-12 22:43:15,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7750756] [2021-11-12 22:43:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:43:15,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 22:43:15,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:43:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 22:43:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:43:15,784 INFO L87 Difference]: Start difference. First operand 288 states and 396 transitions. Second operand has 13 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 5 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (50), 6 states have call predecessors, (50), 5 states have call successors, (50) [2021-11-12 22:43:17,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:43:19,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:43:19,178 INFO L93 Difference]: Finished difference Result 552 states and 758 transitions. [2021-11-12 22:43:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:43:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 5 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (50), 6 states have call predecessors, (50), 5 states have call successors, (50) Word has length 342 [2021-11-12 22:43:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:43:19,184 INFO L225 Difference]: With dead ends: 552 [2021-11-12 22:43:19,184 INFO L226 Difference]: Without dead ends: 291 [2021-11-12 22:43:19,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:43:19,187 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 14 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2994.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 3142.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:43:19,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 2107 Invalid, 186 Unknown, 0 Unchecked, 5.22ms Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 1 Unknown, 121 Unchecked, 3142.36ms Time] [2021-11-12 22:43:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-12 22:43:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 284. [2021-11-12 22:43:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 171 states have (on average 1.1929824561403508) internal successors, (204), 172 states have internal predecessors, (204), 88 states have call successors, (88), 25 states have call predecessors, (88), 24 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2021-11-12 22:43:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 391 transitions. [2021-11-12 22:43:19,209 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 391 transitions. Word has length 342 [2021-11-12 22:43:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:43:19,210 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 391 transitions. [2021-11-12 22:43:19,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 states have internal predecessors, (113), 5 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (50), 6 states have call predecessors, (50), 5 states have call successors, (50) [2021-11-12 22:43:19,210 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 391 transitions. [2021-11-12 22:43:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-12 22:43:19,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:43:19,214 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:43:19,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:43:19,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:43:19,438 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:43:19,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:43:19,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1674881120, now seen corresponding path program 2 times [2021-11-12 22:43:19,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:43:19,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400147789] [2021-11-12 22:43:19,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:43:19,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:43:19,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:43:19,443 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:43:19,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e49f1e75-ead3-4446-baac-fb812ae0a9e9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process