./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:22:45,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:22:45,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:22:45,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:22:45,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:22:45,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:22:45,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:22:45,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:22:45,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:22:45,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:22:45,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:22:45,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:22:45,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:22:45,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:22:45,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:22:45,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:22:45,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:22:45,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:22:45,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:22:45,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:22:45,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:22:45,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:22:45,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:22:45,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:22:45,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:22:45,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:22:45,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:22:45,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:22:45,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:22:45,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:22:45,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:22:45,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:22:45,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:22:45,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:22:45,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:22:45,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:22:45,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:22:45,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:22:45,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:22:45,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:22:45,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:22:45,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:22:45,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:22:45,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:22:45,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:22:45,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:22:45,998 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:22:45,998 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:22:45,998 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:22:45,999 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:22:45,999 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:22:45,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:22:45,999 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:22:45,999 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:22:46,000 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:22:46,000 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:22:46,000 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:22:46,000 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:22:46,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:22:46,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:22:46,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:22:46,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:22:46,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:22:46,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:22:46,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:22:46,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:22:46,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:22:46,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:22:46,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:22:46,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:22:46,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:22:46,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:22:46,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:22:46,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:22:46,005 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-19 13:22:46,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:22:46,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:22:46,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:22:46,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:22:46,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:22:46,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-19 13:22:46,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/6742b81d4/2a4b8c9163194f79a66aa57b013dfe7d/FLAG7ec5cf0a2 [2021-11-19 13:22:47,488 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:22:47,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-19 13:22:47,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/6742b81d4/2a4b8c9163194f79a66aa57b013dfe7d/FLAG7ec5cf0a2 [2021-11-19 13:22:47,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/6742b81d4/2a4b8c9163194f79a66aa57b013dfe7d [2021-11-19 13:22:47,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:22:47,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:22:47,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:22:47,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:22:47,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:22:47,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:47" (1/1) ... [2021-11-19 13:22:47,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388e88a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:47, skipping insertion in model container [2021-11-19 13:22:47,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:47" (1/1) ... [2021-11-19 13:22:47,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:22:48,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:22:48,484 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-19 13:22:48,498 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-19 13:22:48,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:22:48,549 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:22:49,882 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,883 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,884 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,885 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,886 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,910 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,914 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,917 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,923 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,925 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,926 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,927 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:49,928 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:50,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:22:50,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:22:50,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:22:50,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:22:50,606 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:22:50,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:22:50,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:22:50,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:22:50,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:22:50,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:22:50,894 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:22:51,346 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,346 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,373 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,375 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,382 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,383 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,402 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,404 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,404 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,405 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,406 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,406 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,407 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:51,454 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:22:51,521 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) [2021-11-19 13:22:51,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e593111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:51, skipping insertion in model container [2021-11-19 13:22:51,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:22:51,523 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:22:51,527 INFO L158 Benchmark]: Toolchain (without parser) took 3640.49ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 67.7MB in the beginning and 96.8MB in the end (delta: -29.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-19 13:22:51,528 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 94.1MB in the beginning and 94.0MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:22:51,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3637.26ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 67.5MB in the beginning and 96.8MB in the end (delta: -29.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-19 13:22:51,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 94.1MB in the beginning and 94.0MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3637.26ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 67.5MB in the beginning and 96.8MB in the end (delta: -29.3MB). Peak memory consumption was 22.0MB. 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:22:54,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:22:54,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:22:54,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:22:54,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:22:54,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:22:54,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:22:54,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:22:54,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:22:54,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:22:54,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:22:54,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:22:54,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:22:54,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:22:54,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:22:54,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:22:54,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:22:54,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:22:54,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:22:54,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:22:54,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:22:54,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:22:54,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:22:54,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:22:54,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:22:54,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:22:54,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:22:54,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:22:54,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:22:54,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:22:54,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:22:54,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:22:54,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:22:54,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:22:54,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:22:54,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:22:54,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:22:54,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:22:54,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:22:54,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:22:54,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:22:54,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:22:54,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:22:54,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:22:54,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:22:54,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:22:54,521 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:22:54,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:22:54,522 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:22:54,522 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:22:54,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:22:54,523 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:22:54,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:22:54,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:22:54,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:22:54,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:22:54,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:22:54,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:22:54,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:22:54,528 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:22:54,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:22:54,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:22:54,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:22:54,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:22:54,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:22:54,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:22:54,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:22:54,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:22:54,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:22:54,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:22:54,531 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:22:54,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:22:54,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:22:54,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:22:54,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:22:54,532 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba6eb72b2235d93ac0dcdd3f0e672793184c4cf65112c581319750a174c5bca8 [2021-11-19 13:22:55,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:22:55,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:22:55,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:22:55,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:22:55,076 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:22:55,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-19 13:22:55,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/ec0128d63/87b5462e3db6411eb03c24883a0decf1/FLAG4acf43e0e [2021-11-19 13:22:56,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:22:56,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i [2021-11-19 13:22:56,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/ec0128d63/87b5462e3db6411eb03c24883a0decf1/FLAG4acf43e0e [2021-11-19 13:22:56,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/data/ec0128d63/87b5462e3db6411eb03c24883a0decf1 [2021-11-19 13:22:56,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:22:56,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:22:56,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:22:56,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:22:56,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:22:56,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:56" (1/1) ... [2021-11-19 13:22:56,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63737cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:22:56, skipping insertion in model container [2021-11-19 13:22:56,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:22:56" (1/1) ... [2021-11-19 13:22:56,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:22:56,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:22:57,285 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-19 13:22:57,297 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-19 13:22:57,339 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:22:57,351 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:22:58,984 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:58,989 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:58,990 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:58,991 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:58,992 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,026 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,028 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,033 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,036 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,041 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,042 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,046 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,047 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:22:59,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:22:59,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:22:59,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:22:59,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:22:59,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:22:59,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:22:59,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:22:59,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:22:59,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:22:59,714 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:22:59,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:23:00,412 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,413 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,440 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,441 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,449 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,449 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,472 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,474 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,475 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,476 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,476 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,477 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,478 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,550 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:23:00,619 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:23:00,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:23:00,691 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-19 13:23:00,691 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-19 13:23:00,695 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:23:00,700 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:23:00,785 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,787 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,788 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,789 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,791 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,805 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,806 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,808 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,808 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,810 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,810 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,811 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,811 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:00,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:23:00,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:23:00,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:23:00,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:23:00,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:23:00,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:23:00,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:23:00,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:23:00,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:23:00,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:23:00,907 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:23:01,096 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,096 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,105 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,106 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,108 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,109 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,118 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,119 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,119 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,120 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,120 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,121 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,121 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,146 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:23:01,169 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:23:01,185 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4493,4506] [2021-11-19 13:23:01,185 WARN L230 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_2f1a6e3e-6b3f-421d-9291-5538b6589093/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness.i[4553,4566] [2021-11-19 13:23:01,187 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:23:01,188 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:23:01,244 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,245 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,245 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,246 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,246 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,252 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,253 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,254 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,254 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,255 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,256 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,256 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,256 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:23:01,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:23:01,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:23:01,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:23:01,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:23:01,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:23:01,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:23:01,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:23:01,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:23:01,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:23:01,314 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:23:01,448 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,448 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,462 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,463 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,469 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,469 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,527 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,528 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,529 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,529 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,529 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,530 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,530 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:23:01,596 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:23:02,145 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:23:02,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02 WrapperNode [2021-11-19 13:23:02,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:23:02,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:23:02,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:23:02,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:23:02,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,438 INFO L137 Inliner]: procedures = 796, calls = 2434, calls flagged for inlining = 71, calls inlined = 12, statements flattened = 614 [2021-11-19 13:23:02,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:23:02,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:23:02,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:23:02,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:23:02,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:23:02,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:23:02,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:23:02,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:23:02,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (1/1) ... [2021-11-19 13:23:02,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:23:02,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:23:02,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:23:02,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:23:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-19 13:23:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 13:23:02,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 13:23:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:23:02,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:23:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-19 13:23:02,683 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-19 13:23:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:23:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:23:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:23:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:23:02,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:23:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 13:23:02,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 13:23:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 13:23:02,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 13:23:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-19 13:23:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:23:02,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:23:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:23:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-19 13:23:02,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-19 13:23:02,686 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 13:23:02,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:23:02,686 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 13:23:02,686 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 13:23:02,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-19 13:23:02,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-19 13:23:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:23:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:23:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:23:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-19 13:23:02,687 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-19 13:23:02,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:23:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:23:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:23:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:23:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:23:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:23:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-19 13:23:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-19 13:23:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:23:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 13:23:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 13:23:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-19 13:23:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-19 13:23:03,128 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:23:03,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:23:07,163 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:23:07,187 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:23:07,187 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 13:23:07,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:23:07 BoogieIcfgContainer [2021-11-19 13:23:07,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:23:07,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:23:07,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:23:07,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:23:07,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:22:56" (1/3) ... [2021-11-19 13:23:07,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179eac60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:23:07, skipping insertion in model container [2021-11-19 13:23:07,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:02" (2/3) ... [2021-11-19 13:23:07,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179eac60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:23:07, skipping insertion in model container [2021-11-19 13:23:07,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:23:07" (3/3) ... [2021-11-19 13:23:07,200 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness.i [2021-11-19 13:23:07,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:23:07,206 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:23:07,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:23:07,286 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 [2021-11-19 13:23:07,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:23:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-19 13:23:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 13:23:07,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:07,339 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 13:23:07,339 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash 133529182, now seen corresponding path program 1 times [2021-11-19 13:23:07,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:07,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321935835] [2021-11-19 13:23:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:07,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:07,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:07,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:07,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:23:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:08,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:23:08,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-19 13:23:09,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-11-19 13:23:09,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:09,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321935835] [2021-11-19 13:23:09,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321935835] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:09,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:09,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 13:23:09,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955838931] [2021-11-19 13:23:09,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:09,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:23:09,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:09,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:23:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:23:09,476 INFO L87 Difference]: Start difference. First operand has 122 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:09,536 INFO L93 Difference]: Finished difference Result 236 states and 310 transitions. [2021-11-19 13:23:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:23:09,538 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 135 [2021-11-19 13:23:09,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:09,550 INFO L225 Difference]: With dead ends: 236 [2021-11-19 13:23:09,551 INFO L226 Difference]: Without dead ends: 116 [2021-11-19 13:23:09,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:23:09,561 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:09,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-19 13:23:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-19 13:23:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 69 states have (on average 1.144927536231884) internal successors, (79), 70 states have internal predecessors, (79), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 13:23:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2021-11-19 13:23:09,646 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 135 [2021-11-19 13:23:09,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:09,647 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2021-11-19 13:23:09,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2021-11-19 13:23:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-19 13:23:09,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:09,663 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 13:23:09,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:23:09,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:09,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1119368280, now seen corresponding path program 1 times [2021-11-19 13:23:09,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:09,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054446946] [2021-11-19 13:23:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:09,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:09,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:09,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:09,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:23:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:10,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:10,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-11-19 13:23:11,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-11-19 13:23:11,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:11,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054446946] [2021-11-19 13:23:11,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054446946] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:11,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:11,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 13:23:11,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783777937] [2021-11-19 13:23:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:11,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:11,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:11,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:11,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:11,863 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:23:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:11,949 INFO L93 Difference]: Finished difference Result 224 states and 275 transitions. [2021-11-19 13:23:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:23:11,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2021-11-19 13:23:11,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:11,953 INFO L225 Difference]: With dead ends: 224 [2021-11-19 13:23:11,953 INFO L226 Difference]: Without dead ends: 120 [2021-11-19 13:23:11,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:11,956 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 2 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:11,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 556 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:11,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-19 13:23:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-19 13:23:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 73 states have internal predecessors, (82), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2021-11-19 13:23:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2021-11-19 13:23:11,994 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 141 [2021-11-19 13:23:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:11,995 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2021-11-19 13:23:11,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:23:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2021-11-19 13:23:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-19 13:23:12,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:12,003 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 13:23:12,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:12,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:12,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:12,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash 621379416, now seen corresponding path program 1 times [2021-11-19 13:23:12,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:12,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083605811] [2021-11-19 13:23:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:12,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:12,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:12,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:12,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:23:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:13,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:13,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-19 13:23:13,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-19 13:23:14,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:14,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083605811] [2021-11-19 13:23:14,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083605811] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:14,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:14,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 13:23:14,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300590556] [2021-11-19 13:23:14,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:14,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:23:14,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:14,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:23:14,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:23:14,172 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:23:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:14,431 INFO L93 Difference]: Finished difference Result 230 states and 279 transitions. [2021-11-19 13:23:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:14,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 153 [2021-11-19 13:23:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:14,437 INFO L225 Difference]: With dead ends: 230 [2021-11-19 13:23:14,437 INFO L226 Difference]: Without dead ends: 122 [2021-11-19 13:23:14,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:14,440 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 2 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:14,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 619 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:23:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-19 13:23:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-19 13:23:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 75 states have internal predecessors, (83), 32 states have call successors, (32), 14 states have call predecessors, (32), 16 states have return successors, (33), 32 states have call predecessors, (33), 31 states have call successors, (33) [2021-11-19 13:23:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 148 transitions. [2021-11-19 13:23:14,459 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 148 transitions. Word has length 153 [2021-11-19 13:23:14,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:14,460 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 148 transitions. [2021-11-19 13:23:14,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:23:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 148 transitions. [2021-11-19 13:23:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-19 13:23:14,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:14,464 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:14,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:14,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:14,690 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2040367895, now seen corresponding path program 1 times [2021-11-19 13:23:14,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:14,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602318687] [2021-11-19 13:23:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:14,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:14,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:14,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:14,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:23:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:15,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:23:15,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:16,015 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 [2021-11-19 13:23:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:23:17,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:17,867 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 [2021-11-19 13:23:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-11-19 13:23:18,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:18,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602318687] [2021-11-19 13:23:18,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602318687] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:18,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:18,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2021-11-19 13:23:18,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889626794] [2021-11-19 13:23:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:18,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:23:18,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:18,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:23:18,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:23:18,257 INFO L87 Difference]: Start difference. First operand 122 states and 148 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 13:23:18,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:18,899 INFO L93 Difference]: Finished difference Result 233 states and 281 transitions. [2021-11-19 13:23:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:23:18,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 158 [2021-11-19 13:23:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:18,903 INFO L225 Difference]: With dead ends: 233 [2021-11-19 13:23:18,903 INFO L226 Difference]: Without dead ends: 131 [2021-11-19 13:23:18,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:23:18,905 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 12 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:18,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 913 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 49 Unchecked, 0.5s Time] [2021-11-19 13:23:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-19 13:23:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-19 13:23:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.1481481481481481) internal successors, (93), 83 states have internal predecessors, (93), 32 states have call successors, (32), 15 states have call predecessors, (32), 17 states have return successors, (34), 32 states have call predecessors, (34), 31 states have call successors, (34) [2021-11-19 13:23:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 159 transitions. [2021-11-19 13:23:18,920 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 159 transitions. Word has length 158 [2021-11-19 13:23:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:18,921 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 159 transitions. [2021-11-19 13:23:18,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-19 13:23:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 159 transitions. [2021-11-19 13:23:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-19 13:23:18,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:18,924 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:18,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:19,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:19,149 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:19,150 INFO L85 PathProgramCache]: Analyzing trace with hash -377536171, now seen corresponding path program 1 times [2021-11-19 13:23:19,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:19,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357129627] [2021-11-19 13:23:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:19,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:19,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:19,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:19,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:23:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:20,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:20,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:23:20,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-11-19 13:23:21,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:21,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357129627] [2021-11-19 13:23:21,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357129627] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:21,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:21,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 13:23:21,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066740659] [2021-11-19 13:23:21,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:21,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:21,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:21,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:21,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:21,168 INFO L87 Difference]: Start difference. First operand 131 states and 159 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:21,275 INFO L93 Difference]: Finished difference Result 237 states and 289 transitions. [2021-11-19 13:23:21,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:23:21,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 158 [2021-11-19 13:23:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:21,279 INFO L225 Difference]: With dead ends: 237 [2021-11-19 13:23:21,279 INFO L226 Difference]: Without dead ends: 133 [2021-11-19 13:23:21,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:21,281 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 23 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:21,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 376 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:21,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-19 13:23:21,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-19 13:23:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 84 states have internal predecessors, (93), 33 states have call successors, (33), 15 states have call predecessors, (33), 17 states have return successors, (37), 33 states have call predecessors, (37), 32 states have call successors, (37) [2021-11-19 13:23:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 163 transitions. [2021-11-19 13:23:21,308 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 163 transitions. Word has length 158 [2021-11-19 13:23:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:21,309 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 163 transitions. [2021-11-19 13:23:21,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 163 transitions. [2021-11-19 13:23:21,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 13:23:21,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:21,312 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:21,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:21,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,522 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:21,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1657561512, now seen corresponding path program 1 times [2021-11-19 13:23:21,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:21,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56444560] [2021-11-19 13:23:21,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:21,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:21,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:21,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:23:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:22,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:23:22,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:22,869 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 [2021-11-19 13:23:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:23:23,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:25,009 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 [2021-11-19 13:23:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-11-19 13:23:25,369 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:25,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56444560] [2021-11-19 13:23:25,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56444560] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:25,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:25,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 17 [2021-11-19 13:23:25,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014770303] [2021-11-19 13:23:25,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:25,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:23:25,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:25,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:23:25,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:23:25,373 INFO L87 Difference]: Start difference. First operand 133 states and 163 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-19 13:23:27,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:28,792 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2021-11-19 13:23:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:23:28,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 164 [2021-11-19 13:23:28,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:28,797 INFO L225 Difference]: With dead ends: 248 [2021-11-19 13:23:28,797 INFO L226 Difference]: Without dead ends: 136 [2021-11-19 13:23:28,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:23:28,799 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 22 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:28,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 958 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 1 Unknown, 84 Unchecked, 3.2s Time] [2021-11-19 13:23:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-19 13:23:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-11-19 13:23:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 34 states have call successors, (34), 16 states have call predecessors, (34), 17 states have return successors, (38), 33 states have call predecessors, (38), 33 states have call successors, (38) [2021-11-19 13:23:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2021-11-19 13:23:28,819 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 164 [2021-11-19 13:23:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:28,820 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2021-11-19 13:23:28,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-19 13:23:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2021-11-19 13:23:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-19 13:23:28,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:28,825 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:28,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:29,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:29,042 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 819666307, now seen corresponding path program 1 times [2021-11-19 13:23:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:29,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116724363] [2021-11-19 13:23:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:29,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:29,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:29,045 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:29,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:23:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:30,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:30,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:23:30,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-19 13:23:31,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:31,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116724363] [2021-11-19 13:23:31,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116724363] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:31,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:31,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 13:23:31,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945191252] [2021-11-19 13:23:31,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:31,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:23:31,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:31,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:23:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:23:31,282 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:31,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:31,545 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2021-11-19 13:23:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:31,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 169 [2021-11-19 13:23:31,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:31,549 INFO L225 Difference]: With dead ends: 200 [2021-11-19 13:23:31,549 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 13:23:31,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:31,551 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 2 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:31,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 619 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:23:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 13:23:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-11-19 13:23:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.1125) internal successors, (89), 81 states have internal predecessors, (89), 34 states have call successors, (34), 16 states have call predecessors, (34), 15 states have return successors, (36), 32 states have call predecessors, (36), 33 states have call successors, (36) [2021-11-19 13:23:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 159 transitions. [2021-11-19 13:23:31,570 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 159 transitions. Word has length 169 [2021-11-19 13:23:31,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:31,571 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 159 transitions. [2021-11-19 13:23:31,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 159 transitions. [2021-11-19 13:23:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 13:23:31,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:31,575 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:31,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:31,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:31,802 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:31,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1756799102, now seen corresponding path program 1 times [2021-11-19 13:23:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:31,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850017077] [2021-11-19 13:23:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:31,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:31,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:31,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:23:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:33,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:23:33,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-11-19 13:23:33,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 13:23:34,240 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:34,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850017077] [2021-11-19 13:23:34,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850017077] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:34,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:34,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-19 13:23:34,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020690075] [2021-11-19 13:23:34,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:34,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:23:34,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:23:34,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:23:34,243 INFO L87 Difference]: Start difference. First operand 130 states and 159 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:23:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:34,517 INFO L93 Difference]: Finished difference Result 184 states and 227 transitions. [2021-11-19 13:23:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:23:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 174 [2021-11-19 13:23:34,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:34,521 INFO L225 Difference]: With dead ends: 184 [2021-11-19 13:23:34,521 INFO L226 Difference]: Without dead ends: 136 [2021-11-19 13:23:34,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:23:34,523 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 2 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:34,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 739 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:23:34,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-19 13:23:34,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2021-11-19 13:23:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 84 states have internal predecessors, (91), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (38), 32 states have call predecessors, (38), 33 states have call successors, (38) [2021-11-19 13:23:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 163 transitions. [2021-11-19 13:23:34,557 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 163 transitions. Word has length 174 [2021-11-19 13:23:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:34,558 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 163 transitions. [2021-11-19 13:23:34,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 13:23:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 163 transitions. [2021-11-19 13:23:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 13:23:34,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:34,565 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:34,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:34,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:34,794 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -595591135, now seen corresponding path program 1 times [2021-11-19 13:23:34,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:34,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114743823] [2021-11-19 13:23:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:34,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:34,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:34,798 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:34,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:23:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:36,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:23:36,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-19 13:23:37,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-19 13:23:38,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:38,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114743823] [2021-11-19 13:23:38,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114743823] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:38,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:38,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2021-11-19 13:23:38,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350728179] [2021-11-19 13:23:38,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:38,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:23:38,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:38,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:23:38,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:23:38,692 INFO L87 Difference]: Start difference. First operand 133 states and 163 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:40,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:42,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:23:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:43,695 INFO L93 Difference]: Finished difference Result 193 states and 237 transitions. [2021-11-19 13:23:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:23:43,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 180 [2021-11-19 13:23:43,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:43,700 INFO L225 Difference]: With dead ends: 193 [2021-11-19 13:23:43,701 INFO L226 Difference]: Without dead ends: 136 [2021-11-19 13:23:43,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:23:43,702 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 7 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:43,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 628 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 2 Unknown, 44 Unchecked, 4.7s Time] [2021-11-19 13:23:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-19 13:23:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2021-11-19 13:23:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 83 states have internal predecessors, (91), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (37), 32 states have call predecessors, (37), 32 states have call successors, (37) [2021-11-19 13:23:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 161 transitions. [2021-11-19 13:23:43,717 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 161 transitions. Word has length 180 [2021-11-19 13:23:43,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:43,719 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 161 transitions. [2021-11-19 13:23:43,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 13:23:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 161 transitions. [2021-11-19 13:23:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-19 13:23:43,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:43,723 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 13:23:43,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:43,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:43,949 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:43,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash 871217396, now seen corresponding path program 2 times [2021-11-19 13:23:43,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:43,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606103633] [2021-11-19 13:23:43,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:23:43,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:43,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:43,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:23:44,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:23:44,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:23:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:23:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:23:44,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:23:45,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:45,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606103633] [2021-11-19 13:23:45,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606103633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:45,250 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:45,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:23:45,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484290637] [2021-11-19 13:23:45,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:45,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:23:45,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:23:45,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:45,252 INFO L87 Difference]: Start difference. First operand 132 states and 161 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 13:23:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:45,329 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2021-11-19 13:23:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 185 [2021-11-19 13:23:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:45,333 INFO L225 Difference]: With dead ends: 184 [2021-11-19 13:23:45,333 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 13:23:45,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:23:45,334 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 4 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:45,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 413 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 13:23:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-19 13:23:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 84 states have (on average 1.1071428571428572) internal successors, (93), 85 states have internal predecessors, (93), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (37), 32 states have call predecessors, (37), 32 states have call successors, (37) [2021-11-19 13:23:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2021-11-19 13:23:45,349 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 185 [2021-11-19 13:23:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:45,350 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2021-11-19 13:23:45,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 13:23:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2021-11-19 13:23:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-19 13:23:45,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:45,353 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 13:23:45,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:45,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:45,578 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash -109706444, now seen corresponding path program 1 times [2021-11-19 13:23:45,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:45,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718682321] [2021-11-19 13:23:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:45,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:45,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:45,583 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:45,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:23:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:46,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:46,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:23:47,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:23:47,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:47,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718682321] [2021-11-19 13:23:47,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718682321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:23:47,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [853506676] [2021-11-19 13:23:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:47,797 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:23:47,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:23:47,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:23:47,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 13:23:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:50,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:23:50,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:23:51,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:23:51,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [853506676] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:23:51,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388463348] [2021-11-19 13:23:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:51,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:23:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:23:51,837 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:23:51,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 13:23:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:53,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:23:53,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:23:53,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:23:54,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388463348] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:23:54,125 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:23:54,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 13:23:54,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425533996] [2021-11-19 13:23:54,126 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:23:54,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:23:54,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:23:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:23:54,129 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:23:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:54,963 INFO L93 Difference]: Finished difference Result 188 states and 230 transitions. [2021-11-19 13:23:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:23:54,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 187 [2021-11-19 13:23:54,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:54,967 INFO L225 Difference]: With dead ends: 188 [2021-11-19 13:23:54,967 INFO L226 Difference]: Without dead ends: 138 [2021-11-19 13:23:54,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=122, Invalid=184, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:23:54,969 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 23 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:54,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 682 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:23:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-19 13:23:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-11-19 13:23:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.1022727272727273) internal successors, (97), 89 states have internal predecessors, (97), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (37), 32 states have call predecessors, (37), 32 states have call successors, (37) [2021-11-19 13:23:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2021-11-19 13:23:54,982 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 187 [2021-11-19 13:23:54,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:54,983 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2021-11-19 13:23:54,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:23:54,984 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2021-11-19 13:23:54,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-19 13:23:54,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:54,986 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 13:23:55,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:55,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-19 13:23:55,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-19 13:23:55,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:23:55,610 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:23:55,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:55,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1441654708, now seen corresponding path program 2 times [2021-11-19 13:23:55,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:55,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342629010] [2021-11-19 13:23:55,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:23:55,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:55,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:55,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:24:04,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:24:04,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:24:04,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:24:04,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:24:05,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:24:06,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:06,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342629010] [2021-11-19 13:24:06,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342629010] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:24:06,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [562048284] [2021-11-19 13:24:06,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:24:06,501 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:24:06,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:24:06,510 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:24:06,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-19 13:24:59,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:24:59,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:24:59,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:24:59,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:24:59,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:25:00,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [562048284] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:25:00,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160859187] [2021-11-19 13:25:00,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:25:00,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:25:00,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:25:00,443 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:25:00,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 13:25:32,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:25:32,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:25:32,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:25:32,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:32,730 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-19 13:25:32,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-19 13:25:34,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160859187] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:25:34,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:25:34,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 26 [2021-11-19 13:25:34,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705898625] [2021-11-19 13:25:34,092 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:25:34,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-19 13:25:34,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 13:25:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2021-11-19 13:25:34,095 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 26 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 26 states have internal predecessors, (90), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:25:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:36,744 INFO L93 Difference]: Finished difference Result 196 states and 242 transitions. [2021-11-19 13:25:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 13:25:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 26 states have internal predecessors, (90), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 191 [2021-11-19 13:25:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:36,747 INFO L225 Difference]: With dead ends: 196 [2021-11-19 13:25:36,747 INFO L226 Difference]: Without dead ends: 146 [2021-11-19 13:25:36,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 1116 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=334, Invalid=788, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 13:25:36,749 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 48 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:36,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 1095 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:25:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-19 13:25:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-19 13:25:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.1041666666666667) internal successors, (106), 97 states have internal predecessors, (106), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (37), 32 states have call predecessors, (37), 32 states have call successors, (37) [2021-11-19 13:25:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 176 transitions. [2021-11-19 13:25:36,763 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 176 transitions. Word has length 191 [2021-11-19 13:25:36,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:36,764 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 176 transitions. [2021-11-19 13:25:36,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 26 states have internal predecessors, (90), 2 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:25:36,765 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 176 transitions. [2021-11-19 13:25:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 13:25:36,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:36,767 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 13:25:36,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:37,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:37,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:37,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:25:37,383 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:25:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1675263500, now seen corresponding path program 3 times [2021-11-19 13:25:37,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:37,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762816686] [2021-11-19 13:25:37,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:25:37,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:37,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:37,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:37,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f1a6e3e-6b3f-421d-9291-5538b6589093/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 13:27:20,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-19 13:27:20,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:27:21,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-19 13:27:21,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:21,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9 [2021-11-19 13:27:22,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 43 [2021-11-19 13:27:22,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2021-11-19 13:30:09,815 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr1328_131| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_130| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_133| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_132| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_135| (_ BitVec 64)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_134| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_136| (_ BitVec 64)) (|v_#Ultimate.C_memset_#t~loopctr1328_129| (_ BitVec 64)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_129| |#Ultimate.C_memset_#ptr.offset|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_130| |#Ultimate.C_memset_#ptr.offset|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_131| |#Ultimate.C_memset_#ptr.offset|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_132| |#Ultimate.C_memset_#ptr.offset|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_133| |#Ultimate.C_memset_#ptr.offset|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_134| |#Ultimate.C_memset_#ptr.offset|)) (.cse7 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_135| |#Ultimate.C_memset_#ptr.offset|)) (.cse8 (bvadd |v_#Ultimate.C_memset_#t~loopctr1328_136| |#Ultimate.C_memset_#ptr.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 56) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1) .cse7 .cse1) .cse8 .cse1)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 64)) .cse2 (_ bv0 64)) .cse3 (_ bv0 64)) .cse4 (_ bv0 64)) .cse5 (_ bv0 64)) .cse6 (_ bv0 64)) .cse7 (_ bv0 64)) .cse8 (_ bv0 64))))))) is different from true [2021-11-19 13:35:03,177 WARN L227 SmtUtils]: Spent 4.82m on a formula simplification. DAG size of input: 205 DAG size of output: 66 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:35:03,179 INFO L354 Elim1Store]: treesize reduction 1899, result has 7.5 percent of original size [2021-11-19 13:35:03,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 156 treesize of output 244 [2021-11-19 13:35:55,170 WARN L227 SmtUtils]: Spent 51.95s on a formula simplification. DAG size of input: 203 DAG size of output: 55 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:35:55,171 INFO L354 Elim1Store]: treesize reduction 1832, result has 6.1 percent of original size [2021-11-19 13:35:55,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 242 treesize of output 309