./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a20f0fb44c1e014f700b9e4b1558eda154ddd78bb739e07c9e4f28b94fe2d47f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:53:17,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:53:17,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:53:17,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:53:17,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:53:17,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:53:17,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:53:17,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:53:17,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:53:17,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:53:17,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:53:17,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:53:17,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:53:17,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:53:17,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:53:17,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:53:17,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:53:17,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:53:17,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:53:17,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:53:17,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:53:17,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:53:17,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:53:17,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:53:17,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:53:17,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:53:17,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:53:17,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:53:17,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:53:17,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:53:17,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:53:17,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:53:17,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:53:17,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:53:17,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:53:17,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:53:17,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:53:17,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:53:17,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:53:17,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:53:17,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:53:17,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:53:17,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:53:17,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:53:17,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:53:17,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:53:17,838 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:53:17,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:53:17,839 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:53:17,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:53:17,840 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:53:17,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:53:17,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:53:17,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:53:17,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:53:17,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:53:17,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:53:17,843 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:53:17,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:53:17,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:53:17,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:53:17,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:53:17,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:53:17,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:53:17,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:53:17,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:53:17,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:53:17,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:53:17,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:53:17,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:53:17,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:53:17,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:53:17,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:53:17,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:53:17,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:53:17,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:53:17,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:53:17,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:53:17,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:53:17,851 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_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a20f0fb44c1e014f700b9e4b1558eda154ddd78bb739e07c9e4f28b94fe2d47f [2021-11-12 22:53:18,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:53:18,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:53:18,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:53:18,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:53:18,125 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:53:18,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i [2021-11-12 22:53:18,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/157e081e6/5a6a9c3a617d4b639c390155e73d5b2e/FLAG88f6a61c2 [2021-11-12 22:53:19,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:53:19,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i [2021-11-12 22:53:19,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/157e081e6/5a6a9c3a617d4b639c390155e73d5b2e/FLAG88f6a61c2 [2021-11-12 22:53:19,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/157e081e6/5a6a9c3a617d4b639c390155e73d5b2e [2021-11-12 22:53:19,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:53:19,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:53:19,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:53:19,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:53:19,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:53:19,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:53:19" (1/1) ... [2021-11-12 22:53:19,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537e0fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:19, skipping insertion in model container [2021-11-12 22:53:19,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:53:19" (1/1) ... [2021-11-12 22:53:19,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:53:19,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:53:19,992 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4501,4514] [2021-11-12 22:53:20,001 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4561,4574] [2021-11-12 22:53:20,027 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:53:20,036 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:53:21,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:21,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:53:21,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:53:21,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:53:21,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:53:21,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:53:21,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:53:21,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:53:21,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:53:21,727 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:53:21,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:53:21,944 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:53:22,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:22,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:53:22,558 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:53:22,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f9507bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:22, skipping insertion in model container [2021-11-12 22:53:22,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:53:22,560 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:53:22,561 INFO L158 Benchmark]: Toolchain (without parser) took 3029.70ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 57.6MB in the beginning and 63.0MB in the end (delta: -5.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-12 22:53:22,579 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:53:22,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3027.39ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 57.3MB in the beginning and 63.0MB in the end (delta: -5.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-12 22:53:22,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3027.39ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 57.3MB in the beginning and 63.0MB in the end (delta: -5.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a20f0fb44c1e014f700b9e4b1558eda154ddd78bb739e07c9e4f28b94fe2d47f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:53:24,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:53:24,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:53:24,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:53:24,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:53:24,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:53:24,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:53:24,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:53:24,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:53:24,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:53:24,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:53:24,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:53:24,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:53:24,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:53:24,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:53:24,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:53:24,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:53:24,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:53:24,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:53:24,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:53:24,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:53:24,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:53:24,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:53:24,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:53:24,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:53:24,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:53:24,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:53:24,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:53:24,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:53:24,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:53:24,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:53:24,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:53:24,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:53:24,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:53:24,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:53:24,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:53:24,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:53:24,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:53:24,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:53:24,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:53:24,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:53:24,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:53:24,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:53:24,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:53:24,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:53:24,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:53:24,989 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:53:24,990 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:53:24,990 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:53:24,990 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:53:24,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:53:24,990 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:53:24,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:53:24,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:53:24,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:53:24,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:53:24,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:53:24,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:53:24,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:53:24,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:53:24,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:53:24,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:53:24,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:53:24,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:53:24,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:53:24,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:53:24,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:53:24,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:53:24,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:53:24,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:53:24,997 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:53:24,997 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:53:24,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:53:24,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:53:24,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:53:24,998 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_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a20f0fb44c1e014f700b9e4b1558eda154ddd78bb739e07c9e4f28b94fe2d47f [2021-11-12 22:53:25,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:53:25,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:53:25,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:53:25,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:53:25,391 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:53:25,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i [2021-11-12 22:53:25,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/36507e749/a28f206d35a4460992754f601dbeabec/FLAGa23ce940b [2021-11-12 22:53:26,479 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:53:26,480 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i [2021-11-12 22:53:26,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/36507e749/a28f206d35a4460992754f601dbeabec/FLAGa23ce940b [2021-11-12 22:53:26,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/data/36507e749/a28f206d35a4460992754f601dbeabec [2021-11-12 22:53:26,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:53:26,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:53:26,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:53:26,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:53:26,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:53:26,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:53:26" (1/1) ... [2021-11-12 22:53:26,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a8562a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:26, skipping insertion in model container [2021-11-12 22:53:26,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:53:26" (1/1) ... [2021-11-12 22:53:26,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:53:27,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:53:27,399 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4501,4514] [2021-11-12 22:53:27,408 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4561,4574] [2021-11-12 22:53:27,443 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:53:27,451 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:53:28,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:28,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:53:29,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:53:29,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:53:29,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:53:29,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:53:29,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:53:29,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:53:29,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:53:29,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:53:29,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:53:29,446 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:53:29,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:29,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:53:30,047 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:53:30,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:53:30,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4501,4514] [2021-11-12 22:53:30,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4561,4574] [2021-11-12 22:53:30,241 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:53:30,242 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:53:30,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:53:30,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:53:30,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:53:30,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:53:30,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:53:30,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:53:30,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:53:30,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:53:30,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:53:30,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:53:30,358 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:53:30,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:53:30,681 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:53:30,695 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4501,4514] [2021-11-12 22:53:30,695 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/sv-benchmarks/c/aws-c-common/aws_hash_table_init_bounded_harness.i[4561,4574] [2021-11-12 22:53:30,696 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:53:30,697 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:53:30,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:53:30,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:53:30,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:53:30,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:53:30,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:53:30,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:53:30,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:53:30,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:53:30,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:53:30,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:53:30,844 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:53:30,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:30,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:53:31,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:53:31,387 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:53:31,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31 WrapperNode [2021-11-12 22:53:31,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:53:31,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:53:31,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:53:31,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:53:31,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:53:31,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:53:31,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:53:31,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:53:31,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:53:31,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:53:31,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:53:31,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:53:31,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (1/1) ... [2021-11-12 22:53:31,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:53:31,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:53:31,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:53:31,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:53:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 22:53:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:53:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:53:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:53:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:53:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:53:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:53:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-12 22:53:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-12 22:53:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:53:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:53:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:53:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:53:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:53:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:53:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 22:53:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:53:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 22:53:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 22:53:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:53:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:53:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:53:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:53:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-12 22:53:31,992 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-12 22:53:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2021-11-12 22:53:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2021-11-12 22:53:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:53:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:53:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:53:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-12 22:53:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-12 22:53:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2021-11-12 22:53:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2021-11-12 22:53:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-12 22:53:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-12 22:53:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:53:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:53:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-12 22:53:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:53:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:53:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:53:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-12 22:53:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-12 22:53:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:53:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 22:53:31,996 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 22:53:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:53:31,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:53:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 22:53:31,996 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 22:53:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2021-11-12 22:53:31,997 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2021-11-12 22:53:51,809 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-11-12 22:53:51,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:53:51,850 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 22:53:51,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:51 BoogieIcfgContainer [2021-11-12 22:53:51,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:53:51,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:53:51,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:53:51,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:53:51,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:53:26" (1/3) ... [2021-11-12 22:53:51,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e298e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:51, skipping insertion in model container [2021-11-12 22:53:51,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:53:31" (2/3) ... [2021-11-12 22:53:51,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e298e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:53:51, skipping insertion in model container [2021-11-12 22:53:51,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:53:51" (3/3) ... [2021-11-12 22:53:51,862 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_bounded_harness.i [2021-11-12 22:53:51,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:53:51,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:53:51,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:53:51,948 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:53:51,949 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:53:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 107 states have internal predecessors, (131), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-12 22:53:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-12 22:53:51,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:51,987 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:51,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:51,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:51,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2137378214, now seen corresponding path program 1 times [2021-11-12 22:53:52,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:52,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91702409] [2021-11-12 22:53:52,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:52,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:52,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:52,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:53:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:55,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:53:55,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-12 22:53:56,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-12 22:53:56,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:56,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91702409] [2021-11-12 22:53:56,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91702409] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:53:56,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:53:56,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:53:56,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479589374] [2021-11-12 22:53:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:56,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:53:56,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:53:56,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:53:56,591 INFO L87 Difference]: Start difference. First operand has 164 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 107 states have internal predecessors, (131), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 22:53:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:56,634 INFO L93 Difference]: Finished difference Result 322 states and 423 transitions. [2021-11-12 22:53:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:53:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-11-12 22:53:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:56,653 INFO L225 Difference]: With dead ends: 322 [2021-11-12 22:53:56,654 INFO L226 Difference]: Without dead ends: 155 [2021-11-12 22:53:56,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:53:56,667 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:56,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:53:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-12 22:53:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-12 22:53:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 99 states have internal predecessors, (118), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:53:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2021-11-12 22:53:56,749 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 70 [2021-11-12 22:53:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:56,751 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2021-11-12 22:53:56,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 22:53:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2021-11-12 22:53:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-12 22:53:56,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:56,763 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:56,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:56,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,964 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:53:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1333359956, now seen corresponding path program 1 times [2021-11-12 22:53:56,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:56,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444615370] [2021-11-12 22:53:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:56,972 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:56,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:57,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:54:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:00,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:00,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:00,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:01,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:01,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444615370] [2021-11-12 22:54:01,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444615370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:01,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:01,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:54:01,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024108944] [2021-11-12 22:54:01,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:01,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:01,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:01,292 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:01,610 INFO L93 Difference]: Finished difference Result 298 states and 367 transitions. [2021-11-12 22:54:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2021-11-12 22:54:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:01,621 INFO L225 Difference]: With dead ends: 298 [2021-11-12 22:54:01,623 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:01,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:54:01,626 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 47 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.31ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211.01ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:01,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 738 Invalid, 25 Unknown, 0 Unchecked, 11.31ms Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 211.01ms Time] [2021-11-12 22:54:01,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2021-11-12 22:54:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 101 states have (on average 1.188118811881188) internal successors, (120), 102 states have internal predecessors, (120), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:54:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 195 transitions. [2021-11-12 22:54:01,656 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 195 transitions. Word has length 70 [2021-11-12 22:54:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:01,657 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 195 transitions. [2021-11-12 22:54:01,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 195 transitions. [2021-11-12 22:54:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 22:54:01,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:01,665 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:01,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:01,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:01,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash 453354162, now seen corresponding path program 1 times [2021-11-12 22:54:01,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:01,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487015513] [2021-11-12 22:54:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:01,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:01,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:01,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:54:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:05,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1571 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:05,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:05,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:06,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:06,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487015513] [2021-11-12 22:54:06,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487015513] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:06,080 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:06,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:54:06,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213522031] [2021-11-12 22:54:06,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:06,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:06,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:06,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:06,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:06,082 INFO L87 Difference]: Start difference. First operand 158 states and 195 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:08,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:08,345 INFO L93 Difference]: Finished difference Result 288 states and 350 transitions. [2021-11-12 22:54:08,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:08,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2021-11-12 22:54:08,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:08,357 INFO L225 Difference]: With dead ends: 288 [2021-11-12 22:54:08,357 INFO L226 Difference]: Without dead ends: 160 [2021-11-12 22:54:08,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:08,359 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2167.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2225.24ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:08,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 566 Invalid, 7 Unknown, 0 Unchecked, 4.17ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2225.24ms Time] [2021-11-12 22:54:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-12 22:54:08,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-11-12 22:54:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 104 states have internal predecessors, (122), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:54:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 197 transitions. [2021-11-12 22:54:08,384 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 197 transitions. Word has length 71 [2021-11-12 22:54:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:08,385 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 197 transitions. [2021-11-12 22:54:08,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 197 transitions. [2021-11-12 22:54:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 22:54:08,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:08,387 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:08,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:54:08,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:08,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:08,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:08,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2016490577, now seen corresponding path program 1 times [2021-11-12 22:54:08,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:08,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708312082] [2021-11-12 22:54:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:08,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:08,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:08,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:08,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:54:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:12,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:12,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:12,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:13,068 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:13,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708312082] [2021-11-12 22:54:13,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708312082] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:13,069 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:13,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:54:13,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734798662] [2021-11-12 22:54:13,069 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:13,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:13,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:13,071 INFO L87 Difference]: Start difference. First operand 160 states and 197 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:13,115 INFO L93 Difference]: Finished difference Result 205 states and 246 transitions. [2021-11-12 22:54:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-11-12 22:54:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:13,118 INFO L225 Difference]: With dead ends: 205 [2021-11-12 22:54:13,118 INFO L226 Difference]: Without dead ends: 163 [2021-11-12 22:54:13,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:13,120 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.68ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:13,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 6 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 30.68ms Time] [2021-11-12 22:54:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-12 22:54:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-11-12 22:54:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 105 states have (on average 1.180952380952381) internal successors, (124), 106 states have internal predecessors, (124), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (38), 38 states have call predecessors, (38), 37 states have call successors, (38) [2021-11-12 22:54:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2021-11-12 22:54:13,142 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 73 [2021-11-12 22:54:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:13,143 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2021-11-12 22:54:13,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 22:54:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2021-11-12 22:54:13,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-12 22:54:13,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:13,147 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:13,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:13,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:13,371 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash -258777056, now seen corresponding path program 1 times [2021-11-12 22:54:13,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:13,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006918708] [2021-11-12 22:54:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:13,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:13,377 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:13,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:54:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:16,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:16,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:17,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:17,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:17,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006918708] [2021-11-12 22:54:17,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006918708] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:17,434 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:17,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:54:17,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848760574] [2021-11-12 22:54:17,434 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:17,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:17,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:17,436 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 22:54:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:17,511 INFO L93 Difference]: Finished difference Result 205 states and 245 transitions. [2021-11-12 22:54:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:17,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 77 [2021-11-12 22:54:17,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:17,517 INFO L225 Difference]: With dead ends: 205 [2021-11-12 22:54:17,517 INFO L226 Difference]: Without dead ends: 163 [2021-11-12 22:54:17,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:54:17,518 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 2 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.22ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:17,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 567 Invalid, 9 Unknown, 0 Unchecked, 2.64ms Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 37.22ms Time] [2021-11-12 22:54:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-12 22:54:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2021-11-12 22:54:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 104 states have internal predecessors, (120), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:54:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 195 transitions. [2021-11-12 22:54:17,541 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 195 transitions. Word has length 77 [2021-11-12 22:54:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:17,543 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 195 transitions. [2021-11-12 22:54:17,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 22:54:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 195 transitions. [2021-11-12 22:54:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-12 22:54:17,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:17,549 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:17,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:17,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:17,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1597436769, now seen corresponding path program 1 times [2021-11-12 22:54:17,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:17,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19650887] [2021-11-12 22:54:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:17,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:17,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:17,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:54:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:22,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1695 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:22,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:22,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:23,032 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:23,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19650887] [2021-11-12 22:54:23,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19650887] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:23,032 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:23,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:54:23,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434077212] [2021-11-12 22:54:23,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:23,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:23,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:23,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:23,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:23,034 INFO L87 Difference]: Start difference. First operand 160 states and 195 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 22:54:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:23,136 INFO L93 Difference]: Finished difference Result 270 states and 325 transitions. [2021-11-12 22:54:23,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:54:23,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2021-11-12 22:54:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:23,140 INFO L225 Difference]: With dead ends: 270 [2021-11-12 22:54:23,140 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:23,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:23,142 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 2 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:23,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 748 Invalid, 11 Unknown, 0 Unchecked, 6.41ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 60.36ms Time] [2021-11-12 22:54:23,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:23,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-11-12 22:54:23,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 107 states have internal predecessors, (123), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (40), 38 states have call predecessors, (40), 37 states have call successors, (40) [2021-11-12 22:54:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2021-11-12 22:54:23,155 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 201 transitions. Word has length 93 [2021-11-12 22:54:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:23,156 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 201 transitions. [2021-11-12 22:54:23,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 22:54:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 201 transitions. [2021-11-12 22:54:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-12 22:54:23,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:23,158 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:23,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:23,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:23,378 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash 759556510, now seen corresponding path program 1 times [2021-11-12 22:54:23,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:23,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103021497] [2021-11-12 22:54:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:23,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:23,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:23,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:23,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:54:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:27,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:54:27,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:27,923 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:27,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 22:54:28,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:28,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103021497] [2021-11-12 22:54:28,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103021497] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:28,337 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:28,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:54:28,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205417311] [2021-11-12 22:54:28,337 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:28,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:28,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:28,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:28,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:28,339 INFO L87 Difference]: Start difference. First operand 164 states and 201 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:54:30,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:30,485 INFO L93 Difference]: Finished difference Result 213 states and 255 transitions. [2021-11-12 22:54:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:54:30,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2021-11-12 22:54:30,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:30,493 INFO L225 Difference]: With dead ends: 213 [2021-11-12 22:54:30,493 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:30,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:30,494 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2096.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2134.33ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:30,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 750 Invalid, 9 Unknown, 0 Unchecked, 2.57ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2134.33ms Time] [2021-11-12 22:54:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-11-12 22:54:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 107 states have internal predecessors, (121), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (40), 38 states have call predecessors, (40), 37 states have call successors, (40) [2021-11-12 22:54:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2021-11-12 22:54:30,507 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 99 [2021-11-12 22:54:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:30,507 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2021-11-12 22:54:30,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:54:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2021-11-12 22:54:30,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 22:54:30,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:30,510 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-11-12 22:54:30,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:30,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:30,727 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash 240160653, now seen corresponding path program 1 times [2021-11-12 22:54:30,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:30,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332886498] [2021-11-12 22:54:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:30,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:30,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:30,731 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:30,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:54:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:35,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:54:35,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-12 22:54:35,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:54:36,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:36,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332886498] [2021-11-12 22:54:36,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332886498] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:36,084 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:36,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:54:36,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410821080] [2021-11-12 22:54:36,084 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:36,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:36,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:36,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:36,086 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:54:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:36,132 INFO L93 Difference]: Finished difference Result 273 states and 324 transitions. [2021-11-12 22:54:36,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:36,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 133 [2021-11-12 22:54:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:36,136 INFO L225 Difference]: With dead ends: 273 [2021-11-12 22:54:36,136 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:36,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:36,138 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:36,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 745 Invalid, 4 Unknown, 0 Unchecked, 2.19ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 32.36ms Time] [2021-11-12 22:54:36,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2021-11-12 22:54:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 104 states have internal predecessors, (116), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:54:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2021-11-12 22:54:36,149 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 133 [2021-11-12 22:54:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:36,150 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2021-11-12 22:54:36,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 22:54:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2021-11-12 22:54:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-12 22:54:36,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:36,152 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-11-12 22:54:36,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:54:36,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:36,367 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1990015031, now seen corresponding path program 1 times [2021-11-12 22:54:36,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:36,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611262204] [2021-11-12 22:54:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:36,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:36,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:36,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:54:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:41,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:41,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-12 22:54:41,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-12 22:54:41,953 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:41,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611262204] [2021-11-12 22:54:41,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611262204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:41,954 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:41,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:54:41,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778096770] [2021-11-12 22:54:41,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:41,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:41,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:41,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:41,957 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:54:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:42,059 INFO L93 Difference]: Finished difference Result 215 states and 254 transitions. [2021-11-12 22:54:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:54:42,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 138 [2021-11-12 22:54:42,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:42,065 INFO L225 Difference]: With dead ends: 215 [2021-11-12 22:54:42,065 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:42,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:42,066 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 2 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.96ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:42,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 731 Invalid, 12 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 60.96ms Time] [2021-11-12 22:54:42,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-11-12 22:54:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.1226415094339623) internal successors, (119), 107 states have internal predecessors, (119), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (40), 38 states have call predecessors, (40), 37 states have call successors, (40) [2021-11-12 22:54:42,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 197 transitions. [2021-11-12 22:54:42,086 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 197 transitions. Word has length 138 [2021-11-12 22:54:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:42,087 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 197 transitions. [2021-11-12 22:54:42,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:54:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 197 transitions. [2021-11-12 22:54:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-12 22:54:42,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:42,091 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:42,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:42,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:42,318 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash -185263910, now seen corresponding path program 1 times [2021-11-12 22:54:42,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:42,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252877730] [2021-11-12 22:54:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:42,323 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:42,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:42,324 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:42,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:54:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:46,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:54:47,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:54:47,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:54:47,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:47,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252877730] [2021-11-12 22:54:47,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252877730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:47,713 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:47,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:54:47,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499404393] [2021-11-12 22:54:47,714 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:47,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:47,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:47,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:47,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:47,716 INFO L87 Difference]: Start difference. First operand 164 states and 197 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 22:54:49,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:54:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:49,886 INFO L93 Difference]: Finished difference Result 215 states and 253 transitions. [2021-11-12 22:54:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2021-11-12 22:54:49,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:49,888 INFO L225 Difference]: With dead ends: 215 [2021-11-12 22:54:49,888 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 22:54:49,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:49,890 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2078.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2125.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:49,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 552 Invalid, 6 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2125.30ms Time] [2021-11-12 22:54:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 22:54:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2021-11-12 22:54:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.116504854368932) internal successors, (115), 104 states have internal predecessors, (115), 38 states have call successors, (38), 18 states have call predecessors, (38), 18 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 22:54:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2021-11-12 22:54:49,902 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 144 [2021-11-12 22:54:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2021-11-12 22:54:49,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 22:54:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2021-11-12 22:54:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-12 22:54:49,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:49,907 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:49,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:50,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:50,127 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2081845916, now seen corresponding path program 1 times [2021-11-12 22:54:50,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:50,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253164329] [2021-11-12 22:54:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:50,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:50,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:50,131 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:50,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:54:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:54,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:54:54,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:54:55,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:54:56,110 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:56,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253164329] [2021-11-12 22:54:56,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253164329] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:56,110 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:56,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 22:54:56,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652452353] [2021-11-12 22:54:56,110 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:56,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:54:56,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:54:56,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:56,112 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:54:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:56,244 INFO L93 Difference]: Finished difference Result 222 states and 258 transitions. [2021-11-12 22:54:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 151 [2021-11-12 22:54:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:56,247 INFO L225 Difference]: With dead ends: 222 [2021-11-12 22:54:56,248 INFO L226 Difference]: Without dead ends: 170 [2021-11-12 22:54:56,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:56,249 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 6 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.83ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.24ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:56,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 898 Invalid, 24 Unknown, 0 Unchecked, 2.83ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 118.24ms Time] [2021-11-12 22:54:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-12 22:54:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2021-11-12 22:54:56,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 108 states have internal predecessors, (119), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (38), 38 states have call predecessors, (38), 37 states have call successors, (38) [2021-11-12 22:54:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2021-11-12 22:54:56,262 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 151 [2021-11-12 22:54:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:56,263 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2021-11-12 22:54:56,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:54:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2021-11-12 22:54:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 22:54:56,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:56,266 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:56,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:56,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:56,482 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:54:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1669736624, now seen corresponding path program 1 times [2021-11-12 22:54:56,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:56,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013751459] [2021-11-12 22:54:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:56,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:56,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:56,487 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:56,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:55:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:01,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:55:01,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:55:01,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-12 22:55:02,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:02,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013751459] [2021-11-12 22:55:02,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013751459] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:02,563 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:02,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-12 22:55:02,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840129302] [2021-11-12 22:55:02,563 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:02,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:55:02,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:02,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:55:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:55:02,565 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 22:55:04,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:04,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:04,865 INFO L93 Difference]: Finished difference Result 217 states and 252 transitions. [2021-11-12 22:55:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:55:04,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 157 [2021-11-12 22:55:04,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:04,903 INFO L225 Difference]: With dead ends: 217 [2021-11-12 22:55:04,903 INFO L226 Difference]: Without dead ends: 158 [2021-11-12 22:55:04,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:55:04,906 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 3 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2172.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2183.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:04,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1252 Invalid, 40 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2183.51ms Time] [2021-11-12 22:55:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-12 22:55:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-12 22:55:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 102 states have (on average 1.0980392156862746) internal successors, (112), 103 states have internal predecessors, (112), 37 states have call successors, (37), 18 states have call predecessors, (37), 18 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-11-12 22:55:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2021-11-12 22:55:04,914 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 157 [2021-11-12 22:55:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:04,915 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2021-11-12 22:55:04,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-12 22:55:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2021-11-12 22:55:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-12 22:55:04,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:04,917 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:55:04,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:05,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:05,117 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:55:05,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:05,118 INFO L85 PathProgramCache]: Analyzing trace with hash 2096599602, now seen corresponding path program 1 times [2021-11-12 22:55:05,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:05,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600659142] [2021-11-12 22:55:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:05,121 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:05,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:05,122 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:05,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:55:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:10,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:55:10,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:11,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 22:55:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:12,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:14,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:14,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600659142] [2021-11-12 22:55:14,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600659142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:14,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:14,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 17] imperfect sequences [] total 22 [2021-11-12 22:55:14,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456216280] [2021-11-12 22:55:14,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:14,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 22:55:14,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:14,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 22:55:14,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:55:14,744 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 19 states have internal predecessors, (80), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-12 22:55:16,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:18,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:21,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:23,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:25,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:27,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:31,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:31,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:31,614 INFO L93 Difference]: Finished difference Result 222 states and 257 transitions. [2021-11-12 22:55:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 22:55:31,617 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 19 states have internal predecessors, (80), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2021-11-12 22:55:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:31,619 INFO L225 Difference]: With dead ends: 222 [2021-11-12 22:55:31,620 INFO L226 Difference]: Without dead ends: 175 [2021-11-12 22:55:31,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:55:31,621 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 39 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16060.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 16344.05ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:31,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2613 Invalid, 233 Unknown, 0 Unchecked, 7.54ms Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 7 Unknown, 69 Unchecked, 16344.05ms Time] [2021-11-12 22:55:31,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-12 22:55:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2021-11-12 22:55:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1071428571428572) internal successors, (124), 114 states have internal predecessors, (124), 37 states have call successors, (37), 19 states have call predecessors, (37), 20 states have return successors, (38), 36 states have call predecessors, (38), 36 states have call successors, (38) [2021-11-12 22:55:31,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 199 transitions. [2021-11-12 22:55:31,634 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 199 transitions. Word has length 175 [2021-11-12 22:55:31,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:31,634 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 199 transitions. [2021-11-12 22:55:31,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.6363636363636362) internal successors, (80), 19 states have internal predecessors, (80), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-12 22:55:31,635 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 199 transitions. [2021-11-12 22:55:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-12 22:55:31,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:31,638 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:55:31,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-12 22:55:31,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:31,847 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:55:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:31,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1703572592, now seen corresponding path program 1 times [2021-11-12 22:55:31,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:31,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500554850] [2021-11-12 22:55:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:31,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:31,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:31,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:31,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:55:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:36,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:55:36,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:37,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:38,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:38,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500554850] [2021-11-12 22:55:38,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500554850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:38,113 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:38,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:55:38,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862624848] [2021-11-12 22:55:38,114 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:38,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:55:38,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:38,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:55:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:38,115 INFO L87 Difference]: Start difference. First operand 170 states and 199 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 22:55:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:38,222 INFO L93 Difference]: Finished difference Result 227 states and 263 transitions. [2021-11-12 22:55:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:55:38,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2021-11-12 22:55:38,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:38,225 INFO L225 Difference]: With dead ends: 227 [2021-11-12 22:55:38,225 INFO L226 Difference]: Without dead ends: 175 [2021-11-12 22:55:38,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:55:38,227 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 14 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.06ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:38,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 687 Invalid, 19 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 96.06ms Time] [2021-11-12 22:55:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-12 22:55:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2021-11-12 22:55:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.0990990990990992) internal successors, (122), 112 states have internal predecessors, (122), 38 states have call successors, (38), 19 states have call predecessors, (38), 19 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2021-11-12 22:55:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 198 transitions. [2021-11-12 22:55:38,239 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 198 transitions. Word has length 175 [2021-11-12 22:55:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:38,240 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 198 transitions. [2021-11-12 22:55:38,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 22:55:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 198 transitions. [2021-11-12 22:55:38,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-12 22:55:38,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:38,245 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:55:38,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:38,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:38,458 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:55:38,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1969922582, now seen corresponding path program 1 times [2021-11-12 22:55:38,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:38,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959387461] [2021-11-12 22:55:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:38,464 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:38,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:38,469 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:38,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:55:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:43,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2015 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 22:55:43,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:44,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 22:55:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:46,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-12 22:55:48,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:48,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959387461] [2021-11-12 22:55:48,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959387461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:48,494 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:55:48,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 18] imperfect sequences [] total 24 [2021-11-12 22:55:48,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679478628] [2021-11-12 22:55:48,495 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:48,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-12 22:55:48,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-12 22:55:48,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:55:48,496 INFO L87 Difference]: Start difference. First operand 169 states and 198 transitions. Second operand has 24 states, 22 states have (on average 4.0) internal successors, (88), 21 states have internal predecessors, (88), 5 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 22:55:50,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:52,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:55,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:58,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:55:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:58,481 INFO L93 Difference]: Finished difference Result 242 states and 280 transitions. [2021-11-12 22:55:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 22:55:58,485 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.0) internal successors, (88), 21 states have internal predecessors, (88), 5 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) Word has length 181 [2021-11-12 22:55:58,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:58,487 INFO L225 Difference]: With dead ends: 242 [2021-11-12 22:55:58,487 INFO L226 Difference]: Without dead ends: 185 [2021-11-12 22:55:58,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:55:58,488 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 29 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9262.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.81ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 9498.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:58,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 3034 Invalid, 215 Unknown, 0 Unchecked, 6.81ms Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 4 Unknown, 65 Unchecked, 9498.64ms Time] [2021-11-12 22:55:58,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-12 22:55:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 174. [2021-11-12 22:55:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 114 states have (on average 1.0964912280701755) internal successors, (125), 116 states have internal predecessors, (125), 39 states have call successors, (39), 20 states have call predecessors, (39), 20 states have return successors, (41), 37 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-12 22:55:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2021-11-12 22:55:58,499 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 181 [2021-11-12 22:55:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:58,500 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2021-11-12 22:55:58,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.0) internal successors, (88), 21 states have internal predecessors, (88), 5 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 22:55:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2021-11-12 22:55:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-12 22:55:58,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:58,503 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:55:58,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:58,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:58,722 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:55:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash 962470544, now seen corresponding path program 1 times [2021-11-12 22:55:58,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:58,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96087004] [2021-11-12 22:55:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:58,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:58,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:58,726 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:58,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ba1d5e-0b2a-41d7-a1c0-806430cd3969/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process