./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_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_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/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_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/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_d8e228a1-9b85-4424-b6de-613710ad3b6c/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:13,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:13,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:13,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:13,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:13,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:13,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:13,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:13,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:13,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:13,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:13,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:13,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:13,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:13,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:13,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:13,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:13,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:13,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:13,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:13,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:13,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:13,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:13,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:13,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:13,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:13,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:13,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:13,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:13,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:13,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:13,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:13,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:13,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:13,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:13,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:13,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:13,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:13,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:13,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:13,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:13,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:46:13,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:13,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:13,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:13,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:13,240 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:13,241 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:13,241 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:13,241 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:46:13,247 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:13,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:13,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:46:13,249 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:46:13,249 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:13,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:46:13,250 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:46:13,250 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:46:13,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:13,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:46:13,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:13,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:13,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:13,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:13,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:13,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:13,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:13,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:13,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:13,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:13,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:13,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:13,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:13,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:13,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:46:13,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:46:13,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:13,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:13,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:13,257 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-12 23:46:13,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:13,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:13,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:13,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:13,554 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:13,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-12 23:46:13,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/b61155977/71c63d2e17ce43719356cf11ff87e097/FLAGae4671136 [2021-11-12 23:46:14,437 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:14,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-12 23:46:14,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/b61155977/71c63d2e17ce43719356cf11ff87e097/FLAGae4671136 [2021-11-12 23:46:14,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/b61155977/71c63d2e17ce43719356cf11ff87e097 [2021-11-12 23:46:14,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:14,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:14,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:14,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:14,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:14,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:14" (1/1) ... [2021-11-12 23:46:14,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9135e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:14, skipping insertion in model container [2021-11-12 23:46:14,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:14" (1/1) ... [2021-11-12 23:46:14,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:15,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:15,411 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-12 23:46:15,418 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-12 23:46:15,444 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:15,450 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:16,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,436 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:16,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:16,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:16,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:16,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:16,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:16,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:16,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:16,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:16,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:16,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:17,024 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:17,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:17,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:17,298 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 23:46:17,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7aedf963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:17, skipping insertion in model container [2021-11-12 23:46:17,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:17,299 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:46:17,314 INFO L158 Benchmark]: Toolchain (without parser) took 2358.98ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.3MB in the beginning and 107.2MB in the end (delta: -37.0MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-11-12 23:46:17,316 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 89.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:46:17,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2355.62ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.1MB in the beginning and 107.2MB in the end (delta: -37.2MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-11-12 23:46:17,320 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 115.3MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 89.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2355.62ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 70.1MB in the beginning and 107.2MB in the end (delta: -37.2MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/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_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/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_d8e228a1-9b85-4424-b6de-613710ad3b6c/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:19,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:19,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:19,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:19,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:19,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:19,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:19,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:19,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:19,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:19,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:19,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:19,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:19,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:19,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:19,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:19,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:19,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:19,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:19,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:19,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:19,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:19,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:19,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:19,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:19,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:19,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:19,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:19,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:19,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:19,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:19,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:19,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:19,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:19,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:19,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:19,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:19,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:19,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:19,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:19,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:19,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:46:19,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:19,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:19,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:19,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:19,950 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:19,950 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:19,950 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:19,950 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:19,951 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:19,951 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:19,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:19,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:19,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:19,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:19,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:19,954 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:19,955 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:46:19,955 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:46:19,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:19,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:19,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:19,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:19,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:46:19,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:19,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:19,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:19,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:19,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:19,957 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:46:19,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:19,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:19,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:19,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:19,959 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-12 23:46:20,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:20,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:20,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:20,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:20,379 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:20,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-12 23:46:20,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/c2d33c8c3/07ce4c45835741cfa002ff554ed5c9c8/FLAG15bee1729 [2021-11-12 23:46:21,535 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:21,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-12 23:46:21,580 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/c2d33c8c3/07ce4c45835741cfa002ff554ed5c9c8/FLAG15bee1729 [2021-11-12 23:46:21,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/data/c2d33c8c3/07ce4c45835741cfa002ff554ed5c9c8 [2021-11-12 23:46:21,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:21,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:21,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:21,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:21,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:21,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:21" (1/1) ... [2021-11-12 23:46:21,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709e6f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:21, skipping insertion in model container [2021-11-12 23:46:21,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:21" (1/1) ... [2021-11-12 23:46:21,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:22,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:22,364 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-12 23:46:22,371 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-12 23:46:22,395 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:22,401 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:23,732 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:23,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,240 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:24,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:24,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:24,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:24,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:24,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:24,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:24,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:24,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:24,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:24,410 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:24,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:24,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:46:24,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:24,799 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-12 23:46:24,799 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-12 23:46:24,804 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:24,806 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:24,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:24,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:24,962 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:24,964 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:24,965 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:24,966 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:24,966 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:24,968 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:24,968 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:24,969 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:24,969 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:25,002 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:25,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:25,141 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:46:25,166 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-12 23:46:25,167 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_d8e228a1-9b85-4424-b6de-613710ad3b6c/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-12 23:46:25,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:25,172 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:25,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:25,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:25,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:25,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:25,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:25,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:25,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:25,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:25,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:25,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:25,296 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:25,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:25,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:25,778 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:46:25,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25 WrapperNode [2021-11-12 23:46:25,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:25,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:25,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:46:25,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:46:25,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:25,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:26,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:46:26,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:46:26,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:46:26,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:46:26,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:46:26,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:46:26,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:46:26,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (1/1) ... [2021-11-12 23:46:26,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:26,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:26,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:46:26,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:46:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2021-11-12 23:46:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2021-11-12 23:46:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-12 23:46:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-12 23:46:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-12 23:46:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-12 23:46:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:46:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-12 23:46:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-12 23:46:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-12 23:46:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-12 23:46:26,353 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:46:26,354 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:46:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:46:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:46:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:46:26,354 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-11-12 23:46:26,354 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-11-12 23:46:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 23:46:26,355 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 23:46:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:46:26,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:46:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:46:26,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:46:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:46:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:46:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-11-12 23:46:26,357 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-11-12 23:46:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-12 23:46:26,358 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-12 23:46:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:46:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:46:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:46:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:46:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:46:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:46:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 23:46:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 23:46:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-12 23:46:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-12 23:46:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-12 23:46:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-12 23:46:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-12 23:46:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-12 23:46:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:46:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:46:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-12 23:46:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-12 23:46:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:46:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-12 23:46:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-12 23:46:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:46:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:46:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 23:46:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 23:46:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:46:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:46:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-12 23:46:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-12 23:46:40,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:46:40,382 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 23:46:40,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:46:40 BoogieIcfgContainer [2021-11-12 23:46:40,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:46:40,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:46:40,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:46:40,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:46:40,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:46:21" (1/3) ... [2021-11-12 23:46:40,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f7f7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:46:40, skipping insertion in model container [2021-11-12 23:46:40,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:25" (2/3) ... [2021-11-12 23:46:40,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f7f7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:46:40, skipping insertion in model container [2021-11-12 23:46:40,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:46:40" (3/3) ... [2021-11-12 23:46:40,398 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2021-11-12 23:46:40,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:46:40,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:46:40,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:46:40,500 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 23:46:40,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:46:40,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 215 states have (on average 1.2697674418604652) internal successors, (273), 218 states have internal predecessors, (273), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2021-11-12 23:46:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-12 23:46:40,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:40,571 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:40,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:40,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:40,580 INFO L85 PathProgramCache]: Analyzing trace with hash 9305962, now seen corresponding path program 1 times [2021-11-12 23:46:40,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:40,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809890558] [2021-11-12 23:46:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:40,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:40,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:40,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:40,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:46:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:44,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:46:44,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-12 23:46:45,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-12 23:46:45,393 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:45,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809890558] [2021-11-12 23:46:45,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809890558] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:45,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:45,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:46:45,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098761955] [2021-11-12 23:46:45,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:45,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:46:45,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:45,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:46:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:46:45,438 INFO L87 Difference]: Start difference. First operand has 355 states, 215 states have (on average 1.2697674418604652) internal successors, (273), 218 states have internal predecessors, (273), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:46:45,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:45,547 INFO L93 Difference]: Finished difference Result 697 states and 1076 transitions. [2021-11-12 23:46:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:46:45,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2021-11-12 23:46:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:45,571 INFO L225 Difference]: With dead ends: 697 [2021-11-12 23:46:45,572 INFO L226 Difference]: Without dead ends: 348 [2021-11-12 23:46:45,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 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 23:46:45,591 INFO L933 BasicCegarLoop]: 488 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, 488 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:45,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.16ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:46:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-12 23:46:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2021-11-12 23:46:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 210 states have (on average 1.2333333333333334) internal successors, (259), 212 states have internal predecessors, (259), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2021-11-12 23:46:45,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 483 transitions. [2021-11-12 23:46:45,701 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 483 transitions. Word has length 103 [2021-11-12 23:46:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:45,702 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 483 transitions. [2021-11-12 23:46:45,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:46:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 483 transitions. [2021-11-12 23:46:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-12 23:46:45,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:45,710 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:45,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:45,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:45,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash 537699952, now seen corresponding path program 1 times [2021-11-12 23:46:45,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:45,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727094853] [2021-11-12 23:46:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:45,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:45,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:45,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:46:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:50,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:50,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:46:50,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-12 23:46:50,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:50,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727094853] [2021-11-12 23:46:50,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727094853] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:50,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:50,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-12 23:46:50,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245585862] [2021-11-12 23:46:50,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:50,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:46:50,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:46:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:50,922 INFO L87 Difference]: Start difference. First operand 348 states and 483 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 23:46:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:51,361 INFO L93 Difference]: Finished difference Result 662 states and 930 transitions. [2021-11-12 23:46:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:46:51,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2021-11-12 23:46:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:51,372 INFO L225 Difference]: With dead ends: 662 [2021-11-12 23:46:51,372 INFO L226 Difference]: Without dead ends: 350 [2021-11-12 23:46:51,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:46:51,376 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 45 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 295.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 349.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:51,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 1775 Invalid, 89 Unknown, 0 Unchecked, 14.05ms Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 349.39ms Time] [2021-11-12 23:46:51,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-12 23:46:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-11-12 23:46:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 211 states have (on average 1.2322274881516588) internal successors, (260), 214 states have internal predecessors, (260), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2021-11-12 23:46:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 492 transitions. [2021-11-12 23:46:51,439 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 492 transitions. Word has length 103 [2021-11-12 23:46:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:51,441 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 492 transitions. [2021-11-12 23:46:51,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-12 23:46:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 492 transitions. [2021-11-12 23:46:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-12 23:46:51,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:51,451 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:51,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:51,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:51,674 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:51,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1231895835, now seen corresponding path program 1 times [2021-11-12 23:46:51,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:51,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950816118] [2021-11-12 23:46:51,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:51,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:51,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:51,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:51,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:46:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:55,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:46:55,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:46:55,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-12 23:46:56,723 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:56,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950816118] [2021-11-12 23:46:56,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950816118] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:56,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:56,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2021-11-12 23:46:56,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144804794] [2021-11-12 23:46:56,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:56,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:46:56,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:56,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:46:56,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:46:56,725 INFO L87 Difference]: Start difference. First operand 350 states and 492 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-12 23:46:57,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:57,887 INFO L93 Difference]: Finished difference Result 685 states and 985 transitions. [2021-11-12 23:46:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:46:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2021-11-12 23:46:57,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:57,893 INFO L225 Difference]: With dead ends: 685 [2021-11-12 23:46:57,893 INFO L226 Difference]: Without dead ends: 371 [2021-11-12 23:46:57,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:46:57,897 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 80 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 912.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.91ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1039.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:57,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 2653 Invalid, 298 Unknown, 0 Unchecked, 13.91ms Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1039.25ms Time] [2021-11-12 23:46:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-12 23:46:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 369. [2021-11-12 23:46:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2422907488986785) internal successors, (282), 230 states have internal predecessors, (282), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2021-11-12 23:46:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 529 transitions. [2021-11-12 23:46:57,927 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 529 transitions. Word has length 111 [2021-11-12 23:46:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:57,928 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 529 transitions. [2021-11-12 23:46:57,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-12 23:46:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 529 transitions. [2021-11-12 23:46:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 23:46:57,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:57,930 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:57,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:58,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:58,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:58,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:58,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1532145368, now seen corresponding path program 1 times [2021-11-12 23:46:58,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:58,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004610836] [2021-11-12 23:46:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:58,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:58,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:58,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:58,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:47:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:02,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:47:02,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:47:02,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-12 23:47:03,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:03,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004610836] [2021-11-12 23:47:03,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004610836] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:03,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:03,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-12 23:47:03,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911306795] [2021-11-12 23:47:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:03,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:03,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:47:03,626 INFO L87 Difference]: Start difference. First operand 369 states and 529 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:47:04,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:04,469 INFO L93 Difference]: Finished difference Result 710 states and 1042 transitions. [2021-11-12 23:47:04,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:47:04,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2021-11-12 23:47:04,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:04,478 INFO L225 Difference]: With dead ends: 710 [2021-11-12 23:47:04,478 INFO L226 Difference]: Without dead ends: 377 [2021-11-12 23:47:04,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:47:04,483 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 68 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 634.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 704.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:04,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 2186 Invalid, 184 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 704.81ms Time] [2021-11-12 23:47:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-12 23:47:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 369. [2021-11-12 23:47:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2422907488986785) internal successors, (282), 230 states have internal predecessors, (282), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2021-11-12 23:47:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 529 transitions. [2021-11-12 23:47:04,518 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 529 transitions. Word has length 126 [2021-11-12 23:47:04,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:04,519 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 529 transitions. [2021-11-12 23:47:04,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 23:47:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 529 transitions. [2021-11-12 23:47:04,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-12 23:47:04,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:04,526 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:04,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:04,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:04,742 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1643344622, now seen corresponding path program 1 times [2021-11-12 23:47:04,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:04,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891755254] [2021-11-12 23:47:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:04,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:04,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:04,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:04,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:47:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:09,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:47:09,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-12 23:47:09,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-12 23:47:10,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:10,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891755254] [2021-11-12 23:47:10,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891755254] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:10,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:10,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2021-11-12 23:47:10,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677841048] [2021-11-12 23:47:10,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:10,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:47:10,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:10,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:47:10,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:47:10,711 INFO L87 Difference]: Start difference. First operand 369 states and 529 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:47:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:12,445 INFO L93 Difference]: Finished difference Result 736 states and 1080 transitions. [2021-11-12 23:47:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:47:12,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2021-11-12 23:47:12,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:12,451 INFO L225 Difference]: With dead ends: 736 [2021-11-12 23:47:12,451 INFO L226 Difference]: Without dead ends: 403 [2021-11-12 23:47:12,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:47:12,458 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 117 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1410.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.81ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1569.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:12,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 2972 Invalid, 441 Unknown, 0 Unchecked, 14.81ms Time], IncrementalHoareTripleChecker [10 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1569.12ms Time] [2021-11-12 23:47:12,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-12 23:47:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 369. [2021-11-12 23:47:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2422907488986785) internal successors, (282), 230 states have internal predecessors, (282), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2021-11-12 23:47:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 529 transitions. [2021-11-12 23:47:12,489 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 529 transitions. Word has length 142 [2021-11-12 23:47:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:12,491 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 529 transitions. [2021-11-12 23:47:12,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:47:12,491 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 529 transitions. [2021-11-12 23:47:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:47:12,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:12,495 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:47:12,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:12,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:12,726 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1991364579, now seen corresponding path program 1 times [2021-11-12 23:47:12,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:12,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49846741] [2021-11-12 23:47:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:12,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:12,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:12,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:12,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:47:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:17,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:47:17,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:47:18,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-12 23:47:18,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:18,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49846741] [2021-11-12 23:47:18,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49846741] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:18,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:18,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-12 23:47:18,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823940378] [2021-11-12 23:47:18,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:18,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:18,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:18,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:47:18,940 INFO L87 Difference]: Start difference. First operand 369 states and 529 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:47:21,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:23,203 WARN L515 Checker$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 23:47:25,220 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 23:47:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:28,934 INFO L93 Difference]: Finished difference Result 738 states and 1097 transitions. [2021-11-12 23:47:28,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:47:28,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-11-12 23:47:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:28,943 INFO L225 Difference]: With dead ends: 738 [2021-11-12 23:47:28,943 INFO L226 Difference]: Without dead ends: 405 [2021-11-12 23:47:28,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:47:28,948 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 21 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9056.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.88ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9498.75ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:28,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2270 Invalid, 209 Unknown, 0 Unchecked, 8.88ms Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 3 Unknown, 0 Unchecked, 9498.75ms Time] [2021-11-12 23:47:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-12 23:47:28,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 377. [2021-11-12 23:47:28,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 235 states have (on average 1.2425531914893617) internal successors, (292), 238 states have internal predecessors, (292), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2021-11-12 23:47:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 539 transitions. [2021-11-12 23:47:28,974 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 539 transitions. Word has length 157 [2021-11-12 23:47:28,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:28,975 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 539 transitions. [2021-11-12 23:47:28,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:47:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 539 transitions. [2021-11-12 23:47:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:47:28,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:28,979 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:47:29,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-12 23:47:29,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:29,194 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:29,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -453024549, now seen corresponding path program 1 times [2021-11-12 23:47:29,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:29,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505381982] [2021-11-12 23:47:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:29,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:29,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:29,198 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:47:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:33,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:47:33,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:47:34,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:35,222 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-12 23:47:35,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:35,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505381982] [2021-11-12 23:47:35,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505381982] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:35,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:35,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-12 23:47:35,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541145198] [2021-11-12 23:47:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:35,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:47:35,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:47:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:47:35,224 INFO L87 Difference]: Start difference. First operand 377 states and 539 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:47:37,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:39,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:47:41,435 WARN L515 Checker$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 23:47:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:45,129 INFO L93 Difference]: Finished difference Result 748 states and 1107 transitions. [2021-11-12 23:47:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:47:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-11-12 23:47:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:45,136 INFO L225 Difference]: With dead ends: 748 [2021-11-12 23:47:45,137 INFO L226 Difference]: Without dead ends: 407 [2021-11-12 23:47:45,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:47:45,141 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 17 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8839.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.71ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9265.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:45,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 2748 Invalid, 228 Unknown, 0 Unchecked, 7.71ms Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 3 Unknown, 0 Unchecked, 9265.02ms Time] [2021-11-12 23:47:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-11-12 23:47:45,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 381. [2021-11-12 23:47:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 239 states have (on average 1.2384937238493723) internal successors, (296), 242 states have internal predecessors, (296), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2021-11-12 23:47:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 543 transitions. [2021-11-12 23:47:45,164 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 543 transitions. Word has length 157 [2021-11-12 23:47:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:45,165 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 543 transitions. [2021-11-12 23:47:45,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:47:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 543 transitions. [2021-11-12 23:47:45,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:47:45,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:45,168 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:47:45,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:45,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:45,390 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -934104807, now seen corresponding path program 1 times [2021-11-12 23:47:45,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:45,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368911309] [2021-11-12 23:47:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:45,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:45,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:45,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:45,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:47:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:49,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:47:49,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:06,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-12 23:48:06,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-12 23:48:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-12 23:48:08,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:14,701 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:14,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-12 23:48:14,771 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-12 23:48:14,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-12 23:48:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-12 23:48:15,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:15,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368911309] [2021-11-12 23:48:15,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368911309] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:48:15,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:48:15,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 13 [2021-11-12 23:48:15,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527099584] [2021-11-12 23:48:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:15,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:48:15,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:48:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=122, Unknown=4, NotChecked=0, Total=156 [2021-11-12 23:48:15,094 INFO L87 Difference]: Start difference. First operand 381 states and 543 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:48:17,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:19,341 WARN L515 Checker$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 23:48:21,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:23,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:48:32,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:32,101 INFO L93 Difference]: Finished difference Result 747 states and 1103 transitions. [2021-11-12 23:48:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:48:32,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 157 [2021-11-12 23:48:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:32,109 INFO L225 Difference]: With dead ends: 747 [2021-11-12 23:48:32,109 INFO L226 Difference]: Without dead ends: 428 [2021-11-12 23:48:32,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 299 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=83, Invalid=291, Unknown=6, NotChecked=0, Total=380 [2021-11-12 23:48:32,113 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 79 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11328.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.94ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 11727.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:32,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 3902 Invalid, 625 Unknown, 0 Unchecked, 14.94ms Time], IncrementalHoareTripleChecker [11 Valid, 522 Invalid, 4 Unknown, 88 Unchecked, 11727.50ms Time] [2021-11-12 23:48:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-12 23:48:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 402. [2021-11-12 23:48:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 256 states have (on average 1.234375) internal successors, (316), 259 states have internal predecessors, (316), 117 states have call successors, (117), 25 states have call predecessors, (117), 27 states have return successors, (144), 117 states have call predecessors, (144), 115 states have call successors, (144) [2021-11-12 23:48:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 577 transitions. [2021-11-12 23:48:32,138 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 577 transitions. Word has length 157 [2021-11-12 23:48:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:32,139 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 577 transitions. [2021-11-12 23:48:32,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 5 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-12 23:48:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 577 transitions. [2021-11-12 23:48:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:48:32,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:32,142 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:48:32,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:32,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:32,358 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1115345573, now seen corresponding path program 1 times [2021-11-12 23:48:32,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:32,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048332576] [2021-11-12 23:48:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:32,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:32,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:32,362 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:32,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:48:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:36,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:36,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:48:37,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:37,483 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-12 23:48:37,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:37,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048332576] [2021-11-12 23:48:37,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048332576] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:48:37,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:48:37,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 23:48:37,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384458511] [2021-11-12 23:48:37,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:37,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:48:37,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:37,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:48:37,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:48:37,486 INFO L87 Difference]: Start difference. First operand 402 states and 577 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:48:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:37,695 INFO L93 Difference]: Finished difference Result 779 states and 1159 transitions. [2021-11-12 23:48:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:48:37,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-11-12 23:48:37,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:37,700 INFO L225 Difference]: With dead ends: 779 [2021-11-12 23:48:37,700 INFO L226 Difference]: Without dead ends: 422 [2021-11-12 23:48:37,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 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 23:48:37,704 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 8 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.58ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:37,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1982 Invalid, 24 Unknown, 0 Unchecked, 4.58ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 159.33ms Time] [2021-11-12 23:48:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-12 23:48:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 410. [2021-11-12 23:48:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 264 states have (on average 1.231060606060606) internal successors, (325), 267 states have internal predecessors, (325), 117 states have call successors, (117), 25 states have call predecessors, (117), 27 states have return successors, (144), 117 states have call predecessors, (144), 115 states have call successors, (144) [2021-11-12 23:48:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 586 transitions. [2021-11-12 23:48:37,728 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 586 transitions. Word has length 157 [2021-11-12 23:48:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:37,729 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 586 transitions. [2021-11-12 23:48:37,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:48:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 586 transitions. [2021-11-12 23:48:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-12 23:48:37,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:37,732 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:48:37,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:37,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:37,946 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:37,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1913527722, now seen corresponding path program 1 times [2021-11-12 23:48:37,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:37,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448090632] [2021-11-12 23:48:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:37,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:37,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:37,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:37,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:48:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:42,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:48:42,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-12 23:48:42,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-12 23:48:43,296 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:43,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448090632] [2021-11-12 23:48:43,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448090632] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:48:43,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:48:43,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-12 23:48:43,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512346145] [2021-11-12 23:48:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:43,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:48:43,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:48:43,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:48:43,298 INFO L87 Difference]: Start difference. First operand 410 states and 586 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:48:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:43,988 INFO L93 Difference]: Finished difference Result 748 states and 1085 transitions. [2021-11-12 23:48:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:48:43,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 159 [2021-11-12 23:48:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:43,994 INFO L225 Difference]: With dead ends: 748 [2021-11-12 23:48:43,994 INFO L226 Difference]: Without dead ends: 412 [2021-11-12 23:48:43,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:48:43,997 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 99 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 523.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.39ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 583.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:43,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 2597 Invalid, 176 Unknown, 0 Unchecked, 6.39ms Time], IncrementalHoareTripleChecker [41 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 583.55ms Time] [2021-11-12 23:48:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-12 23:48:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-12 23:48:44,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 265 states have (on average 1.230188679245283) internal successors, (326), 269 states have internal predecessors, (326), 117 states have call successors, (117), 25 states have call predecessors, (117), 28 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2021-11-12 23:48:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 593 transitions. [2021-11-12 23:48:44,022 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 593 transitions. Word has length 159 [2021-11-12 23:48:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:44,022 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 593 transitions. [2021-11-12 23:48:44,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:48:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 593 transitions. [2021-11-12 23:48:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-12 23:48:44,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:44,027 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:44,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:44,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:44,250 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -491327218, now seen corresponding path program 1 times [2021-11-12 23:48:44,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:44,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606648299] [2021-11-12 23:48:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:44,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:44,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:44,254 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:44,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:48:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:48,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:48:48,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 23:48:49,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-12 23:48:50,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:50,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606648299] [2021-11-12 23:48:50,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606648299] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:48:50,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:48:50,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 10 [2021-11-12 23:48:50,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859892223] [2021-11-12 23:48:50,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:50,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:48:50,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:48:50,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:48:50,474 INFO L87 Difference]: Start difference. First operand 412 states and 593 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 23:48:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:51,855 INFO L93 Difference]: Finished difference Result 753 states and 1100 transitions. [2021-11-12 23:48:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:48:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 205 [2021-11-12 23:48:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:51,862 INFO L225 Difference]: With dead ends: 753 [2021-11-12 23:48:51,862 INFO L226 Difference]: Without dead ends: 415 [2021-11-12 23:48:51,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:48:51,865 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 122 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1046.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.50ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1175.09ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:51,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2992 Invalid, 287 Unknown, 0 Unchecked, 10.50ms Time], IncrementalHoareTripleChecker [46 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1175.09ms Time] [2021-11-12 23:48:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-11-12 23:48:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2021-11-12 23:48:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 266 states have (on average 1.2293233082706767) internal successors, (327), 270 states have internal predecessors, (327), 117 states have call successors, (117), 25 states have call predecessors, (117), 28 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2021-11-12 23:48:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 594 transitions. [2021-11-12 23:48:51,889 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 594 transitions. Word has length 205 [2021-11-12 23:48:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:51,890 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 594 transitions. [2021-11-12 23:48:51,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 23:48:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 594 transitions. [2021-11-12 23:48:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-12 23:48:51,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:51,894 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:48:51,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:52,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:52,118 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash 468795530, now seen corresponding path program 1 times [2021-11-12 23:48:52,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:52,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625629876] [2021-11-12 23:48:52,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:52,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:52,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:52,124 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:52,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:48:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:56,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 2041 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:48:56,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-12 23:48:57,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-12 23:48:58,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:58,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625629876] [2021-11-12 23:48:58,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625629876] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:48:58,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1589047214] [2021-11-12 23:48:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:58,757 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:48:58,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:48:58,759 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:48:58,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-12 23:49:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:00,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2041 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:49:00,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-11-12 23:49:00,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:49:01,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1589047214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:01,067 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:49:01,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9, 9] total 15 [2021-11-12 23:49:01,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403873220] [2021-11-12 23:49:01,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:01,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:49:01,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:01,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:49:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:49:01,070 INFO L87 Difference]: Start difference. First operand 413 states and 594 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:49:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:01,112 INFO L93 Difference]: Finished difference Result 555 states and 776 transitions. [2021-11-12 23:49:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:49:01,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 207 [2021-11-12 23:49:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:01,117 INFO L225 Difference]: With dead ends: 555 [2021-11-12 23:49:01,118 INFO L226 Difference]: Without dead ends: 414 [2021-11-12 23:49:01,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:49:01,124 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:01,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 959 Invalid, 6 Unknown, 0 Unchecked, 1.60ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 19.91ms Time] [2021-11-12 23:49:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-12 23:49:01,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-11-12 23:49:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 267 states have (on average 1.2284644194756553) internal successors, (328), 271 states have internal predecessors, (328), 117 states have call successors, (117), 25 states have call predecessors, (117), 28 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2021-11-12 23:49:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 595 transitions. [2021-11-12 23:49:01,152 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 595 transitions. Word has length 207 [2021-11-12 23:49:01,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:01,152 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 595 transitions. [2021-11-12 23:49:01,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:49:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 595 transitions. [2021-11-12 23:49:01,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-12 23:49:01,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:01,157 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:01,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:01,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-12 23:49:01,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:49:01,579 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:01,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash 806137250, now seen corresponding path program 1 times [2021-11-12 23:49:01,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:01,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126500276] [2021-11-12 23:49:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:01,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:01,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:01,583 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:01,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:49:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:06,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:49:06,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-12 23:49:06,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:49:07,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:07,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126500276] [2021-11-12 23:49:07,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126500276] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:49:07,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [679754792] [2021-11-12 23:49:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:07,862 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:49:07,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:49:07,868 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:49:07,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-12 23:49:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:09,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:49:09,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-12 23:49:10,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:49:11,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [679754792] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:49:11,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205093426] [2021-11-12 23:49:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:11,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:49:11,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:49:11,397 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:49:11,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-12 23:49:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:12,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:49:12,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-12 23:49:13,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:49:14,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205093426] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:49:14,202 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:49:14,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 23 [2021-11-12 23:49:14,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119256725] [2021-11-12 23:49:14,203 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:49:14,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 23:49:14,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 23:49:14,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:49:14,205 INFO L87 Difference]: Start difference. First operand 414 states and 595 transitions. Second operand has 23 states, 20 states have (on average 7.6) internal successors, (152), 20 states have internal predecessors, (152), 14 states have call successors, (56), 5 states have call predecessors, (56), 6 states have return successors, (51), 7 states have call predecessors, (51), 14 states have call successors, (51) [2021-11-12 23:49:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:17,615 INFO L93 Difference]: Finished difference Result 789 states and 1155 transitions. [2021-11-12 23:49:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:49:17,616 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 20 states have internal predecessors, (152), 14 states have call successors, (56), 5 states have call predecessors, (56), 6 states have return successors, (51), 7 states have call predecessors, (51), 14 states have call successors, (51) Word has length 204 [2021-11-12 23:49:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:17,620 INFO L225 Difference]: With dead ends: 789 [2021-11-12 23:49:17,621 INFO L226 Difference]: Without dead ends: 449 [2021-11-12 23:49:17,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 1200 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:49:17,624 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 369 mSDsluCounter, 6235 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2402.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.57ms SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2603.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:17,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 6680 Invalid, 875 Unknown, 0 Unchecked, 20.57ms Time], IncrementalHoareTripleChecker [141 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 2603.24ms Time] [2021-11-12 23:49:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-12 23:49:17,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 441. [2021-11-12 23:49:17,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 293 states have (on average 1.235494880546075) internal successors, (362), 296 states have internal predecessors, (362), 118 states have call successors, (118), 25 states have call predecessors, (118), 28 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2021-11-12 23:49:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 631 transitions. [2021-11-12 23:49:17,650 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 631 transitions. Word has length 204 [2021-11-12 23:49:17,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:17,650 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 631 transitions. [2021-11-12 23:49:17,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 20 states have internal predecessors, (152), 14 states have call successors, (56), 5 states have call predecessors, (56), 6 states have return successors, (51), 7 states have call predecessors, (51), 14 states have call successors, (51) [2021-11-12 23:49:17,651 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 631 transitions. [2021-11-12 23:49:17,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-12 23:49:17,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:17,656 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:17,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:17,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:18,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-12 23:49:18,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:18,271 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:18,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1869141837, now seen corresponding path program 2 times [2021-11-12 23:49:18,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:18,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562992418] [2021-11-12 23:49:18,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:49:18,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:18,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:18,276 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:18,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 23:49:21,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 23:49:21,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:49:21,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:49:21,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-12 23:49:22,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-11-12 23:49:22,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:22,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562992418] [2021-11-12 23:49:22,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562992418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:49:22,411 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:49:22,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:49:22,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16060391] [2021-11-12 23:49:22,412 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:22,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:49:22,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:49:22,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:49:22,414 INFO L87 Difference]: Start difference. First operand 441 states and 631 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:49:22,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:22,507 INFO L93 Difference]: Finished difference Result 802 states and 1159 transitions. [2021-11-12 23:49:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:49:22,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2021-11-12 23:49:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:22,511 INFO L225 Difference]: With dead ends: 802 [2021-11-12 23:49:22,512 INFO L226 Difference]: Without dead ends: 471 [2021-11-12 23:49:22,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:49:22,515 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 41 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:22,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 973 Invalid, 28 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [11 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 76.11ms Time] [2021-11-12 23:49:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-11-12 23:49:22,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 446. [2021-11-12 23:49:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 298 states have (on average 1.2315436241610738) internal successors, (367), 301 states have internal predecessors, (367), 118 states have call successors, (118), 25 states have call predecessors, (118), 28 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2021-11-12 23:49:22,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 636 transitions. [2021-11-12 23:49:22,541 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 636 transitions. Word has length 219 [2021-11-12 23:49:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:22,542 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 636 transitions. [2021-11-12 23:49:22,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:49:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 636 transitions. [2021-11-12 23:49:22,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-12 23:49:22,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:22,547 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:22,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:22,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:22,762 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1255640689, now seen corresponding path program 1 times [2021-11-12 23:49:22,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:22,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464923301] [2021-11-12 23:49:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:22,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:22,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:22,767 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:22,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 23:49:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:27,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 2118 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:49:27,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-12 23:49:28,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:49:29,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:29,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464923301] [2021-11-12 23:49:29,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464923301] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:29,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:49:29,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 16 [2021-11-12 23:49:29,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502456915] [2021-11-12 23:49:29,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:29,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:49:29,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:29,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:49:29,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:49:29,547 INFO L87 Difference]: Start difference. First operand 446 states and 636 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-12 23:49:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:31,692 INFO L93 Difference]: Finished difference Result 850 states and 1227 transitions. [2021-11-12 23:49:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:49:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 221 [2021-11-12 23:49:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:31,697 INFO L225 Difference]: With dead ends: 850 [2021-11-12 23:49:31,697 INFO L226 Difference]: Without dead ends: 478 [2021-11-12 23:49:31,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:49:31,701 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 171 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1727.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.17ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1904.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:31,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 3742 Invalid, 572 Unknown, 0 Unchecked, 9.17ms Time], IncrementalHoareTripleChecker [46 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1904.15ms Time] [2021-11-12 23:49:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-12 23:49:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 416. [2021-11-12 23:49:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 270 states have (on average 1.2259259259259259) internal successors, (331), 273 states have internal predecessors, (331), 117 states have call successors, (117), 25 states have call predecessors, (117), 27 states have return successors, (142), 117 states have call predecessors, (142), 115 states have call successors, (142) [2021-11-12 23:49:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 590 transitions. [2021-11-12 23:49:31,726 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 590 transitions. Word has length 221 [2021-11-12 23:49:31,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:31,727 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 590 transitions. [2021-11-12 23:49:31,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-12 23:49:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 590 transitions. [2021-11-12 23:49:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-12 23:49:31,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:31,730 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:31,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:31,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:31,953 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:31,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:31,953 INFO L85 PathProgramCache]: Analyzing trace with hash 497854592, now seen corresponding path program 1 times [2021-11-12 23:49:31,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:31,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206140890] [2021-11-12 23:49:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:31,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:31,957 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:31,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 23:49:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:37,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:49:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-11-12 23:49:37,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2021-11-12 23:49:38,487 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:38,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206140890] [2021-11-12 23:49:38,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206140890] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:38,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:49:38,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2021-11-12 23:49:38,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462147655] [2021-11-12 23:49:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:38,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:49:38,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:38,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:49:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:49:38,490 INFO L87 Difference]: Start difference. First operand 416 states and 590 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-12 23:49:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:39,447 INFO L93 Difference]: Finished difference Result 751 states and 1077 transitions. [2021-11-12 23:49:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:49:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 236 [2021-11-12 23:49:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:39,453 INFO L225 Difference]: With dead ends: 751 [2021-11-12 23:49:39,453 INFO L226 Difference]: Without dead ends: 418 [2021-11-12 23:49:39,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:49:39,455 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 153 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 732.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.48ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 809.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:39,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 3420 Invalid, 257 Unknown, 0 Unchecked, 6.48ms Time], IncrementalHoareTripleChecker [56 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 809.46ms Time] [2021-11-12 23:49:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-12 23:49:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-11-12 23:49:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 271 states have (on average 1.2250922509225093) internal successors, (332), 275 states have internal predecessors, (332), 117 states have call successors, (117), 25 states have call predecessors, (117), 28 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2021-11-12 23:49:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 595 transitions. [2021-11-12 23:49:39,481 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 595 transitions. Word has length 236 [2021-11-12 23:49:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:39,481 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 595 transitions. [2021-11-12 23:49:39,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-12 23:49:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 595 transitions. [2021-11-12 23:49:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-12 23:49:39,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:39,485 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:39,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-12 23:49:39,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:39,698 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:39,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1731976598, now seen corresponding path program 1 times [2021-11-12 23:49:39,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:39,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155332821] [2021-11-12 23:49:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:39,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:39,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:39,703 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:39,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 23:49:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:44,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:49:44,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-12 23:49:45,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-11-12 23:49:47,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:47,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155332821] [2021-11-12 23:49:47,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155332821] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:47,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:49:47,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 18 [2021-11-12 23:49:47,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317013762] [2021-11-12 23:49:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:47,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:49:47,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:47,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:49:47,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:49:47,016 INFO L87 Difference]: Start difference. First operand 418 states and 595 transitions. Second operand has 11 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-12 23:49:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:48,964 INFO L93 Difference]: Finished difference Result 783 states and 1124 transitions. [2021-11-12 23:49:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:49:48,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 252 [2021-11-12 23:49:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:48,968 INFO L225 Difference]: With dead ends: 783 [2021-11-12 23:49:48,968 INFO L226 Difference]: Without dead ends: 448 [2021-11-12 23:49:48,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:49:48,971 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 188 mSDsluCounter, 3832 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1562.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 4290 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.61ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1703.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:48,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 4290 Invalid, 538 Unknown, 0 Unchecked, 9.61ms Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 1703.73ms Time] [2021-11-12 23:49:48,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-12 23:49:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2021-11-12 23:49:48,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 298 states have (on average 1.2315436241610738) internal successors, (367), 301 states have internal predecessors, (367), 118 states have call successors, (118), 25 states have call predecessors, (118), 28 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2021-11-12 23:49:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 632 transitions. [2021-11-12 23:49:48,996 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 632 transitions. Word has length 252 [2021-11-12 23:49:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:48,997 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 632 transitions. [2021-11-12 23:49:48,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-12 23:49:48,998 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 632 transitions. [2021-11-12 23:49:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-12 23:49:49,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:49,001 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:49,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:49,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:49,222 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash 120871304, now seen corresponding path program 1 times [2021-11-12 23:49:49,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:49,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409858747] [2021-11-12 23:49:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:49,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:49,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:49,227 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:49,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 23:49:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:55,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:49:55,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:55,847 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-12 23:49:55,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-12 23:49:56,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:49:56,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409858747] [2021-11-12 23:49:56,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409858747] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:56,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:49:56,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 12 [2021-11-12 23:49:56,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970051598] [2021-11-12 23:49:56,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:49:56,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:49:56,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:49:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:49:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:49:56,861 INFO L87 Difference]: Start difference. First operand 446 states and 632 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-12 23:49:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:58,342 INFO L93 Difference]: Finished difference Result 817 states and 1173 transitions. [2021-11-12 23:49:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:49:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 282 [2021-11-12 23:49:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:58,346 INFO L225 Difference]: With dead ends: 817 [2021-11-12 23:49:58,346 INFO L226 Difference]: Without dead ends: 454 [2021-11-12 23:49:58,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:49:58,349 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 176 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1141.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3799 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.37ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1251.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:58,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 3799 Invalid, 380 Unknown, 0 Unchecked, 7.37ms Time], IncrementalHoareTripleChecker [61 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1251.73ms Time] [2021-11-12 23:49:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-12 23:49:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2021-11-12 23:49:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 298 states have (on average 1.2315436241610738) internal successors, (367), 301 states have internal predecessors, (367), 118 states have call successors, (118), 25 states have call predecessors, (118), 28 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2021-11-12 23:49:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 632 transitions. [2021-11-12 23:49:58,375 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 632 transitions. Word has length 282 [2021-11-12 23:49:58,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:58,376 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 632 transitions. [2021-11-12 23:49:58,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-12 23:49:58,376 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 632 transitions. [2021-11-12 23:49:58,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-12 23:49:58,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:58,380 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:58,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-12 23:49:58,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:49:58,606 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:58,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:58,607 INFO L85 PathProgramCache]: Analyzing trace with hash -731298320, now seen corresponding path program 1 times [2021-11-12 23:49:58,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:49:58,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456293390] [2021-11-12 23:49:58,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:58,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:49:58,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:49:58,611 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:49:58,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 23:50:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:03,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:50:03,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-12 23:50:04,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-12 23:50:05,140 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:05,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456293390] [2021-11-12 23:50:05,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456293390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:50:05,140 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:50:05,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2021-11-12 23:50:05,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087340896] [2021-11-12 23:50:05,141 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:05,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:50:05,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:05,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:50:05,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:50:05,142 INFO L87 Difference]: Start difference. First operand 446 states and 632 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-12 23:50:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:05,780 INFO L93 Difference]: Finished difference Result 776 states and 1105 transitions. [2021-11-12 23:50:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:50:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 250 [2021-11-12 23:50:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:05,785 INFO L225 Difference]: With dead ends: 776 [2021-11-12 23:50:05,785 INFO L226 Difference]: Without dead ends: 453 [2021-11-12 23:50:05,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:50:05,788 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 147 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 455.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.14ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 512.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:05,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 2596 Invalid, 192 Unknown, 0 Unchecked, 4.14ms Time], IncrementalHoareTripleChecker [55 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 512.61ms Time] [2021-11-12 23:50:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-12 23:50:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 448. [2021-11-12 23:50:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 299 states have (on average 1.2307692307692308) internal successors, (368), 303 states have internal predecessors, (368), 118 states have call successors, (118), 25 states have call predecessors, (118), 29 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2021-11-12 23:50:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 635 transitions. [2021-11-12 23:50:05,813 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 635 transitions. Word has length 250 [2021-11-12 23:50:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:05,814 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 635 transitions. [2021-11-12 23:50:05,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-12 23:50:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 635 transitions. [2021-11-12 23:50:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-12 23:50:05,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:05,817 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:05,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:06,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:06,038 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:50:06,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:06,039 INFO L85 PathProgramCache]: Analyzing trace with hash 514261413, now seen corresponding path program 1 times [2021-11-12 23:50:06,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:06,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913298947] [2021-11-12 23:50:06,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:06,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:06,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:06,043 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:06,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 23:50:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:11,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:50:11,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-12 23:50:12,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-11-12 23:50:13,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:50:13,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913298947] [2021-11-12 23:50:13,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913298947] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:50:13,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:50:13,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 16 [2021-11-12 23:50:13,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301121554] [2021-11-12 23:50:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:50:13,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:50:13,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:50:13,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:50:13,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:50:13,835 INFO L87 Difference]: Start difference. First operand 448 states and 635 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-12 23:50:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:15,470 INFO L93 Difference]: Finished difference Result 781 states and 1112 transitions. [2021-11-12 23:50:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:50:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 258 [2021-11-12 23:50:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:15,475 INFO L225 Difference]: With dead ends: 781 [2021-11-12 23:50:15,475 INFO L226 Difference]: Without dead ends: 456 [2021-11-12 23:50:15,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:50:15,478 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 156 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1265.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.12ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1417.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:15,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 3898 Invalid, 472 Unknown, 0 Unchecked, 12.12ms Time], IncrementalHoareTripleChecker [58 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1417.14ms Time] [2021-11-12 23:50:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-12 23:50:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 449. [2021-11-12 23:50:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 300 states have (on average 1.23) internal successors, (369), 304 states have internal predecessors, (369), 118 states have call successors, (118), 25 states have call predecessors, (118), 29 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2021-11-12 23:50:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 636 transitions. [2021-11-12 23:50:15,509 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 636 transitions. Word has length 258 [2021-11-12 23:50:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:15,510 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 636 transitions. [2021-11-12 23:50:15,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-12 23:50:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 636 transitions. [2021-11-12 23:50:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-12 23:50:15,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:15,514 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:15,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:15,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:50:15,735 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:50:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:15,735 INFO L85 PathProgramCache]: Analyzing trace with hash 48572004, now seen corresponding path program 2 times [2021-11-12 23:50:15,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:50:15,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670955374] [2021-11-12 23:50:15,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:50:15,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:50:15,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:50:15,739 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:50:15,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e228a1-9b85-4424-b6de-613710ad3b6c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process