./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:04:29,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:04:29,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:04:29,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:04:29,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:04:29,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:04:29,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:04:29,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:04:29,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:04:29,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:04:29,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:04:29,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:04:29,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:04:29,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:04:29,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:04:29,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:04:29,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:04:29,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:04:29,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:04:29,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:04:29,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:04:29,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:04:29,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:04:29,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:04:29,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:04:29,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:04:29,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:04:29,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:04:29,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:04:29,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:04:29,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:04:29,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:04:29,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:04:29,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:04:29,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:04:29,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:04:29,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:04:29,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:04:29,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:04:29,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:04:29,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:04:29,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:04:29,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:04:29,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:04:29,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:04:29,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:04:29,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:04:29,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:04:29,308 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:04:29,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:04:29,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:04:29,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:04:29,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:04:29,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:04:29,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:04:29,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:04:29,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:04:29,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:04:29,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:04:29,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:04:29,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:04:29,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:04:29,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:04:29,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:04:29,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:04:29,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:04:29,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:04:29,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:04:29,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:04:29,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:04:29,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:04:29,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 [2021-11-23 14:04:29,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:04:29,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:04:29,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:04:29,676 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:04:29,677 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:04:29,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-23 14:04:29,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/data/e8354736a/387e7ff07913436a92a32cc33a37943f/FLAG9db31c558 [2021-11-23 14:04:30,543 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:04:30,544 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2021-11-23 14:04:30,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/data/e8354736a/387e7ff07913436a92a32cc33a37943f/FLAG9db31c558 [2021-11-23 14:04:31,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/data/e8354736a/387e7ff07913436a92a32cc33a37943f [2021-11-23 14:04:31,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:04:31,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:04:31,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:31,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:04:31,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:04:31,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:31" (1/1) ... [2021-11-23 14:04:31,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e229c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:31, skipping insertion in model container [2021-11-23 14:04:31,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:31" (1/1) ... [2021-11-23 14:04:31,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:04:31,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:04:31,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-23 14:04:31,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-23 14:04:32,929 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,929 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,930 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,932 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,948 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,949 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,951 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,952 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,955 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,956 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:32,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:33,449 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 14:04:33,451 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 14:04:33,452 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 14:04:33,453 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 14:04:33,455 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 14:04:33,456 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 14:04:33,457 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 14:04:33,458 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 14:04:33,458 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 14:04:33,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 14:04:33,754 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 14:04:34,157 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,157 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,218 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,220 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,224 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,224 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,225 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:34,333 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:04:34,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2021-11-23 14:04:34,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2021-11-23 14:04:34,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,436 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,436 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,436 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,442 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,442 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,443 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,444 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,445 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,476 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 14:04:34,477 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 14:04:34,478 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 14:04:34,479 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 14:04:34,480 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 14:04:34,480 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 14:04:34,481 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 14:04:34,481 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 14:04:34,481 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 14:04:34,482 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 14:04:34,517 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 14:04:34,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,630 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,631 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,649 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,649 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,650 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,650 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,651 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,651 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:04:34,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:35,072 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:04:35,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35 WrapperNode [2021-11-23 14:04:35,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:35,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:35,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:04:35,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:04:35,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,376 INFO L137 Inliner]: procedures = 775, calls = 2435, calls flagged for inlining = 750, calls inlined = 144, statements flattened = 3217 [2021-11-23 14:04:35,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:35,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:04:35,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:04:35,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:04:35,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:04:35,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:04:35,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:04:35,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:04:35,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:35,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:04:35,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:35,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:35,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:04:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 14:04:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:04:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:04:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:04:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:04:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:04:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:04:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:04:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:04:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:04:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:04:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:04:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:04:36,127 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:04:36,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:04:38,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume !true; [2021-11-23 14:04:38,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##136: assume !true; [2021-11-23 14:04:38,390 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##343: assume !true; [2021-11-23 14:04:38,390 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:04:38,401 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:04:38,401 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 14:04:38,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:38 BoogieIcfgContainer [2021-11-23 14:04:38,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:04:38,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:04:38,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:04:38,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:04:38,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:31" (1/3) ... [2021-11-23 14:04:38,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ed0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:38, skipping insertion in model container [2021-11-23 14:04:38,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (2/3) ... [2021-11-23 14:04:38,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ed0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:38, skipping insertion in model container [2021-11-23 14:04:38,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:38" (3/3) ... [2021-11-23 14:04:38,412 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_foreach_harness.i [2021-11-23 14:04:38,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:04:38,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-23 14:04:38,468 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:04:38,475 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=PETRI_NET, 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 [2021-11-23 14:04:38,475 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-23 14:04:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 465 states, 447 states have (on average 1.5100671140939597) internal successors, (675), 464 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:38,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 14:04:38,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:38,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:38,509 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash -732608065, now seen corresponding path program 1 times [2021-11-23 14:04:38,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:38,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113678904] [2021-11-23 14:04:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:38,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:39,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:39,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:39,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113678904] [2021-11-23 14:04:39,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113678904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:39,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:39,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:04:39,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917939183] [2021-11-23 14:04:39,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:39,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:04:39,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:39,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:04:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:04:39,182 INFO L87 Difference]: Start difference. First operand has 465 states, 447 states have (on average 1.5100671140939597) internal successors, (675), 464 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:39,257 INFO L93 Difference]: Finished difference Result 925 states and 1344 transitions. [2021-11-23 14:04:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:04:39,259 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 14:04:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:39,287 INFO L225 Difference]: With dead ends: 925 [2021-11-23 14:04:39,287 INFO L226 Difference]: Without dead ends: 459 [2021-11-23 14:04:39,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:04:39,295 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:39,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:04:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-23 14:04:39,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2021-11-23 14:04:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 442 states have (on average 1.3936651583710407) internal successors, (616), 458 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 616 transitions. [2021-11-23 14:04:39,405 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 616 transitions. Word has length 51 [2021-11-23 14:04:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:39,405 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 616 transitions. [2021-11-23 14:04:39,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:39,406 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 616 transitions. [2021-11-23 14:04:39,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 14:04:39,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:39,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:39,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:04:39,409 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1623993204, now seen corresponding path program 1 times [2021-11-23 14:04:39,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:39,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954494038] [2021-11-23 14:04:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:39,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:39,544 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:04:39,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042861142] [2021-11-23 14:04:39,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:39,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:04:39,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:39,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:04:39,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 14:04:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:40,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 2092 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:04:40,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:40,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:40,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:04:40,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:40,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954494038] [2021-11-23 14:04:40,346 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:04:40,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042861142] [2021-11-23 14:04:40,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042861142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:40,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:40,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:04:40,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948926498] [2021-11-23 14:04:40,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:40,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:04:40,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:40,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:04:40,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:04:40,351 INFO L87 Difference]: Start difference. First operand 459 states and 616 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:40,784 INFO L93 Difference]: Finished difference Result 1088 states and 1459 transitions. [2021-11-23 14:04:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:04:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-23 14:04:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:40,793 INFO L225 Difference]: With dead ends: 1088 [2021-11-23 14:04:40,794 INFO L226 Difference]: Without dead ends: 719 [2021-11-23 14:04:40,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:04:40,802 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1537 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:40,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1537 Valid, 2026 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:04:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-11-23 14:04:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 459. [2021-11-23 14:04:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 442 states have (on average 1.3891402714932126) internal successors, (614), 458 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:40,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 614 transitions. [2021-11-23 14:04:40,832 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 614 transitions. Word has length 54 [2021-11-23 14:04:40,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:40,832 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 614 transitions. [2021-11-23 14:04:40,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:40,833 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 614 transitions. [2021-11-23 14:04:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 14:04:40,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:40,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:40,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:41,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-23 14:04:41,054 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:41,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1196059165, now seen corresponding path program 1 times [2021-11-23 14:04:41,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:41,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282301511] [2021-11-23 14:04:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:41,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:41,121 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:04:41,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433481739] [2021-11-23 14:04:41,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:41,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:04:41,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:41,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:04:41,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:04:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:41,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:04:41,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:41,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:04:41,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:41,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282301511] [2021-11-23 14:04:41,725 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:04:41,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433481739] [2021-11-23 14:04:41,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433481739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:41,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:41,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:04:41,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660483704] [2021-11-23 14:04:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:41,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:04:41,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:41,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:04:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:04:41,728 INFO L87 Difference]: Start difference. First operand 459 states and 614 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:41,808 INFO L93 Difference]: Finished difference Result 1343 states and 1803 transitions. [2021-11-23 14:04:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:04:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-23 14:04:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:41,815 INFO L225 Difference]: With dead ends: 1343 [2021-11-23 14:04:41,816 INFO L226 Difference]: Without dead ends: 906 [2021-11-23 14:04:41,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:04:41,818 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 1197 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 3617 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:41,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 3617 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:04:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2021-11-23 14:04:41,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 462. [2021-11-23 14:04:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3865168539325843) internal successors, (617), 461 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 617 transitions. [2021-11-23 14:04:41,844 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 617 transitions. Word has length 55 [2021-11-23 14:04:41,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:41,845 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 617 transitions. [2021-11-23 14:04:41,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 617 transitions. [2021-11-23 14:04:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 14:04:41,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:41,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:41,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:42,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:04:42,074 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1561813049, now seen corresponding path program 1 times [2021-11-23 14:04:42,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:42,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051695041] [2021-11-23 14:04:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:42,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:42,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:42,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051695041] [2021-11-23 14:04:42,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051695041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:42,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:42,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:04:42,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793215471] [2021-11-23 14:04:42,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:42,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:04:42,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:04:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:04:42,421 INFO L87 Difference]: Start difference. First operand 462 states and 617 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:43,324 INFO L93 Difference]: Finished difference Result 902 states and 1210 transitions. [2021-11-23 14:04:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:04:43,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-23 14:04:43,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:43,328 INFO L225 Difference]: With dead ends: 902 [2021-11-23 14:04:43,328 INFO L226 Difference]: Without dead ends: 478 [2021-11-23 14:04:43,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:04:43,330 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1351 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:43,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2610 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 14:04:43,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-23 14:04:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 466. [2021-11-23 14:04:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 449 states have (on average 1.3830734966592428) internal successors, (621), 465 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 621 transitions. [2021-11-23 14:04:43,381 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 621 transitions. Word has length 57 [2021-11-23 14:04:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:43,381 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 621 transitions. [2021-11-23 14:04:43,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 621 transitions. [2021-11-23 14:04:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 14:04:43,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:43,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:43,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:04:43,384 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:43,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1379675655, now seen corresponding path program 1 times [2021-11-23 14:04:43,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:43,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805211306] [2021-11-23 14:04:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:43,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:43,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:43,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805211306] [2021-11-23 14:04:43,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805211306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:43,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:43,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:04:43,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347845890] [2021-11-23 14:04:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:43,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:04:43,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:43,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:04:43,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:04:43,731 INFO L87 Difference]: Start difference. First operand 466 states and 621 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:43,862 INFO L93 Difference]: Finished difference Result 893 states and 1196 transitions. [2021-11-23 14:04:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:04:43,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-23 14:04:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:43,866 INFO L225 Difference]: With dead ends: 893 [2021-11-23 14:04:43,866 INFO L226 Difference]: Without dead ends: 462 [2021-11-23 14:04:43,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:04:43,871 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 585 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:43,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1146 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-23 14:04:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2021-11-23 14:04:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3752808988764045) internal successors, (612), 461 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 612 transitions. [2021-11-23 14:04:43,903 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 612 transitions. Word has length 57 [2021-11-23 14:04:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:43,905 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 612 transitions. [2021-11-23 14:04:43,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 612 transitions. [2021-11-23 14:04:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 14:04:43,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:43,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:43,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:04:43,910 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:43,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:43,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1068442457, now seen corresponding path program 1 times [2021-11-23 14:04:43,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:43,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666716370] [2021-11-23 14:04:43,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:43,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:44,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:44,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666716370] [2021-11-23 14:04:44,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666716370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:44,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:44,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:04:44,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635802025] [2021-11-23 14:04:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:44,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:04:44,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:44,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:04:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:04:44,156 INFO L87 Difference]: Start difference. First operand 462 states and 612 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:45,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:45,167 INFO L93 Difference]: Finished difference Result 1196 states and 1592 transitions. [2021-11-23 14:04:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:04:45,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-23 14:04:45,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:45,172 INFO L225 Difference]: With dead ends: 1196 [2021-11-23 14:04:45,172 INFO L226 Difference]: Without dead ends: 771 [2021-11-23 14:04:45,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:04:45,174 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 686 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:45,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 1937 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 14:04:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-11-23 14:04:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 462. [2021-11-23 14:04:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3438202247191011) internal successors, (598), 461 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 598 transitions. [2021-11-23 14:04:45,205 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 598 transitions. Word has length 61 [2021-11-23 14:04:45,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:45,206 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 598 transitions. [2021-11-23 14:04:45,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 598 transitions. [2021-11-23 14:04:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 14:04:45,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:45,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:45,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:04:45,208 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 401026089, now seen corresponding path program 1 times [2021-11-23 14:04:45,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:45,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757201800] [2021-11-23 14:04:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:45,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:45,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:45,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:45,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757201800] [2021-11-23 14:04:45,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757201800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:45,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:45,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 14:04:45,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841004797] [2021-11-23 14:04:45,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:45,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:04:45,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:04:45,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:04:45,546 INFO L87 Difference]: Start difference. First operand 462 states and 598 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:46,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:46,121 INFO L93 Difference]: Finished difference Result 1055 states and 1378 transitions. [2021-11-23 14:04:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:04:46,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-23 14:04:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:46,125 INFO L225 Difference]: With dead ends: 1055 [2021-11-23 14:04:46,126 INFO L226 Difference]: Without dead ends: 653 [2021-11-23 14:04:46,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:04:46,127 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 1922 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:46,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1922 Valid, 1450 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 14:04:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2021-11-23 14:04:46,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 462. [2021-11-23 14:04:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.341573033707865) internal successors, (597), 461 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 597 transitions. [2021-11-23 14:04:46,160 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 597 transitions. Word has length 63 [2021-11-23 14:04:46,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:46,162 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 597 transitions. [2021-11-23 14:04:46,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 597 transitions. [2021-11-23 14:04:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 14:04:46,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:46,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:46,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 14:04:46,164 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1412143339, now seen corresponding path program 1 times [2021-11-23 14:04:46,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:46,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339962924] [2021-11-23 14:04:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:46,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:46,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:46,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339962924] [2021-11-23 14:04:46,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339962924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:46,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:46,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:04:46,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448742344] [2021-11-23 14:04:46,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:46,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:04:46,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:04:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:04:46,429 INFO L87 Difference]: Start difference. First operand 462 states and 597 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:47,236 INFO L93 Difference]: Finished difference Result 1024 states and 1333 transitions. [2021-11-23 14:04:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:04:47,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-23 14:04:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:47,241 INFO L225 Difference]: With dead ends: 1024 [2021-11-23 14:04:47,241 INFO L226 Difference]: Without dead ends: 655 [2021-11-23 14:04:47,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:04:47,242 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1950 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:47,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1950 Valid, 1869 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 14:04:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-11-23 14:04:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 462. [2021-11-23 14:04:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3393258426966292) internal successors, (596), 461 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 596 transitions. [2021-11-23 14:04:47,287 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 596 transitions. Word has length 63 [2021-11-23 14:04:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:47,288 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 596 transitions. [2021-11-23 14:04:47,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 596 transitions. [2021-11-23 14:04:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 14:04:47,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:47,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:47,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 14:04:47,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1492659888, now seen corresponding path program 1 times [2021-11-23 14:04:47,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:47,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231048037] [2021-11-23 14:04:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:47,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:47,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:47,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231048037] [2021-11-23 14:04:47,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231048037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:47,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:47,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:04:47,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292904280] [2021-11-23 14:04:47,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:47,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:04:47,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:47,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:04:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:04:47,632 INFO L87 Difference]: Start difference. First operand 462 states and 596 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:48,377 INFO L93 Difference]: Finished difference Result 807 states and 1048 transitions. [2021-11-23 14:04:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:04:48,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-23 14:04:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:48,381 INFO L225 Difference]: With dead ends: 807 [2021-11-23 14:04:48,381 INFO L226 Difference]: Without dead ends: 465 [2021-11-23 14:04:48,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-23 14:04:48,383 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1330 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:48,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 1894 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 14:04:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-11-23 14:04:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 462. [2021-11-23 14:04:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3370786516853932) internal successors, (595), 461 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 595 transitions. [2021-11-23 14:04:48,415 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 595 transitions. Word has length 67 [2021-11-23 14:04:48,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:48,417 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 595 transitions. [2021-11-23 14:04:48,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:48,417 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 595 transitions. [2021-11-23 14:04:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 14:04:48,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:48,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:48,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 14:04:48,418 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash 251866560, now seen corresponding path program 1 times [2021-11-23 14:04:48,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:48,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187974489] [2021-11-23 14:04:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:48,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:49,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:49,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187974489] [2021-11-23 14:04:49,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187974489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:49,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:49,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-23 14:04:49,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096541392] [2021-11-23 14:04:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:49,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:04:49,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:04:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:04:49,284 INFO L87 Difference]: Start difference. First operand 462 states and 595 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:52,009 INFO L93 Difference]: Finished difference Result 879 states and 1143 transitions. [2021-11-23 14:04:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:04:52,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-23 14:04:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:52,013 INFO L225 Difference]: With dead ends: 879 [2021-11-23 14:04:52,013 INFO L226 Difference]: Without dead ends: 482 [2021-11-23 14:04:52,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2021-11-23 14:04:52,015 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1343 mSDsluCounter, 3833 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:52,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1343 Valid, 4407 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 14:04:52,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-23 14:04:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 471. [2021-11-23 14:04:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 454 states have (on average 1.3325991189427313) internal successors, (605), 470 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:52,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 605 transitions. [2021-11-23 14:04:52,061 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 605 transitions. Word has length 69 [2021-11-23 14:04:52,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:52,061 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 605 transitions. [2021-11-23 14:04:52,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 605 transitions. [2021-11-23 14:04:52,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 14:04:52,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:52,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:52,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 14:04:52,064 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:52,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:52,074 INFO L85 PathProgramCache]: Analyzing trace with hash -736419282, now seen corresponding path program 1 times [2021-11-23 14:04:52,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:52,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986188867] [2021-11-23 14:04:52,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:52,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:52,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:52,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986188867] [2021-11-23 14:04:52,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986188867] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:04:52,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370062243] [2021-11-23 14:04:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:52,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:04:52,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:52,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:04:52,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:04:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:53,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 14:04:53,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:04:53,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:04:53,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370062243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:53,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 14:04:53,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2021-11-23 14:04:53,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964165961] [2021-11-23 14:04:53,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:53,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:04:53,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:53,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:04:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-11-23 14:04:53,447 INFO L87 Difference]: Start difference. First operand 471 states and 605 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:53,804 INFO L93 Difference]: Finished difference Result 1182 states and 1543 transitions. [2021-11-23 14:04:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:04:53,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-23 14:04:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:53,810 INFO L225 Difference]: With dead ends: 1182 [2021-11-23 14:04:53,811 INFO L226 Difference]: Without dead ends: 782 [2021-11-23 14:04:53,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-11-23 14:04:53,813 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 394 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:53,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 2217 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:04:53,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-11-23 14:04:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 462. [2021-11-23 14:04:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 445 states have (on average 1.3325842696629213) internal successors, (593), 461 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 593 transitions. [2021-11-23 14:04:53,887 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 593 transitions. Word has length 70 [2021-11-23 14:04:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:53,888 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 593 transitions. [2021-11-23 14:04:53,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 593 transitions. [2021-11-23 14:04:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 14:04:53,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:53,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:53,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:54,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:04:54,117 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:54,118 INFO L85 PathProgramCache]: Analyzing trace with hash 169832630, now seen corresponding path program 1 times [2021-11-23 14:04:54,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:54,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306360433] [2021-11-23 14:04:54,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:54,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:54,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:54,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306360433] [2021-11-23 14:04:54,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306360433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:54,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:54,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-23 14:04:54,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234832085] [2021-11-23 14:04:54,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:54,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 14:04:54,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:54,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 14:04:54,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2021-11-23 14:04:54,826 INFO L87 Difference]: Start difference. First operand 462 states and 593 transitions. Second operand has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:58,069 INFO L93 Difference]: Finished difference Result 1121 states and 1455 transitions. [2021-11-23 14:04:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:04:58,070 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-23 14:04:58,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:58,074 INFO L225 Difference]: With dead ends: 1121 [2021-11-23 14:04:58,074 INFO L226 Difference]: Without dead ends: 740 [2021-11-23 14:04:58,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=266, Invalid=1140, Unknown=0, NotChecked=0, Total=1406 [2021-11-23 14:04:58,076 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1823 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:58,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 5521 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 14:04:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-11-23 14:04:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 487. [2021-11-23 14:04:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 470 states have (on average 1.323404255319149) internal successors, (622), 486 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 622 transitions. [2021-11-23 14:04:58,115 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 622 transitions. Word has length 72 [2021-11-23 14:04:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:58,116 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 622 transitions. [2021-11-23 14:04:58,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 622 transitions. [2021-11-23 14:04:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 14:04:58,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:58,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:58,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 14:04:58,118 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:58,118 INFO L85 PathProgramCache]: Analyzing trace with hash 849891000, now seen corresponding path program 1 times [2021-11-23 14:04:58,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:58,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418407271] [2021-11-23 14:04:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:58,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:58,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:58,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418407271] [2021-11-23 14:04:58,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418407271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:58,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:58,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:04:58,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179362997] [2021-11-23 14:04:58,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:58,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:04:58,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:58,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:04:58,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:04:58,352 INFO L87 Difference]: Start difference. First operand 487 states and 622 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:59,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:59,170 INFO L93 Difference]: Finished difference Result 1066 states and 1381 transitions. [2021-11-23 14:04:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:04:59,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-23 14:04:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:59,189 INFO L225 Difference]: With dead ends: 1066 [2021-11-23 14:04:59,189 INFO L226 Difference]: Without dead ends: 680 [2021-11-23 14:04:59,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:04:59,191 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1926 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:59,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1926 Valid, 1830 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 14:04:59,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-11-23 14:04:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 487. [2021-11-23 14:04:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 470 states have (on average 1.3191489361702127) internal successors, (620), 486 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 620 transitions. [2021-11-23 14:04:59,226 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 620 transitions. Word has length 72 [2021-11-23 14:04:59,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:59,227 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 620 transitions. [2021-11-23 14:04:59,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 620 transitions. [2021-11-23 14:04:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 14:04:59,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:59,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:59,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 14:04:59,229 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:04:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash 147127688, now seen corresponding path program 1 times [2021-11-23 14:04:59,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:59,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551446542] [2021-11-23 14:04:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:59,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:00,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:05:00,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551446542] [2021-11-23 14:05:00,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551446542] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:05:00,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610319175] [2021-11-23 14:05:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:00,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:05:00,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:05:00,016 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:05:00,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:05:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:00,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 14:05:00,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:05:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:05:00,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:05:00,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610319175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:00,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 14:05:00,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2021-11-23 14:05:00,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097417067] [2021-11-23 14:05:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:00,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:05:00,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:05:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-23 14:05:00,753 INFO L87 Difference]: Start difference. First operand 487 states and 620 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:00,873 INFO L93 Difference]: Finished difference Result 949 states and 1211 transitions. [2021-11-23 14:05:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:05:00,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-23 14:05:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:00,877 INFO L225 Difference]: With dead ends: 949 [2021-11-23 14:05:00,877 INFO L226 Difference]: Without dead ends: 487 [2021-11-23 14:05:00,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2021-11-23 14:05:00,879 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:00,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1713 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-11-23 14:05:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 484. [2021-11-23 14:05:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 467 states have (on average 1.316916488222698) internal successors, (615), 483 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 615 transitions. [2021-11-23 14:05:00,917 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 615 transitions. Word has length 73 [2021-11-23 14:05:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:00,918 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 615 transitions. [2021-11-23 14:05:00,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 615 transitions. [2021-11-23 14:05:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 14:05:00,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:00,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:00,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 14:05:01,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 14:05:01,145 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:05:01,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:01,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1342261355, now seen corresponding path program 1 times [2021-11-23 14:05:01,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:01,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026932106] [2021-11-23 14:05:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:01,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:01,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:05:01,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992543658] [2021-11-23 14:05:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:01,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:05:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:05:01,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:05:01,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 14:05:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:01,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 88 conjunts are in the unsatisfiable core [2021-11-23 14:05:01,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:05:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:02,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2021-11-23 14:05:02,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:02,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 14:05:02,497 INFO L354 Elim1Store]: treesize reduction 228, result has 4.6 percent of original size [2021-11-23 14:05:02,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 106 [2021-11-23 14:05:02,507 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 14:05:02,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 84 [2021-11-23 14:05:02,515 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 14:05:02,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 75 [2021-11-23 14:05:02,771 INFO L354 Elim1Store]: treesize reduction 57, result has 17.4 percent of original size [2021-11-23 14:05:02,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 137 treesize of output 95 [2021-11-23 14:05:02,807 INFO L354 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2021-11-23 14:05:02,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 65 [2021-11-23 14:05:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:05:02,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:05:02,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:02,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026932106] [2021-11-23 14:05:02,893 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:05:02,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992543658] [2021-11-23 14:05:02,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992543658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:02,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:02,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-23 14:05:02,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672619955] [2021-11-23 14:05:02,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:02,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:05:02,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:02,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:05:02,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:05:02,898 INFO L87 Difference]: Start difference. First operand 484 states and 615 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:05,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:05,536 INFO L93 Difference]: Finished difference Result 1607 states and 2096 transitions. [2021-11-23 14:05:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:05:05,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-23 14:05:05,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:05,543 INFO L225 Difference]: With dead ends: 1607 [2021-11-23 14:05:05,544 INFO L226 Difference]: Without dead ends: 1226 [2021-11-23 14:05:05,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2021-11-23 14:05:05,546 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 3977 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 162 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:05,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3977 Valid, 6225 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1021 Invalid, 0 Unknown, 162 Unchecked, 1.7s Time] [2021-11-23 14:05:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2021-11-23 14:05:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 459. [2021-11-23 14:05:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 442 states have (on average 1.3257918552036199) internal successors, (586), 458 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 586 transitions. [2021-11-23 14:05:05,596 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 586 transitions. Word has length 76 [2021-11-23 14:05:05,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:05,596 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 586 transitions. [2021-11-23 14:05:05,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 586 transitions. [2021-11-23 14:05:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 14:05:05,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:05,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:05,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:05:05,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 14:05:05,813 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:05:05,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash 883042354, now seen corresponding path program 1 times [2021-11-23 14:05:05,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:05,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028657305] [2021-11-23 14:05:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:05,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:05,861 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:05:05,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000225480] [2021-11-23 14:05:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:05,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:05:05,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:05:05,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:05:05,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 14:05:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:06,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-23 14:05:06,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:05:07,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 36 [2021-11-23 14:05:07,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-23 14:05:07,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 14:05:07,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:05:07,991 INFO L354 Elim1Store]: treesize reduction 204, result has 18.1 percent of original size [2021-11-23 14:05:07,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 613 treesize of output 434 [2021-11-23 14:05:08,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,266 INFO L354 Elim1Store]: treesize reduction 308, result has 20.0 percent of original size [2021-11-23 14:05:08,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 798 treesize of output 640 [2021-11-23 14:05:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,430 INFO L354 Elim1Store]: treesize reduction 472, result has 19.3 percent of original size [2021-11-23 14:05:08,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 852 treesize of output 830 [2021-11-23 14:05:08,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,558 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:08,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 36 [2021-11-23 14:05:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 40 [2021-11-23 14:05:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,641 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:08,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 67 [2021-11-23 14:05:08,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,829 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:08,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 26 [2021-11-23 14:05:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,868 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 14:05:08,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 124 [2021-11-23 14:05:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,964 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:08,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 40 [2021-11-23 14:05:08,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:08,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 14 [2021-11-23 14:05:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:09,972 INFO L354 Elim1Store]: treesize reduction 266, result has 11.9 percent of original size [2021-11-23 14:05:09,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 205 treesize of output 174 [2021-11-23 14:05:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:10,039 INFO L354 Elim1Store]: treesize reduction 200, result has 11.5 percent of original size [2021-11-23 14:05:10,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 154 [2021-11-23 14:05:10,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:10,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:10,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 116 [2021-11-23 14:05:10,080 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 14:05:10,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 94 [2021-11-23 14:05:10,340 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-23 14:05:10,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 69 [2021-11-23 14:05:10,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:10,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:10,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 25 [2021-11-23 14:05:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:05:10,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:05:10,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028657305] [2021-11-23 14:05:10,754 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:05:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000225480] [2021-11-23 14:05:10,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000225480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:10,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:10,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-23 14:05:10,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188440209] [2021-11-23 14:05:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:10,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 14:05:10,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:10,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 14:05:10,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-23 14:05:10,757 INFO L87 Difference]: Start difference. First operand 459 states and 586 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:14,093 INFO L93 Difference]: Finished difference Result 1158 states and 1499 transitions. [2021-11-23 14:05:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:05:14,094 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-23 14:05:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:14,098 INFO L225 Difference]: With dead ends: 1158 [2021-11-23 14:05:14,098 INFO L226 Difference]: Without dead ends: 768 [2021-11-23 14:05:14,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2021-11-23 14:05:14,101 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 633 mSDsluCounter, 4510 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 264 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:14,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 5065 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 974 Invalid, 0 Unknown, 264 Unchecked, 2.1s Time] [2021-11-23 14:05:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-11-23 14:05:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 476. [2021-11-23 14:05:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 459 states have (on average 1.3159041394335511) internal successors, (604), 475 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 604 transitions. [2021-11-23 14:05:14,149 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 604 transitions. Word has length 78 [2021-11-23 14:05:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:14,149 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 604 transitions. [2021-11-23 14:05:14,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 604 transitions. [2021-11-23 14:05:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 14:05:14,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:14,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:14,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:05:14,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 14:05:14,364 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-23 14:05:14,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:14,364 INFO L85 PathProgramCache]: Analyzing trace with hash 786896422, now seen corresponding path program 1 times [2021-11-23 14:05:14,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:14,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141287137] [2021-11-23 14:05:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:14,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:14,424 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:05:14,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571760092] [2021-11-23 14:05:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:14,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:05:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:05:14,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:05:14,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_127b5500-4615-4fd4-a344-7743760c01a5/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 14:05:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:15,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 217 conjunts are in the unsatisfiable core [2021-11-23 14:05:15,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:05:15,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:05:15,386 INFO L354 Elim1Store]: treesize reduction 133, result has 15.3 percent of original size [2021-11-23 14:05:15,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 45 treesize of output 53 [2021-11-23 14:05:15,768 INFO L354 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2021-11-23 14:05:15,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 41 [2021-11-23 14:05:16,138 INFO L354 Elim1Store]: treesize reduction 78, result has 20.4 percent of original size [2021-11-23 14:05:16,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 35 treesize of output 45 [2021-11-23 14:05:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:16,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:16,653 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-23 14:05:16,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 31 treesize of output 50 [2021-11-23 14:05:16,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2021-11-23 14:05:16,889 INFO L354 Elim1Store]: treesize reduction 156, result has 17.5 percent of original size [2021-11-23 14:05:16,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 78 treesize of output 95 [2021-11-23 14:05:17,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 14:05:19,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:05:19,968 INFO L354 Elim1Store]: treesize reduction 204, result has 18.1 percent of original size [2021-11-23 14:05:19,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 440 treesize of output 317 [2021-11-23 14:05:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,106 INFO L354 Elim1Store]: treesize reduction 308, result has 20.0 percent of original size [2021-11-23 14:05:20,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 595 treesize of output 485 [2021-11-23 14:05:20,205 INFO L354 Elim1Store]: treesize reduction 198, result has 21.4 percent of original size [2021-11-23 14:05:20,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 254 treesize of output 290 [2021-11-23 14:05:20,229 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:20,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 278 treesize of output 270 [2021-11-23 14:05:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,256 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:20,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 264 treesize of output 248 [2021-11-23 14:05:20,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:20,275 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:20,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 239 treesize of output 219 [2021-11-23 14:05:20,291 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:05:20,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 210 treesize of output 202 [2021-11-23 14:05:32,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:33,048 INFO L354 Elim1Store]: treesize reduction 104, result has 42.5 percent of original size [2021-11-23 14:05:33,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 157 [2021-11-23 14:05:33,545 INFO L354 Elim1Store]: treesize reduction 84, result has 21.5 percent of original size [2021-11-23 14:05:33,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 105 treesize of output 106 [2021-11-23 14:05:33,573 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 14:05:33,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 97 treesize of output 81 [2021-11-23 14:05:33,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:34,040 INFO L354 Elim1Store]: treesize reduction 113, result has 21.5 percent of original size [2021-11-23 14:05:34,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 158 treesize of output 143 [2021-11-23 14:05:34,065 INFO L354 Elim1Store]: treesize reduction 83, result has 23.1 percent of original size [2021-11-23 14:05:34,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 188 [2021-11-23 14:05:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:34,110 INFO L354 Elim1Store]: treesize reduction 184, result has 17.9 percent of original size [2021-11-23 14:05:34,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 185 treesize of output 180 [2021-11-23 14:05:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:05:36,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:05:36,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:05:36,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 12 [2021-11-23 14:05:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:05:36,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:05:37,993 INFO L354 Elim1Store]: treesize reduction 8, result has 79.5 percent of original size [2021-11-23 14:05:37,993 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 177 treesize of output 166 [2021-11-23 14:06:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:06:56,518 WARN L227 SmtUtils]: Spent 45.72s on a formula simplification. DAG size of input: 1107 DAG size of output: 274 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 14:06:56,519 INFO L354 Elim1Store]: treesize reduction 30001, result has 5.3 percent of original size [2021-11-23 14:06:56,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 25 new quantified variables, introduced 81 case distinctions, treesize of input 1229269576 treesize of output 753541117