./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX --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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:44:39,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:44:39,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:44:39,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:44:39,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:44:39,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:44:39,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:44:39,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:44:39,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:44:39,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:44:39,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:44:39,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:44:39,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:44:39,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:44:39,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:44:39,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:44:39,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:44:39,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:44:39,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:44:39,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:44:39,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:44:39,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:44:39,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:44:39,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:44:39,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:44:39,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:44:39,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:44:39,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:44:39,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:44:39,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:44:39,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:44:39,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:44:39,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:44:39,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:44:39,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:44:39,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:44:39,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:44:39,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:44:39,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:44:39,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:44:39,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:44:39,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:44:39,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:44:39,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:44:39,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:44:39,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:44:39,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:44:39,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:44:39,594 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:44:39,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:44:39,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:44:39,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:44:39,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:44:39,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:44:39,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:44:39,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:44:39,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:44:39,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:44:39,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:44:39,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:44:39,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:44:39,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:44:39,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:44:39,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:44:39,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:44:39,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:44:39,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:44:39,598 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:44:39,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:44:39,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:44:39,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:44:39,599 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_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2021-11-09 08:44:39,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:44:39,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:44:39,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:44:39,891 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:44:39,892 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:44:39,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-09 08:44:39,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/data/5062cecfb/e1775b4b9ecc4e49954aa43735255b33/FLAG12194b177 [2021-11-09 08:44:41,085 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:44:41,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-09 08:44:41,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/data/5062cecfb/e1775b4b9ecc4e49954aa43735255b33/FLAG12194b177 [2021-11-09 08:44:41,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/data/5062cecfb/e1775b4b9ecc4e49954aa43735255b33 [2021-11-09 08:44:41,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:44:41,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:44:41,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:44:41,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:44:41,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:44:41,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:41" (1/1) ... [2021-11-09 08:44:41,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc25741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:41, skipping insertion in model container [2021-11-09 08:44:41,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:41" (1/1) ... [2021-11-09 08:44:41,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:44:41,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:44:42,091 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-09 08:44:42,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-09 08:44:42,133 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:44:42,140 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:44:43,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:43,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:44:43,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:44:43,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:44:43,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:44:43,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:44:43,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:44:43,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:44:44,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:44:44,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:44:44,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:44:44,244 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:44:44,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:44,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:44:45,060 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:44:45,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-09 08:44:45,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-09 08:44:45,081 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:44:45,082 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:44:45,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:44:45,195 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:44:45,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:44:45,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:44:45,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:44:45,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:44:45,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:44:45,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:44:45,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:44:45,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:44:45,244 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:44:45,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:44:45,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:44:45,814 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:44:45,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45 WrapperNode [2021-11-09 08:44:45,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:44:45,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:44:45,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:44:45,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:44:45,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:45,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:44:46,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:44:46,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:44:46,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:44:46,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:44:46,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:44:46,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:44:46,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:44:46,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (1/1) ... [2021-11-09 08:44:46,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:44:46,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:46,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:44:46,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:44:46,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-09 08:44:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:44:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:44:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:44:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:44:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:44:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-09 08:44:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:44:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-09 08:44:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:44:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:44:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:44:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-09 08:44:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-09 08:44:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:44:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:45:01,547 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !true; [2021-11-09 08:45:01,548 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume !true; [2021-11-09 08:45:01,548 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !true; [2021-11-09 08:45:01,548 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !true; [2021-11-09 08:45:01,548 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume !true; [2021-11-09 08:45:01,548 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##327: assume !true; [2021-11-09 08:45:01,549 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !true; [2021-11-09 08:45:01,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:45:01,576 INFO L299 CfgBuilder]: Removed 384 assume(true) statements. [2021-11-09 08:45:01,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:45:01 BoogieIcfgContainer [2021-11-09 08:45:01,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:45:01,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:45:01,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:45:01,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:45:01,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:44:41" (1/3) ... [2021-11-09 08:45:01,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1474b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:45:01, skipping insertion in model container [2021-11-09 08:45:01,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:45" (2/3) ... [2021-11-09 08:45:01,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1474b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:45:01, skipping insertion in model container [2021-11-09 08:45:01,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:45:01" (3/3) ... [2021-11-09 08:45:01,593 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2021-11-09 08:45:01,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:45:01,600 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-09 08:45:01,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:45:01,656 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 [2021-11-09 08:45:01,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-09 08:45:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 388 states have (on average 1.440721649484536) internal successors, (559), 409 states have internal predecessors, (559), 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) [2021-11-09 08:45:01,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-09 08:45:01,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:01,698 INFO L513 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] [2021-11-09 08:45:01,699 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash -714573874, now seen corresponding path program 1 times [2021-11-09 08:45:01,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:01,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068516582] [2021-11-09 08:45:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:01,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:02,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:02,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068516582] [2021-11-09 08:45:02,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068516582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:02,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:02,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:45:02,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577598357] [2021-11-09 08:45:02,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:45:02,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:45:02,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:45:02,699 INFO L87 Difference]: Start difference. First operand has 410 states, 388 states have (on average 1.440721649484536) internal successors, (559), 409 states have internal predecessors, (559), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-09 08:45:02,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:02,800 INFO L93 Difference]: Finished difference Result 814 states and 1111 transitions. [2021-11-09 08:45:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:45:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-09 08:45:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:02,819 INFO L225 Difference]: With dead ends: 814 [2021-11-09 08:45:02,820 INFO L226 Difference]: Without dead ends: 401 [2021-11-09 08:45:02,826 INFO L786 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 [2021-11-09 08:45:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-09 08:45:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-11-09 08:45:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 380 states have (on average 1.2815789473684212) internal successors, (487), 400 states have internal predecessors, (487), 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) [2021-11-09 08:45:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 487 transitions. [2021-11-09 08:45:02,905 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 487 transitions. Word has length 47 [2021-11-09 08:45:02,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:02,906 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 487 transitions. [2021-11-09 08:45:02,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-09 08:45:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 487 transitions. [2021-11-09 08:45:02,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-09 08:45:02,908 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:02,908 INFO L513 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] [2021-11-09 08:45:02,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:45:02,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1373789074, now seen corresponding path program 1 times [2021-11-09 08:45:02,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:02,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660248561] [2021-11-09 08:45:02,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:02,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:03,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:45:03,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017730] [2021-11-09 08:45:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:03,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:03,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:03,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:03,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:45:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:04,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 2548 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:45:04,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:04,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:04,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660248561] [2021-11-09 08:45:04,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:45:04,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017730] [2021-11-09 08:45:04,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:04,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:04,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:45:04,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620552338] [2021-11-09 08:45:04,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:45:04,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:04,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:45:04,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:04,843 INFO L87 Difference]: Start difference. First operand 401 states and 487 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2021-11-09 08:45:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:05,294 INFO L93 Difference]: Finished difference Result 1153 states and 1402 transitions. [2021-11-09 08:45:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:45:05,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2021-11-09 08:45:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:05,307 INFO L225 Difference]: With dead ends: 1153 [2021-11-09 08:45:05,307 INFO L226 Difference]: Without dead ends: 774 [2021-11-09 08:45:05,310 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:45:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-09 08:45:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 407. [2021-11-09 08:45:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 386 states have (on average 1.2772020725388602) internal successors, (493), 406 states have internal predecessors, (493), 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) [2021-11-09 08:45:05,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 493 transitions. [2021-11-09 08:45:05,361 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 493 transitions. Word has length 47 [2021-11-09 08:45:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:05,362 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 493 transitions. [2021-11-09 08:45:05,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2021-11-09 08:45:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 493 transitions. [2021-11-09 08:45:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-09 08:45:05,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:05,365 INFO L513 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] [2021-11-09 08:45:05,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:05,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:05,588 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash 882870646, now seen corresponding path program 1 times [2021-11-09 08:45:05,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:05,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933672130] [2021-11-09 08:45:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:05,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:06,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:06,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933672130] [2021-11-09 08:45:06,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933672130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:06,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:06,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:06,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698216763] [2021-11-09 08:45:06,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:06,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:06,700 INFO L87 Difference]: Start difference. First operand 407 states and 493 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-09 08:45:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:07,654 INFO L93 Difference]: Finished difference Result 979 states and 1186 transitions. [2021-11-09 08:45:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:07,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2021-11-09 08:45:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:07,659 INFO L225 Difference]: With dead ends: 979 [2021-11-09 08:45:07,660 INFO L226 Difference]: Without dead ends: 621 [2021-11-09 08:45:07,661 INFO L786 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 [2021-11-09 08:45:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-11-09 08:45:07,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 407. [2021-11-09 08:45:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 386 states have (on average 1.2642487046632125) internal successors, (488), 406 states have internal predecessors, (488), 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) [2021-11-09 08:45:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 488 transitions. [2021-11-09 08:45:07,680 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 488 transitions. Word has length 49 [2021-11-09 08:45:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 488 transitions. [2021-11-09 08:45:07,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-09 08:45:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 488 transitions. [2021-11-09 08:45:07,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-09 08:45:07,684 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:07,684 INFO L513 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] [2021-11-09 08:45:07,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:45:07,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:07,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:07,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1130342015, now seen corresponding path program 1 times [2021-11-09 08:45:07,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:07,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047750554] [2021-11-09 08:45:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:08,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:08,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047750554] [2021-11-09 08:45:08,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047750554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:08,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:08,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:45:08,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673743356] [2021-11-09 08:45:08,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:45:08,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:45:08,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:45:08,459 INFO L87 Difference]: Start difference. First operand 407 states and 488 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-09 08:45:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:08,706 INFO L93 Difference]: Finished difference Result 407 states and 488 transitions. [2021-11-09 08:45:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:45:08,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-09 08:45:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:08,710 INFO L225 Difference]: With dead ends: 407 [2021-11-09 08:45:08,711 INFO L226 Difference]: Without dead ends: 405 [2021-11-09 08:45:08,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:45:08,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-09 08:45:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-11-09 08:45:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 385 states have (on average 1.2623376623376623) internal successors, (486), 404 states have internal predecessors, (486), 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) [2021-11-09 08:45:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 486 transitions. [2021-11-09 08:45:08,729 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 486 transitions. Word has length 50 [2021-11-09 08:45:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:08,730 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 486 transitions. [2021-11-09 08:45:08,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-09 08:45:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 486 transitions. [2021-11-09 08:45:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 08:45:08,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:08,732 INFO L513 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] [2021-11-09 08:45:08,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:45:08,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1166493950, now seen corresponding path program 1 times [2021-11-09 08:45:08,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:08,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717757171] [2021-11-09 08:45:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:08,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:09,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:09,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717757171] [2021-11-09 08:45:09,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717757171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:09,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:09,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:09,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791897390] [2021-11-09 08:45:09,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:09,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:09,510 INFO L87 Difference]: Start difference. First operand 405 states and 486 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) [2021-11-09 08:45:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:10,091 INFO L93 Difference]: Finished difference Result 927 states and 1136 transitions. [2021-11-09 08:45:10,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:45:10,092 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 [2021-11-09 08:45:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:10,099 INFO L225 Difference]: With dead ends: 927 [2021-11-09 08:45:10,099 INFO L226 Difference]: Without dead ends: 925 [2021-11-09 08:45:10,100 INFO L786 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 [2021-11-09 08:45:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-11-09 08:45:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 407. [2021-11-09 08:45:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 387 states have (on average 1.2609819121447028) internal successors, (488), 406 states have internal predecessors, (488), 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) [2021-11-09 08:45:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 488 transitions. [2021-11-09 08:45:10,119 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 488 transitions. Word has length 57 [2021-11-09 08:45:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:10,120 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 488 transitions. [2021-11-09 08:45:10,120 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) [2021-11-09 08:45:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 488 transitions. [2021-11-09 08:45:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 08:45:10,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:10,122 INFO L513 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] [2021-11-09 08:45:10,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:45:10,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1166434368, now seen corresponding path program 1 times [2021-11-09 08:45:10,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:10,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303254865] [2021-11-09 08:45:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:10,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:10,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:10,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303254865] [2021-11-09 08:45:10,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303254865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:10,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:10,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:10,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037125291] [2021-11-09 08:45:10,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:10,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:10,810 INFO L87 Difference]: Start difference. First operand 407 states and 488 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) [2021-11-09 08:45:11,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:11,392 INFO L93 Difference]: Finished difference Result 924 states and 1133 transitions. [2021-11-09 08:45:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:45:11,396 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 [2021-11-09 08:45:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:11,404 INFO L225 Difference]: With dead ends: 924 [2021-11-09 08:45:11,404 INFO L226 Difference]: Without dead ends: 922 [2021-11-09 08:45:11,405 INFO L786 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 [2021-11-09 08:45:11,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-11-09 08:45:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 403. [2021-11-09 08:45:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 384 states have (on average 1.2604166666666667) internal successors, (484), 402 states have internal predecessors, (484), 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) [2021-11-09 08:45:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 484 transitions. [2021-11-09 08:45:11,423 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 484 transitions. Word has length 57 [2021-11-09 08:45:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:11,426 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 484 transitions. [2021-11-09 08:45:11,426 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) [2021-11-09 08:45:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 484 transitions. [2021-11-09 08:45:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-09 08:45:11,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:11,433 INFO L513 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] [2021-11-09 08:45:11,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:45:11,433 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:11,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1790035597, now seen corresponding path program 1 times [2021-11-09 08:45:11,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:11,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844393309] [2021-11-09 08:45:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:11,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:11,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:11,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844393309] [2021-11-09 08:45:11,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844393309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:11,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:11,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:45:11,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710677235] [2021-11-09 08:45:11,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:45:11,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:11,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:45:11,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:45:11,917 INFO L87 Difference]: Start difference. First operand 403 states and 484 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2021-11-09 08:45:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:12,118 INFO L93 Difference]: Finished difference Result 1083 states and 1305 transitions. [2021-11-09 08:45:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:45:12,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 [2021-11-09 08:45:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:12,125 INFO L225 Difference]: With dead ends: 1083 [2021-11-09 08:45:12,125 INFO L226 Difference]: Without dead ends: 752 [2021-11-09 08:45:12,126 INFO L786 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 [2021-11-09 08:45:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-11-09 08:45:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 421. [2021-11-09 08:45:12,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 402 states have (on average 1.2537313432835822) internal successors, (504), 420 states have internal predecessors, (504), 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) [2021-11-09 08:45:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 504 transitions. [2021-11-09 08:45:12,148 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 504 transitions. Word has length 63 [2021-11-09 08:45:12,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:12,149 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 504 transitions. [2021-11-09 08:45:12,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2021-11-09 08:45:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 504 transitions. [2021-11-09 08:45:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-09 08:45:12,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:12,152 INFO L513 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] [2021-11-09 08:45:12,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 08:45:12,153 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 778918347, now seen corresponding path program 1 times [2021-11-09 08:45:12,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:12,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333533784] [2021-11-09 08:45:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:12,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:12,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:12,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333533784] [2021-11-09 08:45:12,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333533784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:12,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:12,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:45:12,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157045633] [2021-11-09 08:45:12,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:45:12,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:45:12,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:45:12,819 INFO L87 Difference]: Start difference. First operand 421 states and 504 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) [2021-11-09 08:45:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:13,682 INFO L93 Difference]: Finished difference Result 1267 states and 1538 transitions. [2021-11-09 08:45:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:45:13,686 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 [2021-11-09 08:45:13,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:13,692 INFO L225 Difference]: With dead ends: 1267 [2021-11-09 08:45:13,692 INFO L226 Difference]: Without dead ends: 948 [2021-11-09 08:45:13,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:45:13,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2021-11-09 08:45:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 435. [2021-11-09 08:45:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 416 states have (on average 1.2548076923076923) internal successors, (522), 434 states have internal predecessors, (522), 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) [2021-11-09 08:45:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 522 transitions. [2021-11-09 08:45:13,731 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 522 transitions. Word has length 63 [2021-11-09 08:45:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:13,731 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 522 transitions. [2021-11-09 08:45:13,732 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) [2021-11-09 08:45:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 522 transitions. [2021-11-09 08:45:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-09 08:45:13,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:13,733 INFO L513 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] [2021-11-09 08:45:13,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:45:13,734 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:13,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2077020756, now seen corresponding path program 1 times [2021-11-09 08:45:13,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:13,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076561020] [2021-11-09 08:45:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:13,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:14,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:14,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076561020] [2021-11-09 08:45:14,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076561020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:14,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:14,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 08:45:14,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555352334] [2021-11-09 08:45:14,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:45:14,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:45:14,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:45:14,463 INFO L87 Difference]: Start difference. First operand 435 states and 522 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-11-09 08:45:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:17,214 INFO L93 Difference]: Finished difference Result 1385 states and 1681 transitions. [2021-11-09 08:45:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:45:17,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-11-09 08:45:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:17,222 INFO L225 Difference]: With dead ends: 1385 [2021-11-09 08:45:17,222 INFO L226 Difference]: Without dead ends: 1105 [2021-11-09 08:45:17,223 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:45:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-11-09 08:45:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 435. [2021-11-09 08:45:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 416 states have (on average 1.2524038461538463) internal successors, (521), 434 states have internal predecessors, (521), 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) [2021-11-09 08:45:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 521 transitions. [2021-11-09 08:45:17,270 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 521 transitions. Word has length 65 [2021-11-09 08:45:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:17,270 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 521 transitions. [2021-11-09 08:45:17,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-11-09 08:45:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 521 transitions. [2021-11-09 08:45:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-09 08:45:17,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:17,275 INFO L513 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] [2021-11-09 08:45:17,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:45:17,277 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 887585029, now seen corresponding path program 1 times [2021-11-09 08:45:17,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:17,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870676066] [2021-11-09 08:45:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:17,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:17,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:17,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:17,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870676066] [2021-11-09 08:45:17,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870676066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:17,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:17,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:45:17,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102940267] [2021-11-09 08:45:17,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:45:17,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:17,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:45:17,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:45:17,812 INFO L87 Difference]: Start difference. First operand 435 states and 521 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-09 08:45:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:17,981 INFO L93 Difference]: Finished difference Result 769 states and 922 transitions. [2021-11-09 08:45:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:45:17,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-09 08:45:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:17,987 INFO L225 Difference]: With dead ends: 769 [2021-11-09 08:45:17,987 INFO L226 Difference]: Without dead ends: 722 [2021-11-09 08:45:17,988 INFO L786 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 [2021-11-09 08:45:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-11-09 08:45:18,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 437. [2021-11-09 08:45:18,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 418 states have (on average 1.2511961722488039) internal successors, (523), 436 states have internal predecessors, (523), 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) [2021-11-09 08:45:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 523 transitions. [2021-11-09 08:45:18,038 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 523 transitions. Word has length 66 [2021-11-09 08:45:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:18,039 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 523 transitions. [2021-11-09 08:45:18,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-09 08:45:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 523 transitions. [2021-11-09 08:45:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-09 08:45:18,044 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:18,044 INFO L513 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] [2021-11-09 08:45:18,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 08:45:18,045 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:45:18,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash -35081086, now seen corresponding path program 1 times [2021-11-09 08:45:18,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:18,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977330307] [2021-11-09 08:45:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:18,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:21,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:21,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977330307] [2021-11-09 08:45:21,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977330307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:21,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:21,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-09 08:45:21,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632622838] [2021-11-09 08:45:21,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:45:21,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:45:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:45:21,358 INFO L87 Difference]: Start difference. First operand 437 states and 523 transitions. Second operand has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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) [2021-11-09 08:46:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:07,753 INFO L93 Difference]: Finished difference Result 1104 states and 1325 transitions. [2021-11-09 08:46:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 08:46:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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 66 [2021-11-09 08:46:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:07,759 INFO L225 Difference]: With dead ends: 1104 [2021-11-09 08:46:07,759 INFO L226 Difference]: Without dead ends: 705 [2021-11-09 08:46:07,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:46:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-11-09 08:46:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 439. [2021-11-09 08:46:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 420 states have (on average 1.25) internal successors, (525), 438 states have internal predecessors, (525), 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) [2021-11-09 08:46:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 525 transitions. [2021-11-09 08:46:07,812 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 525 transitions. Word has length 66 [2021-11-09 08:46:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:07,813 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 525 transitions. [2021-11-09 08:46:07,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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) [2021-11-09 08:46:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 525 transitions. [2021-11-09 08:46:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-09 08:46:07,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:07,815 INFO L513 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] [2021-11-09 08:46:07,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 08:46:07,816 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:46:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2084468928, now seen corresponding path program 1 times [2021-11-09 08:46:07,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:07,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000463562] [2021-11-09 08:46:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:07,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:08,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:08,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000463562] [2021-11-09 08:46:08,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000463562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:46:08,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:46:08,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:46:08,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504896629] [2021-11-09 08:46:08,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:46:08,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:08,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:46:08,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:46:08,126 INFO L87 Difference]: Start difference. First operand 439 states and 525 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-09 08:46:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:08,291 INFO L93 Difference]: Finished difference Result 841 states and 1007 transitions. [2021-11-09 08:46:08,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:46:08,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-09 08:46:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:08,295 INFO L225 Difference]: With dead ends: 841 [2021-11-09 08:46:08,295 INFO L226 Difference]: Without dead ends: 437 [2021-11-09 08:46:08,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:46:08,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-11-09 08:46:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2021-11-09 08:46:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 418 states have (on average 1.244019138755981) internal successors, (520), 436 states have internal predecessors, (520), 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) [2021-11-09 08:46:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 520 transitions. [2021-11-09 08:46:08,336 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 520 transitions. Word has length 66 [2021-11-09 08:46:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:08,337 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 520 transitions. [2021-11-09 08:46:08,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-09 08:46:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 520 transitions. [2021-11-09 08:46:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-09 08:46:08,338 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:08,338 INFO L513 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] [2021-11-09 08:46:08,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 08:46:08,339 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:46:08,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash 101777543, now seen corresponding path program 1 times [2021-11-09 08:46:08,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:08,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584870106] [2021-11-09 08:46:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:08,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:08,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:08,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584870106] [2021-11-09 08:46:08,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584870106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:46:08,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:46:08,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:46:08,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626248865] [2021-11-09 08:46:08,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:46:08,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:46:08,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:46:08,713 INFO L87 Difference]: Start difference. First operand 437 states and 520 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-09 08:46:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:15,441 INFO L93 Difference]: Finished difference Result 1024 states and 1225 transitions. [2021-11-09 08:46:15,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:46:15,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2021-11-09 08:46:15,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:15,450 INFO L225 Difference]: With dead ends: 1024 [2021-11-09 08:46:15,450 INFO L226 Difference]: Without dead ends: 624 [2021-11-09 08:46:15,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:46:15,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-11-09 08:46:15,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 437. [2021-11-09 08:46:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 418 states have (on average 1.2392344497607655) internal successors, (518), 436 states have internal predecessors, (518), 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) [2021-11-09 08:46:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 518 transitions. [2021-11-09 08:46:15,496 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 518 transitions. Word has length 68 [2021-11-09 08:46:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:15,496 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 518 transitions. [2021-11-09 08:46:15,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-09 08:46:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 518 transitions. [2021-11-09 08:46:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-09 08:46:15,498 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:15,498 INFO L513 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] [2021-11-09 08:46:15,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 08:46:15,498 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:46:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1549707702, now seen corresponding path program 1 times [2021-11-09 08:46:15,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:15,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929322844] [2021-11-09 08:46:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:15,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:19,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:19,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929322844] [2021-11-09 08:46:19,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929322844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:46:19,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:46:19,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:46:19,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747478364] [2021-11-09 08:46:19,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:46:19,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:46:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:46:19,031 INFO L87 Difference]: Start difference. First operand 437 states and 518 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 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) [2021-11-09 08:46:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:19,450 INFO L93 Difference]: Finished difference Result 1011 states and 1199 transitions. [2021-11-09 08:46:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:46:19,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 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 [2021-11-09 08:46:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:19,455 INFO L225 Difference]: With dead ends: 1011 [2021-11-09 08:46:19,455 INFO L226 Difference]: Without dead ends: 599 [2021-11-09 08:46:19,456 INFO L786 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 [2021-11-09 08:46:19,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-09 08:46:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 434. [2021-11-09 08:46:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 415 states have (on average 1.236144578313253) internal successors, (513), 433 states have internal predecessors, (513), 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) [2021-11-09 08:46:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 513 transitions. [2021-11-09 08:46:19,503 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 513 transitions. Word has length 69 [2021-11-09 08:46:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:19,504 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 513 transitions. [2021-11-09 08:46:19,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 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) [2021-11-09 08:46:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 513 transitions. [2021-11-09 08:46:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-09 08:46:19,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:19,505 INFO L513 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] [2021-11-09 08:46:19,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 08:46:19,506 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-09 08:46:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1770425789, now seen corresponding path program 1 times [2021-11-09 08:46:19,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:19,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880008761] [2021-11-09 08:46:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:19,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:19,606 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:46:19,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116345569] [2021-11-09 08:46:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:19,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:19,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:19,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7868b367-73cc-479d-b8b5-aaaf265dc566/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process