./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_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_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/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_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/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_d74fcd71-623c-40d7-b40e-58796d10520e/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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:40:45,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:40:45,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:40:45,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:40:45,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:40:45,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:40:45,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:40:45,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:40:45,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:40:45,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:40:45,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:40:45,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:40:45,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:40:45,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:40:45,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:40:45,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:40:45,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:40:45,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:40:45,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:40:45,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:40:45,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:40:45,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:40:45,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:40:45,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:40:45,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:40:45,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:40:45,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:40:45,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:40:45,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:40:45,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:40:45,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:40:45,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:40:45,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:40:45,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:40:45,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:40:45,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:40:45,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:40:45,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:40:45,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:40:45,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:40:45,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:40:45,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:40:45,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:40:45,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:40:45,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:40:45,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:40:45,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:40:45,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:40:45,327 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:40:45,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:40:45,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:40:45,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:40:45,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:40:45,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:40:45,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:40:45,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:40:45,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:40:45,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:40:45,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:40:45,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:40:45,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:40:45,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:45,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:40:45,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:40:45,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:40:45,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:40:45,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:40:45,334 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:40:45,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:40:45,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:40:45,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:40:45,336 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_d74fcd71-623c-40d7-b40e-58796d10520e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-09 08:40:45,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:40:45,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:40:45,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:40:45,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:40:45,721 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:40:45,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-09 08:40:45,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/data/8e8a6d480/aa65eb075d5046e0bb55d625017e1895/FLAGfe7bfc9cc [2021-11-09 08:40:46,895 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:40:46,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-09 08:40:46,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/data/8e8a6d480/aa65eb075d5046e0bb55d625017e1895/FLAGfe7bfc9cc [2021-11-09 08:40:47,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/data/8e8a6d480/aa65eb075d5046e0bb55d625017e1895 [2021-11-09 08:40:47,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:40:47,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:40:47,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:47,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:40:47,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:40:47,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:47" (1/1) ... [2021-11-09 08:40:47,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16fd5ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:47, skipping insertion in model container [2021-11-09 08:40:47,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:47" (1/1) ... [2021-11-09 08:40:47,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:40:47,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:40:47,776 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_d74fcd71-623c-40d7-b40e-58796d10520e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-09 08:40:47,784 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_d74fcd71-623c-40d7-b40e-58796d10520e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-09 08:40:47,811 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:40:47,818 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:40:48,987 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:40:49,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,170 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:40:49,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:40:49,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:40:49,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:40:49,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:40:49,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:40:49,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:40:49,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:40:49,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:40:49,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:40:49,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:49,916 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:40:49,933 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_d74fcd71-623c-40d7-b40e-58796d10520e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-09 08:40:49,934 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_d74fcd71-623c-40d7-b40e-58796d10520e/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-09 08:40:49,936 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:40:49,937 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:40:49,978 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:40:49,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:49,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:40:50,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:40:50,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:40:50,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:40:50,090 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:40:50,091 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:40:50,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:40:50,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:40:50,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:40:50,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:40:50,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:40:50,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:50,630 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:40:50,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50 WrapperNode [2021-11-09 08:40:50,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:50,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:50,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:40:50,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:40:50,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:50,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:50,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:50,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:40:50,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:40:50,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:40:50,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:50,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:50,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:50,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:51,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:51,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:51,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:51,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:40:51,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:40:51,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:40:51,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:40:51,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (1/1) ... [2021-11-09 08:40:51,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:51,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:40:51,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:40:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:40:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:40:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:40:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:40:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:40:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:40:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:40:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-09 08:40:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:40:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-09 08:40:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:40:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:40:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:40:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:41:04,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:41:04,348 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-09 08:41:04,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:41:04 BoogieIcfgContainer [2021-11-09 08:41:04,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:41:04,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:41:04,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:41:04,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:41:04,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:40:47" (1/3) ... [2021-11-09 08:41:04,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe49000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:41:04, skipping insertion in model container [2021-11-09 08:41:04,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:50" (2/3) ... [2021-11-09 08:41:04,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe49000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:41:04, skipping insertion in model container [2021-11-09 08:41:04,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:41:04" (3/3) ... [2021-11-09 08:41:04,363 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-09 08:41:04,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:41:04,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-09 08:41:04,433 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:41:04,441 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 08:41:04,442 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-09 08:41:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 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 08:41:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 08:41:04,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:04,480 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] [2021-11-09 08:41:04,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-09 08:41:04,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:04,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972379797] [2021-11-09 08:41:04,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:04,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:05,449 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 08:41:05,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:05,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972379797] [2021-11-09 08:41:05,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972379797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:05,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:05,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:41:05,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888416231] [2021-11-09 08:41:05,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:41:05,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:41:05,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:41:05,492 INFO L87 Difference]: Start difference. First operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 08:41:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:05,600 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-09 08:41:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:41:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2021-11-09 08:41:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:05,630 INFO L225 Difference]: With dead ends: 694 [2021-11-09 08:41:05,632 INFO L226 Difference]: Without dead ends: 341 [2021-11-09 08:41:05,641 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 08:41:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-09 08:41:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-09 08:41:05,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 340 states have internal predecessors, (419), 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 08:41:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-09 08:41:05,754 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-09 08:41:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:05,754 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-09 08:41:05,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 08:41:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-09 08:41:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 08:41:05,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:05,759 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] [2021-11-09 08:41:05,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:41:05,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:05,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-09 08:41:05,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:05,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174923161] [2021-11-09 08:41:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:05,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:06,166 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 08:41:06,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:06,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174923161] [2021-11-09 08:41:06,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174923161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:06,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:06,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:06,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776589344] [2021-11-09 08:41:06,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:06,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:06,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:06,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:06,174 INFO L87 Difference]: Start difference. First operand 341 states and 419 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 08:41:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:06,250 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-09 08:41:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-09 08:41:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:06,256 INFO L225 Difference]: With dead ends: 669 [2021-11-09 08:41:06,257 INFO L226 Difference]: Without dead ends: 342 [2021-11-09 08:41:06,260 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 08:41:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-09 08:41:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-09 08:41:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 341 states have internal predecessors, (420), 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 08:41:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-09 08:41:06,294 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-09 08:41:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:06,294 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-09 08:41:06,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 08:41:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-09 08:41:06,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 08:41:06,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:06,304 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] [2021-11-09 08:41:06,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:41:06,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:06,319 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-09 08:41:06,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:06,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710663661] [2021-11-09 08:41:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:06,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:06,761 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 08:41:06,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:06,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710663661] [2021-11-09 08:41:06,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710663661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:06,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:06,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:41:06,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683003567] [2021-11-09 08:41:06,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:41:06,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:06,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:41:06,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:41:06,765 INFO L87 Difference]: Start difference. First operand 342 states and 420 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 08:41:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:07,307 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2021-11-09 08:41:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:41:07,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-09 08:41:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:07,311 INFO L225 Difference]: With dead ends: 652 [2021-11-09 08:41:07,311 INFO L226 Difference]: Without dead ends: 342 [2021-11-09 08:41:07,312 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 08:41:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-09 08:41:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-09 08:41:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 341 states have internal predecessors, (417), 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 08:41:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-09 08:41:07,326 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 34 [2021-11-09 08:41:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:07,327 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-09 08:41:07,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 08:41:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-09 08:41:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-09 08:41:07,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:07,330 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 08:41:07,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:41:07,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:07,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1339226978, now seen corresponding path program 1 times [2021-11-09 08:41:07,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:07,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369124873] [2021-11-09 08:41:07,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:07,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:07,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:41:07,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822520209] [2021-11-09 08:41:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:07,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:07,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:07,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:07,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:41:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:08,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:41:08,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:41:09,107 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 08:41:09,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:09,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369124873] [2021-11-09 08:41:09,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:41:09,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822520209] [2021-11-09 08:41:09,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822520209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:09,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:09,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:41:09,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577085483] [2021-11-09 08:41:09,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:41:09,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:41:09,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:41:09,112 INFO L87 Difference]: Start difference. First operand 342 states and 417 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 08:41:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:09,942 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2021-11-09 08:41:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:41:09,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 08:41:09,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:09,946 INFO L225 Difference]: With dead ends: 713 [2021-11-09 08:41:09,947 INFO L226 Difference]: Without dead ends: 402 [2021-11-09 08:41:09,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:41:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-09 08:41:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 366. [2021-11-09 08:41:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 365 states have internal predecessors, (441), 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 08:41:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 441 transitions. [2021-11-09 08:41:09,963 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 441 transitions. Word has length 50 [2021-11-09 08:41:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 441 transitions. [2021-11-09 08:41:09,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 08:41:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 441 transitions. [2021-11-09 08:41:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-09 08:41:09,966 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:09,966 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 08:41:10,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:41:10,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:10,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:10,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash -521578528, now seen corresponding path program 1 times [2021-11-09 08:41:10,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:10,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706705087] [2021-11-09 08:41:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:10,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:10,308 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:41:10,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164063293] [2021-11-09 08:41:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:10,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:10,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:10,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:10,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:41:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:11,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:41:11,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:41:12,040 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 08:41:12,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:12,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706705087] [2021-11-09 08:41:12,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:41:12,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164063293] [2021-11-09 08:41:12,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164063293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:12,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:12,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:41:12,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610933379] [2021-11-09 08:41:12,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:41:12,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:12,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:41:12,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:41:12,045 INFO L87 Difference]: Start difference. First operand 366 states and 441 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 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 08:41:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:12,851 INFO L93 Difference]: Finished difference Result 657 states and 790 transitions. [2021-11-09 08:41:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:41:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 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 08:41:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:12,854 INFO L225 Difference]: With dead ends: 657 [2021-11-09 08:41:12,855 INFO L226 Difference]: Without dead ends: 366 [2021-11-09 08:41:12,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:41:12,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-09 08:41:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-09 08:41:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2536023054755043) internal successors, (435), 365 states have internal predecessors, (435), 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 08:41:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2021-11-09 08:41:12,872 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 50 [2021-11-09 08:41:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:12,873 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2021-11-09 08:41:12,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 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 08:41:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2021-11-09 08:41:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-09 08:41:12,874 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:12,875 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] [2021-11-09 08:41:12,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:41:13,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:13,088 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:13,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1101114756, now seen corresponding path program 1 times [2021-11-09 08:41:13,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:13,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330936108] [2021-11-09 08:41:13,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:13,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:13,201 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:41:13,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076719468] [2021-11-09 08:41:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:13,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:13,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:13,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:13,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:41:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:14,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:41:14,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:41:14,798 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 08:41:14,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:14,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330936108] [2021-11-09 08:41:14,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:41:14,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076719468] [2021-11-09 08:41:14,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076719468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:14,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:14,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:41:14,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287720020] [2021-11-09 08:41:14,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:41:14,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:41:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:41:14,803 INFO L87 Difference]: Start difference. First operand 366 states and 435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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 08:41:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:15,512 INFO L93 Difference]: Finished difference Result 595 states and 698 transitions. [2021-11-09 08:41:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:41:15,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2021-11-09 08:41:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:15,516 INFO L225 Difference]: With dead ends: 595 [2021-11-09 08:41:15,516 INFO L226 Difference]: Without dead ends: 366 [2021-11-09 08:41:15,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:41:15,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-09 08:41:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-09 08:41:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.244956772334294) internal successors, (432), 365 states have internal predecessors, (432), 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 08:41:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2021-11-09 08:41:15,536 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 58 [2021-11-09 08:41:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:15,537 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2021-11-09 08:41:15,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 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 08:41:15,537 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2021-11-09 08:41:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-09 08:41:15,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:15,539 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 08:41:15,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:41:15,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-09 08:41:15,756 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:15,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:15,757 INFO L85 PathProgramCache]: Analyzing trace with hash -997775264, now seen corresponding path program 1 times [2021-11-09 08:41:15,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:15,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000293968] [2021-11-09 08:41:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:15,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:15,865 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:41:15,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838882259] [2021-11-09 08:41:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:15,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:15,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:15,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:15,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:41:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:16,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:41:16,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:41:17,217 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 08:41:17,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:17,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000293968] [2021-11-09 08:41:17,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:41:17,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838882259] [2021-11-09 08:41:17,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838882259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:17,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:17,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:41:17,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161638287] [2021-11-09 08:41:17,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:41:17,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:41:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:41:17,221 INFO L87 Difference]: Start difference. First operand 366 states and 432 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 08:41:17,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:17,398 INFO L93 Difference]: Finished difference Result 864 states and 1013 transitions. [2021-11-09 08:41:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:41:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 08:41:17,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:17,406 INFO L225 Difference]: With dead ends: 864 [2021-11-09 08:41:17,406 INFO L226 Difference]: Without dead ends: 630 [2021-11-09 08:41:17,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:41:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-09 08:41:17,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 369. [2021-11-09 08:41:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 350 states have (on average 1.2428571428571429) internal successors, (435), 368 states have internal predecessors, (435), 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 08:41:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 435 transitions. [2021-11-09 08:41:17,433 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 435 transitions. Word has length 66 [2021-11-09 08:41:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:17,434 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 435 transitions. [2021-11-09 08:41:17,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 08:41:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 435 transitions. [2021-11-09 08:41:17,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-09 08:41:17,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:17,437 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 08:41:17,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:41:17,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 08:41:17,664 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-09 08:41:17,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash -843218652, now seen corresponding path program 1 times [2021-11-09 08:41:17,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:17,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992262037] [2021-11-09 08:41:17,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:17,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:17,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:41:17,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401629074] [2021-11-09 08:41:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:17,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:17,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:17,793 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:17,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74fcd71-623c-40d7-b40e-58796d10520e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:47:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:27,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 299 conjunts are in the unsatisfiable core [2021-11-09 08:47:27,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:27,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-09 08:47:27,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:47:27,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-09 08:47:27,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-09 08:47:27,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-09 08:47:27,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-09 08:47:28,232 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-09 08:47:28,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-09 08:47:28,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:28,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-09 08:47:29,725 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-09 08:47:29,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 54 [2021-11-09 08:47:30,590 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-09 08:47:30,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 92 [2021-11-09 08:47:34,393 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-09 08:47:34,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 84 treesize of output 109 [2021-11-09 08:47:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 08:47:38,651 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-09 08:47:38,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 114 [2021-11-09 08:47:51,685 INFO L354 Elim1Store]: treesize reduction 150, result has 30.6 percent of original size [2021-11-09 08:47:51,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 138 treesize of output 190