./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:41:21,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:41:21,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:41:21,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:41:21,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:41:21,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:41:21,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:41:21,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:41:21,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:41:21,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:41:21,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:41:21,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:41:21,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:41:21,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:41:21,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:41:21,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:41:21,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:41:21,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:41:21,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:41:21,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:41:21,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:41:21,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:41:21,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:41:21,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:41:21,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:41:21,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:41:21,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:41:21,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:41:21,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:41:21,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:41:21,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:41:21,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:41:21,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:41:21,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:41:21,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:41:21,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:41:21,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:41:21,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:41:21,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:41:21,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:41:21,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:41:21,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 10:41:21,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:41:21,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:41:21,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:41:21,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:41:21,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:41:21,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:41:21,298 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:41:21,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:41:21,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:41:21,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:41:21,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:41:21,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:41:21,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:41:21,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:41:21,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:41:21,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:41:21,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:41:21,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:41:21,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:41:21,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:41:21,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:41:21,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:41:21,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:41:21,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:41:21,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:41:21,303 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:41:21,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:41:21,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:41:21,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:41:21,304 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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-09 10:41:21,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:41:21,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:41:21,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:41:21,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:41:21,592 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:41:21,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-09 10:41:21,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/data/bb3e0a02e/e0918cea244b4e41a1135d698419631d/FLAGcd44c75a1 [2021-11-09 10:41:22,383 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:41:22,383 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-09 10:41:22,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/data/bb3e0a02e/e0918cea244b4e41a1135d698419631d/FLAGcd44c75a1 [2021-11-09 10:41:22,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/data/bb3e0a02e/e0918cea244b4e41a1135d698419631d [2021-11-09 10:41:22,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:41:22,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:41:22,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:22,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:41:22,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:41:22,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:22" (1/1) ... [2021-11-09 10:41:22,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586495ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:22, skipping insertion in model container [2021-11-09 10:41:22,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:41:22" (1/1) ... [2021-11-09 10:41:22,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:41:22,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:41:22,989 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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-09 10:41:23,000 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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-09 10:41:23,025 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 10:41:23,039 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 10:41:23,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 10:41:24,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,027 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 10:41:24,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 10:41:24,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 10:41:24,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 10:41:24,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 10:41:24,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 10:41:24,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 10:41:24,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 10:41:24,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 10:41:24,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 10:41:24,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:24,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:24,915 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:41:24,947 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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-09 10:41:24,947 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_0e545c67-3d83-481a-96a7-87a10a6bb0ee/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-09 10:41:24,949 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 10:41:24,950 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 10:41:25,004 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 10:41:25,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 10:41:25,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 10:41:25,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 10:41:25,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 10:41:25,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 10:41:25,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 10:41:25,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 10:41:25,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 10:41:25,078 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 10:41:25,079 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 10:41:25,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 10:41:25,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:41:25,490 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:41:25,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25 WrapperNode [2021-11-09 10:41:25,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:41:25,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:25,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:41:25,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:41:25,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:41:25,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:41:25,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:41:25,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:41:25,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:41:25,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:41:25,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:41:25,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:41:25,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (1/1) ... [2021-11-09 10:41:25,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:41:25,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:25,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:41:25,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:41:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:41:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:41:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:41:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:41:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:41:25,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:41:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:41:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-09 10:41:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:41:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:41:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:41:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:41:37,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:41:37,398 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2021-11-09 10:41:37,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:37 BoogieIcfgContainer [2021-11-09 10:41:37,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:41:37,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:41:37,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:41:37,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:41:37,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:41:22" (1/3) ... [2021-11-09 10:41:37,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5e98b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:41:37, skipping insertion in model container [2021-11-09 10:41:37,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:41:25" (2/3) ... [2021-11-09 10:41:37,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5e98b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:41:37, skipping insertion in model container [2021-11-09 10:41:37,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:41:37" (3/3) ... [2021-11-09 10:41:37,418 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-09 10:41:37,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:41:37,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-09 10:41:37,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:41:37,516 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 10:41:37,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-09 10:41:37,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 10:41:37,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-09 10:41:37,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:37,565 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] [2021-11-09 10:41:37,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:37,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:37,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2021-11-09 10:41:37,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:37,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269564635] [2021-11-09 10:41:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:37,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:38,395 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 10:41:38,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:38,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269564635] [2021-11-09 10:41:38,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269564635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:38,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:38,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:41:38,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827722167] [2021-11-09 10:41:38,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 10:41:38,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:38,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 10:41:38,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:41:38,427 INFO L87 Difference]: Start difference. First operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 10:41:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:38,481 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2021-11-09 10:41:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:41:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-11-09 10:41:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:38,493 INFO L225 Difference]: With dead ends: 407 [2021-11-09 10:41:38,493 INFO L226 Difference]: Without dead ends: 199 [2021-11-09 10:41:38,496 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 10:41:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-09 10:41:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-09 10:41:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 198 states have internal predecessors, (245), 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 10:41:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2021-11-09 10:41:38,544 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2021-11-09 10:41:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:38,545 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2021-11-09 10:41:38,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 10:41:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2021-11-09 10:41:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-09 10:41:38,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:38,548 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:38,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:41:38,548 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:38,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2021-11-09 10:41:38,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:38,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112644371] [2021-11-09 10:41:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:38,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:38,671 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:41:38,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621750731] [2021-11-09 10:41:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:38,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:38,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:38,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:41:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:39,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 10:41:39,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:40,384 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 10:41:40,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:40,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112644371] [2021-11-09 10:41:40,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:41:40,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621750731] [2021-11-09 10:41:40,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621750731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:40,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:40,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 10:41:40,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713887654] [2021-11-09 10:41:40,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 10:41:40,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:40,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 10:41:40,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 10:41:40,389 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:40,927 INFO L93 Difference]: Finished difference Result 372 states and 455 transitions. [2021-11-09 10:41:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 10:41:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-09 10:41:40,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:40,930 INFO L225 Difference]: With dead ends: 372 [2021-11-09 10:41:40,931 INFO L226 Difference]: Without dead ends: 237 [2021-11-09 10:41:40,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-09 10:41:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-09 10:41:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2021-11-09 10:41:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 198 states have internal predecessors, (244), 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 10:41:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2021-11-09 10:41:40,958 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2021-11-09 10:41:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:40,958 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2021-11-09 10:41:40,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2021-11-09 10:41:40,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 10:41:40,961 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:40,961 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:41,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:41,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-09 10:41:41,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:41,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash 802072627, now seen corresponding path program 1 times [2021-11-09 10:41:41,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:41,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47514027] [2021-11-09 10:41:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:41,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:41,308 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:41:41,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482211263] [2021-11-09 10:41:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:41,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:41,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:41,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:41,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 10:41:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:42,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:41:42,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:42,634 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 10:41:42,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:42,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47514027] [2021-11-09 10:41:42,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:41:42,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482211263] [2021-11-09 10:41:42,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482211263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:42,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:42,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:41:42,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893076464] [2021-11-09 10:41:42,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:41:42,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:41:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:41:42,638 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:42,985 INFO L93 Difference]: Finished difference Result 360 states and 452 transitions. [2021-11-09 10:41:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:41:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-09 10:41:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:42,989 INFO L225 Difference]: With dead ends: 360 [2021-11-09 10:41:42,989 INFO L226 Difference]: Without dead ends: 224 [2021-11-09 10:41:42,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 10:41:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-09 10:41:43,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2021-11-09 10:41:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 200 states have (on average 1.27) internal successors, (254), 208 states have internal predecessors, (254), 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 10:41:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2021-11-09 10:41:43,006 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 57 [2021-11-09 10:41:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:43,007 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2021-11-09 10:41:43,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2021-11-09 10:41:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 10:41:43,009 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:43,010 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:43,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-09 10:41:43,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:43,235 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:43,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash -972934735, now seen corresponding path program 1 times [2021-11-09 10:41:43,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:43,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608898080] [2021-11-09 10:41:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:43,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:43,342 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:41:43,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365031790] [2021-11-09 10:41:43,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:43,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:43,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:43,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 10:41:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:44,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 10:41:44,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:45,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-09 10:41:45,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-09 10:41:45,664 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 10:41:45,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:45,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608898080] [2021-11-09 10:41:45,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:41:45,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365031790] [2021-11-09 10:41:45,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365031790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:45,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:45,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 10:41:45,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074695773] [2021-11-09 10:41:45,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 10:41:45,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:45,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 10:41:45,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-09 10:41:45,669 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:51,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:51,560 INFO L93 Difference]: Finished difference Result 403 states and 489 transitions. [2021-11-09 10:41:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 10:41:51,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-09 10:41:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:51,564 INFO L225 Difference]: With dead ends: 403 [2021-11-09 10:41:51,564 INFO L226 Difference]: Without dead ends: 259 [2021-11-09 10:41:51,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-09 10:41:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-09 10:41:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 207. [2021-11-09 10:41:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 206 states have internal predecessors, (251), 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 10:41:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2021-11-09 10:41:51,591 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 57 [2021-11-09 10:41:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:51,592 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2021-11-09 10:41:51,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2021-11-09 10:41:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-09 10:41:51,594 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:51,594 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] [2021-11-09 10:41:51,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:51,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:51,823 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -702926311, now seen corresponding path program 1 times [2021-11-09 10:41:51,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:51,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988784685] [2021-11-09 10:41:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:51,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:51,947 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:41:51,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336321619] [2021-11-09 10:41:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:51,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:51,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:51,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:51,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 10:41:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:41:52,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 10:41:52,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:53,211 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 10:41:53,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:41:53,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988784685] [2021-11-09 10:41:53,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:41:53,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336321619] [2021-11-09 10:41:53,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336321619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:41:53,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:41:53,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 10:41:53,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23207664] [2021-11-09 10:41:53,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:41:53,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:41:53,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:41:53,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:41:53,214 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:41:58,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:58,675 INFO L93 Difference]: Finished difference Result 452 states and 555 transitions. [2021-11-09 10:41:58,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 10:41:58,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-11-09 10:41:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:58,678 INFO L225 Difference]: With dead ends: 452 [2021-11-09 10:41:58,678 INFO L226 Difference]: Without dead ends: 307 [2021-11-09 10:41:58,679 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 10:41:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-09 10:41:58,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 214. [2021-11-09 10:41:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 213 states have internal predecessors, (258), 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 10:41:58,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-11-09 10:41:58,693 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 59 [2021-11-09 10:41:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:58,693 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-11-09 10:41:58,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 10:41:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2021-11-09 10:41:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-09 10:41:58,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:58,695 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] [2021-11-09 10:41:58,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:58,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:58,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:41:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash -645668009, now seen corresponding path program 1 times [2021-11-09 10:41:58,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:41:58,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962880266] [2021-11-09 10:41:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:58,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:41:59,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:41:59,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153977355] [2021-11-09 10:41:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:41:59,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:41:59,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:41:59,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:41:59,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 10:47:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:16,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 10:47:16,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:47:16,882 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 10:47:16,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:47:16,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962880266] [2021-11-09 10:47:16,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:47:16,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153977355] [2021-11-09 10:47:16,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153977355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:47:16,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:47:16,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:47:16,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119020021] [2021-11-09 10:47:16,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:47:16,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:47:16,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:47:16,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:47:16,885 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 10:47:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:47:16,913 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions. [2021-11-09 10:47:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:47:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-09 10:47:16,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:47:16,916 INFO L225 Difference]: With dead ends: 398 [2021-11-09 10:47:16,916 INFO L226 Difference]: Without dead ends: 214 [2021-11-09 10:47:16,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 10:47:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-09 10:47:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-09 10:47:16,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2536585365853659) internal successors, (257), 213 states have internal predecessors, (257), 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 10:47:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-09 10:47:16,929 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 59 [2021-11-09 10:47:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:47:16,930 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-09 10:47:16,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 10:47:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-09 10:47:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-09 10:47:16,931 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:47:16,932 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] [2021-11-09 10:47:17,150 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-09 10:47:17,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:17,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-09 10:47:17,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:47:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1838986612, now seen corresponding path program 1 times [2021-11-09 10:47:17,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:17,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676402598] [2021-11-09 10:47:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:17,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:17,299 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:47:17,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562872246] [2021-11-09 10:47:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:17,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:47:17,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:17,301 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:47:17,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 10:54:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:54:03,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 10:54:03,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:54:04,209 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 10:54:04,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:54:04,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676402598] [2021-11-09 10:54:04,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:54:04,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562872246] [2021-11-09 10:54:04,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562872246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:54:04,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:54:04,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:54:04,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166360599] [2021-11-09 10:54:04,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:54:04,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:54:04,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:54:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:54:04,213 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:54:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:54:04,259 INFO L93 Difference]: Finished difference Result 400 states and 485 transitions. [2021-11-09 10:54:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:54:04,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-09 10:54:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:54:04,262 INFO L225 Difference]: With dead ends: 400 [2021-11-09 10:54:04,262 INFO L226 Difference]: Without dead ends: 216 [2021-11-09 10:54:04,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:54:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-09 10:54:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-09 10:54:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.2524271844660195) internal successors, (258), 214 states have internal predecessors, (258), 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 10:54:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 258 transitions. [2021-11-09 10:54:04,279 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 258 transitions. Word has length 60 [2021-11-09 10:54:04,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:54:04,280 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 258 transitions. [2021-11-09 10:54:04,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:54:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 258 transitions. [2021-11-09 10:54:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-09 10:54:04,282 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:54:04,282 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] [2021-11-09 10:54:04,494 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2021-11-09 10:54:04,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:54:04,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:54:04,517 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-09 10:54:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:54:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1314664846, now seen corresponding path program 1 times [2021-11-09 10:54:04,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:54:04,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514681670] [2021-11-09 10:54:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:04,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:54:04,621 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:54:04,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881831643] [2021-11-09 10:54:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:04,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:54:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:54:04,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:54:04,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e545c67-3d83-481a-96a7-87a10a6bb0ee/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process