./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:33:00,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:33:00,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:33:00,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:33:00,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:33:00,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:33:00,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:33:00,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:33:00,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:33:00,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:33:00,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:33:00,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:33:00,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:33:00,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:33:00,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:33:00,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:33:00,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:33:00,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:33:00,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:33:00,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:33:00,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:33:00,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:33:00,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:33:00,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:33:00,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:33:00,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:33:00,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:33:00,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:33:00,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:33:00,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:33:00,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:33:00,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:33:00,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:33:00,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:33:00,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:33:00,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:33:00,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:33:00,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:33:00,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:33:00,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:33:00,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:33:00,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:33:00,665 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:33:00,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:33:00,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:33:00,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:33:00,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:33:00,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:33:00,673 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:33:00,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:33:00,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:33:00,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:33:00,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:33:00,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:33:00,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:33:00,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:33:00,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:33:00,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:33:00,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:33:00,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:33:00,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:33:00,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:33:00,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:33:00,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:33:00,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:33:00,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:33:00,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:33:00,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:33:00,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:33:00,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:33:00,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:33:00,681 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-09 08:33:00,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:33:01,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:33:01,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:33:01,029 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:33:01,030 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:33:01,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-09 08:33:01,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/9f88680a8/cdd03a826d064a08b0db8035025434dd/FLAGc015b8a15 [2021-11-09 08:33:01,908 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:33:01,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-09 08:33:01,976 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/9f88680a8/cdd03a826d064a08b0db8035025434dd/FLAGc015b8a15 [2021-11-09 08:33:02,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/9f88680a8/cdd03a826d064a08b0db8035025434dd [2021-11-09 08:33:02,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:33:02,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:33:02,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:33:02,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:33:02,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:33:02,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:33:02" (1/1) ... [2021-11-09 08:33:02,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35daa3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:02, skipping insertion in model container [2021-11-09 08:33:02,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:33:02" (1/1) ... [2021-11-09 08:33:02,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:33:02,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:33:02,901 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-09 08:33:02,908 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-09 08:33:02,931 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:33:02,937 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:33:03,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:03,843 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:33:04,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:33:04,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:33:04,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:33:04,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:33:04,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:33:04,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:33:04,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:33:04,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:33:04,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:33:04,459 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:33:04,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:33:04,655 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:33:04,680 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-09 08:33:04,682 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-09 08:33:04,685 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:33:04,695 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:33:04,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:04,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:33:04,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:33:04,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:33:04,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:33:04,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:33:04,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:33:04,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:33:04,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:33:04,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:33:04,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:33:04,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:33:04,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:33:05,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:33:05,286 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:33:05,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05 WrapperNode [2021-11-09 08:33:05,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:33:05,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:33:05,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:33:05,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:33:05,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:05,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:33:06,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:33:06,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:33:06,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:33:06,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:33:06,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:33:06,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:33:06,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:33:06,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (1/1) ... [2021-11-09 08:33:06,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:33:06,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:33:06,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:33:06,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:33:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:33:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 08:33:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:33:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:33:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:33:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:33:06,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:33:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 08:33:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:33:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-09 08:33:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:33:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:33:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:33:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:33:32,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:33:32,309 INFO L299 CfgBuilder]: Removed 2646 assume(true) statements. [2021-11-09 08:33:32,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:33:32 BoogieIcfgContainer [2021-11-09 08:33:32,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:33:32,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:33:32,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:33:32,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:33:32,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:33:02" (1/3) ... [2021-11-09 08:33:32,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fd5f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:33:32, skipping insertion in model container [2021-11-09 08:33:32,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:33:05" (2/3) ... [2021-11-09 08:33:32,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fd5f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:33:32, skipping insertion in model container [2021-11-09 08:33:32,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:33:32" (3/3) ... [2021-11-09 08:33:32,339 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2021-11-09 08:33:32,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:33:32,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-09 08:33:32,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:33:32,458 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:33:32,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-09 08:33:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:33:32,590 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:32,591 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] [2021-11-09 08:33:32,591 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:32,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash 462763660, now seen corresponding path program 1 times [2021-11-09 08:33:32,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:32,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237159307] [2021-11-09 08:33:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:32,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:33:33,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:33:33,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237159307] [2021-11-09 08:33:33,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237159307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:33,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:33,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:33:33,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324418317] [2021-11-09 08:33:33,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:33:33,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:33:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:33:33,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:33:33,558 INFO L87 Difference]: Start difference. First operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:33,710 INFO L93 Difference]: Finished difference Result 6676 states and 9247 transitions. [2021-11-09 08:33:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:33:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:33:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:33,749 INFO L225 Difference]: With dead ends: 6676 [2021-11-09 08:33:33,749 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:33:33,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:33:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:33:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:33:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327485380116959) internal successors, (4313), 3335 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4313 transitions. [2021-11-09 08:33:33,945 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4313 transitions. Word has length 55 [2021-11-09 08:33:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:33,946 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4313 transitions. [2021-11-09 08:33:33,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4313 transitions. [2021-11-09 08:33:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:33:33,955 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:33,956 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] [2021-11-09 08:33:33,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:33:33,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:33,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash -349284918, now seen corresponding path program 1 times [2021-11-09 08:33:33,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:33,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435608037] [2021-11-09 08:33:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:33,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:34,384 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 08:33:34,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:33:34,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435608037] [2021-11-09 08:33:34,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435608037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:34,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:34,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:33:34,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005549035] [2021-11-09 08:33:34,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:33:34,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:33:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:33:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:33:34,393 INFO L87 Difference]: Start difference. First operand 3336 states and 4313 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:35,658 INFO L93 Difference]: Finished difference Result 6604 states and 8535 transitions. [2021-11-09 08:33:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:33:35,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:33:35,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:35,677 INFO L225 Difference]: With dead ends: 6604 [2021-11-09 08:33:35,678 INFO L226 Difference]: Without dead ends: 3348 [2021-11-09 08:33:35,685 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:33:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2021-11-09 08:33:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3336. [2021-11-09 08:33:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3265620190827947) internal successors, (4310), 3335 states have internal predecessors, (4310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4310 transitions. [2021-11-09 08:33:35,793 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4310 transitions. Word has length 55 [2021-11-09 08:33:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:35,795 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4310 transitions. [2021-11-09 08:33:35,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4310 transitions. [2021-11-09 08:33:35,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-09 08:33:35,798 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:35,798 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:33:35,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:33:35,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:35,800 INFO L85 PathProgramCache]: Analyzing trace with hash -44069140, now seen corresponding path program 1 times [2021-11-09 08:33:35,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:35,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156647275] [2021-11-09 08:33:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:35,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:33:36,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:33:36,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156647275] [2021-11-09 08:33:36,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156647275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:36,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:36,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:33:36,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965243380] [2021-11-09 08:33:36,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:33:36,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:33:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:33:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:33:36,291 INFO L87 Difference]: Start difference. First operand 3336 states and 4310 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:42,899 INFO L93 Difference]: Finished difference Result 9015 states and 11551 transitions. [2021-11-09 08:33:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:33:42,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-09 08:33:42,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:42,939 INFO L225 Difference]: With dead ends: 9015 [2021-11-09 08:33:42,939 INFO L226 Difference]: Without dead ends: 5727 [2021-11-09 08:33:42,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:33:42,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2021-11-09 08:33:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 3336. [2021-11-09 08:33:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3256386580486303) internal successors, (4307), 3335 states have internal predecessors, (4307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4307 transitions. [2021-11-09 08:33:43,115 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4307 transitions. Word has length 63 [2021-11-09 08:33:43,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:43,116 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4307 transitions. [2021-11-09 08:33:43,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:43,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4307 transitions. [2021-11-09 08:33:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 08:33:43,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:43,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:33:43,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:33:43,119 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash 170313652, now seen corresponding path program 1 times [2021-11-09 08:33:43,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:43,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928497703] [2021-11-09 08:33:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:43,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:43,277 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:33:43,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025553121] [2021-11-09 08:33:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:43,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:33:43,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:33:43,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:33:43,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:33:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:44,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:33:44,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:33:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:33:45,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:33:45,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928497703] [2021-11-09 08:33:45,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:33:45,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025553121] [2021-11-09 08:33:45,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025553121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:45,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:45,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:33:45,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605596217] [2021-11-09 08:33:45,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:33:45,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:33:45,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:33:45,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:33:45,020 INFO L87 Difference]: Start difference. First operand 3336 states and 4307 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:49,254 INFO L93 Difference]: Finished difference Result 6593 states and 8512 transitions. [2021-11-09 08:33:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:33:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2021-11-09 08:33:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:49,278 INFO L225 Difference]: With dead ends: 6593 [2021-11-09 08:33:49,279 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:33:49,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:33:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:33:49,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:33:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3253308710372422) internal successors, (4306), 3335 states have internal predecessors, (4306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:49,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4306 transitions. [2021-11-09 08:33:49,430 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4306 transitions. Word has length 79 [2021-11-09 08:33:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:49,433 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4306 transitions. [2021-11-09 08:33:49,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4306 transitions. [2021-11-09 08:33:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-09 08:33:49,436 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:49,437 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:33:49,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:33:49,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:33:49,651 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:49,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:49,652 INFO L85 PathProgramCache]: Analyzing trace with hash 541385251, now seen corresponding path program 1 times [2021-11-09 08:33:49,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:49,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139120582] [2021-11-09 08:33:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:49,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:49,792 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:33:49,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378454591] [2021-11-09 08:33:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:49,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:33:49,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:33:49,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:33:49,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:33:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:50,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 2755 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:33:50,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:33:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:33:51,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:33:51,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139120582] [2021-11-09 08:33:51,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:33:51,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378454591] [2021-11-09 08:33:51,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378454591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:51,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:51,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:33:51,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64233171] [2021-11-09 08:33:51,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:33:51,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:33:51,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:33:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:33:51,525 INFO L87 Difference]: Start difference. First operand 3336 states and 4306 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:57,928 INFO L93 Difference]: Finished difference Result 9201 states and 11813 transitions. [2021-11-09 08:33:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:33:57,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 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 91 [2021-11-09 08:33:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:57,965 INFO L225 Difference]: With dead ends: 9201 [2021-11-09 08:33:57,965 INFO L226 Difference]: Without dead ends: 5928 [2021-11-09 08:33:57,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:33:57,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2021-11-09 08:33:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 3336. [2021-11-09 08:33:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3237919359803016) internal successors, (4301), 3335 states have internal predecessors, (4301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4301 transitions. [2021-11-09 08:33:58,137 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4301 transitions. Word has length 91 [2021-11-09 08:33:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:58,138 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4301 transitions. [2021-11-09 08:33:58,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4301 transitions. [2021-11-09 08:33:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-09 08:33:58,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:33:58,146 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:33:58,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:33:58,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:33:58,367 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:33:58,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:33:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1200811894, now seen corresponding path program 1 times [2021-11-09 08:33:58,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:33:58,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740042478] [2021-11-09 08:33:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:58,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:33:58,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:33:58,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626652930] [2021-11-09 08:33:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:33:58,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:33:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:33:58,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:33:58,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:33:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:33:59,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:33:59,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:00,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:00,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740042478] [2021-11-09 08:34:00,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:00,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626652930] [2021-11-09 08:34:00,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626652930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:00,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:00,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:34:00,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046082069] [2021-11-09 08:34:00,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:34:00,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:00,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:34:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:34:00,189 INFO L87 Difference]: Start difference. First operand 3336 states and 4301 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:06,114 INFO L93 Difference]: Finished difference Result 6558 states and 8455 transitions. [2021-11-09 08:34:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:34:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 119 [2021-11-09 08:34:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:06,135 INFO L225 Difference]: With dead ends: 6558 [2021-11-09 08:34:06,135 INFO L226 Difference]: Without dead ends: 3405 [2021-11-09 08:34:06,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:34:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2021-11-09 08:34:06,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3336. [2021-11-09 08:34:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3231763619575254) internal successors, (4299), 3335 states have internal predecessors, (4299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4299 transitions. [2021-11-09 08:34:06,377 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4299 transitions. Word has length 119 [2021-11-09 08:34:06,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:06,378 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4299 transitions. [2021-11-09 08:34:06,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4299 transitions. [2021-11-09 08:34:06,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 08:34:06,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:06,383 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:06,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:06,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-09 08:34:06,603 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:06,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1513903148, now seen corresponding path program 1 times [2021-11-09 08:34:06,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:06,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532441454] [2021-11-09 08:34:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:06,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:06,758 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:06,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316859246] [2021-11-09 08:34:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:06,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:06,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:06,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:06,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:34:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 3180 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:34:07,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:08,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:08,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532441454] [2021-11-09 08:34:08,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:08,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316859246] [2021-11-09 08:34:08,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316859246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:08,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:08,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:34:08,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862929306] [2021-11-09 08:34:08,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:34:08,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:34:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:34:08,287 INFO L87 Difference]: Start difference. First operand 3336 states and 4299 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:15,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:15,597 INFO L93 Difference]: Finished difference Result 7285 states and 9465 transitions. [2021-11-09 08:34:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:34:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 135 [2021-11-09 08:34:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:15,630 INFO L225 Difference]: With dead ends: 7285 [2021-11-09 08:34:15,635 INFO L226 Difference]: Without dead ends: 3996 [2021-11-09 08:34:15,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:34:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3996 states. [2021-11-09 08:34:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3996 to 3600. [2021-11-09 08:34:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3513 states have (on average 1.2988898377455167) internal successors, (4563), 3599 states have internal predecessors, (4563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 4563 transitions. [2021-11-09 08:34:15,810 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 4563 transitions. Word has length 135 [2021-11-09 08:34:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:15,810 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 4563 transitions. [2021-11-09 08:34:15,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 4563 transitions. [2021-11-09 08:34:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 08:34:15,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:15,813 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:15,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:16,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 08:34:16,023 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash 175040594, now seen corresponding path program 1 times [2021-11-09 08:34:16,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:16,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765599250] [2021-11-09 08:34:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:16,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:16,152 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:16,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310179572] [2021-11-09 08:34:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:16,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:16,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:16,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:34:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:17,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 3185 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 08:34:17,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:17,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:17,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765599250] [2021-11-09 08:34:17,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:17,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310179572] [2021-11-09 08:34:17,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310179572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:17,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:17,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:34:17,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128808330] [2021-11-09 08:34:17,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:34:17,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:34:17,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:34:17,988 INFO L87 Difference]: Start difference. First operand 3600 states and 4563 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:22,804 INFO L93 Difference]: Finished difference Result 17589 states and 22302 transitions. [2021-11-09 08:34:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:34:22,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 135 [2021-11-09 08:34:22,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:22,840 INFO L225 Difference]: With dead ends: 17589 [2021-11-09 08:34:22,841 INFO L226 Difference]: Without dead ends: 14102 [2021-11-09 08:34:22,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:34:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14102 states. [2021-11-09 08:34:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14102 to 3621. [2021-11-09 08:34:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3534 states have (on average 1.2985285795132995) internal successors, (4589), 3620 states have internal predecessors, (4589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4589 transitions. [2021-11-09 08:34:23,129 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4589 transitions. Word has length 135 [2021-11-09 08:34:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:23,130 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4589 transitions. [2021-11-09 08:34:23,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4589 transitions. [2021-11-09 08:34:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 08:34:23,132 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:23,132 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:23,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:23,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:23,355 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1736001964, now seen corresponding path program 1 times [2021-11-09 08:34:23,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:23,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246502856] [2021-11-09 08:34:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:23,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:23,485 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:23,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840511820] [2021-11-09 08:34:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:23,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:23,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:23,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:23,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 08:34:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:24,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:34:24,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:25,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:25,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246502856] [2021-11-09 08:34:25,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:25,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840511820] [2021-11-09 08:34:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840511820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:25,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:25,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:34:25,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455052372] [2021-11-09 08:34:25,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:34:25,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:34:25,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:34:25,790 INFO L87 Difference]: Start difference. First operand 3621 states and 4589 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:26,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:26,857 INFO L93 Difference]: Finished difference Result 10541 states and 13363 transitions. [2021-11-09 08:34:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:34:26,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 135 [2021-11-09 08:34:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:26,872 INFO L225 Difference]: With dead ends: 10541 [2021-11-09 08:34:26,872 INFO L226 Difference]: Without dead ends: 7111 [2021-11-09 08:34:26,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:34:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7111 states. [2021-11-09 08:34:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7111 to 3678. [2021-11-09 08:34:27,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3591 states have (on average 1.2979671400724033) internal successors, (4661), 3677 states have internal predecessors, (4661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 4661 transitions. [2021-11-09 08:34:27,104 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 4661 transitions. Word has length 135 [2021-11-09 08:34:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:27,104 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 4661 transitions. [2021-11-09 08:34:27,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 4661 transitions. [2021-11-09 08:34:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 08:34:27,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:27,107 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:27,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:27,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-09 08:34:27,323 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:27,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1808388522, now seen corresponding path program 1 times [2021-11-09 08:34:27,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:27,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490255017] [2021-11-09 08:34:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:27,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:27,463 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:27,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007164819] [2021-11-09 08:34:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:27,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:27,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:27,465 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:27,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 08:34:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:28,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:34:28,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:29,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:29,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490255017] [2021-11-09 08:34:29,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:29,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007164819] [2021-11-09 08:34:29,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007164819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:29,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:29,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:34:29,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306312496] [2021-11-09 08:34:29,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:34:29,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:29,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:34:29,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:34:29,330 INFO L87 Difference]: Start difference. First operand 3678 states and 4661 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:32,206 INFO L93 Difference]: Finished difference Result 7108 states and 9010 transitions. [2021-11-09 08:34:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:34:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 135 [2021-11-09 08:34:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:32,215 INFO L225 Difference]: With dead ends: 7108 [2021-11-09 08:34:32,216 INFO L226 Difference]: Without dead ends: 3600 [2021-11-09 08:34:32,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:34:32,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2021-11-09 08:34:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3600. [2021-11-09 08:34:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3513 states have (on average 1.2983205237688584) internal successors, (4561), 3599 states have internal predecessors, (4561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 4561 transitions. [2021-11-09 08:34:32,495 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 4561 transitions. Word has length 135 [2021-11-09 08:34:32,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:32,496 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 4561 transitions. [2021-11-09 08:34:32,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:32,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 4561 transitions. [2021-11-09 08:34:32,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 08:34:32,498 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:32,499 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:32,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:32,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:34:32,713 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:32,714 INFO L85 PathProgramCache]: Analyzing trace with hash 192259578, now seen corresponding path program 1 times [2021-11-09 08:34:32,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:32,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056269608] [2021-11-09 08:34:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:32,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:32,844 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:32,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230445300] [2021-11-09 08:34:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:32,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:32,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:32,846 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:32,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 08:34:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:34,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 3207 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 08:34:34,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:34,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:34,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056269608] [2021-11-09 08:34:34,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:34,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230445300] [2021-11-09 08:34:34,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230445300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:34,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:34,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:34:34,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729944426] [2021-11-09 08:34:34,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:34:34,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:34,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:34:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:34:34,859 INFO L87 Difference]: Start difference. First operand 3600 states and 4561 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:34:36,497 INFO L93 Difference]: Finished difference Result 10287 states and 12993 transitions. [2021-11-09 08:34:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:34:36,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 138 [2021-11-09 08:34:36,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:34:36,518 INFO L225 Difference]: With dead ends: 10287 [2021-11-09 08:34:36,519 INFO L226 Difference]: Without dead ends: 6769 [2021-11-09 08:34:36,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:34:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6769 states. [2021-11-09 08:34:36,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6769 to 3714. [2021-11-09 08:34:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3627 states have (on average 1.2994210090984284) internal successors, (4713), 3713 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:36,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 4713 transitions. [2021-11-09 08:34:36,756 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 4713 transitions. Word has length 138 [2021-11-09 08:34:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:34:36,757 INFO L470 AbstractCegarLoop]: Abstraction has 3714 states and 4713 transitions. [2021-11-09 08:34:36,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:34:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 4713 transitions. [2021-11-09 08:34:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 08:34:36,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:34:36,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:34:36,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:34:36,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:36,982 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:34:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:34:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash 917748154, now seen corresponding path program 1 times [2021-11-09 08:34:36,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:34:36,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589948270] [2021-11-09 08:34:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:36,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:34:37,124 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:34:37,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871411827] [2021-11-09 08:34:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:34:37,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:34:37,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:34:37,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:34:37,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 08:34:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:34:38,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 3217 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:34:38,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:34:39,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:34:39,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:34:39,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589948270] [2021-11-09 08:34:39,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:34:39,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871411827] [2021-11-09 08:34:39,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871411827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:34:39,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:34:39,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:34:39,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114995698] [2021-11-09 08:34:39,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:34:39,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:34:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:34:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:34:39,594 INFO L87 Difference]: Start difference. First operand 3714 states and 4713 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:35:17,280 INFO L93 Difference]: Finished difference Result 10391 states and 13155 transitions. [2021-11-09 08:35:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:35:17,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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 138 [2021-11-09 08:35:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:35:17,308 INFO L225 Difference]: With dead ends: 10391 [2021-11-09 08:35:17,309 INFO L226 Difference]: Without dead ends: 6756 [2021-11-09 08:35:17,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:35:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2021-11-09 08:35:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 3790. [2021-11-09 08:35:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 3703 states have (on average 1.2984066972724817) internal successors, (4808), 3789 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 4808 transitions. [2021-11-09 08:35:17,586 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 4808 transitions. Word has length 138 [2021-11-09 08:35:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:35:17,586 INFO L470 AbstractCegarLoop]: Abstraction has 3790 states and 4808 transitions. [2021-11-09 08:35:17,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 4808 transitions. [2021-11-09 08:35:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 08:35:17,589 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:35:17,589 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:35:17,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:35:17,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:35:17,815 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:35:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash -8145414, now seen corresponding path program 1 times [2021-11-09 08:35:17,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:17,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79163579] [2021-11-09 08:35:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:17,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:17,940 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:35:17,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524760370] [2021-11-09 08:35:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:17,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:35:17,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:35:17,942 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:35:17,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 08:35:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:19,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 3211 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:35:19,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:35:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:35:19,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:19,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79163579] [2021-11-09 08:35:19,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:35:19,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524760370] [2021-11-09 08:35:19,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524760370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:35:19,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:19,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 08:35:19,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018685604] [2021-11-09 08:35:19,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:35:19,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:35:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:35:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:35:19,864 INFO L87 Difference]: Start difference. First operand 3790 states and 4808 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:35:20,791 INFO L93 Difference]: Finished difference Result 7649 states and 9702 transitions. [2021-11-09 08:35:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:35:20,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 138 [2021-11-09 08:35:20,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:35:20,798 INFO L225 Difference]: With dead ends: 7649 [2021-11-09 08:35:20,798 INFO L226 Difference]: Without dead ends: 3942 [2021-11-09 08:35:20,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:35:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2021-11-09 08:35:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3866. [2021-11-09 08:35:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3779 states have (on average 1.2924053982535062) internal successors, (4884), 3865 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 4884 transitions. [2021-11-09 08:35:21,064 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 4884 transitions. Word has length 138 [2021-11-09 08:35:21,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:35:21,067 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 4884 transitions. [2021-11-09 08:35:21,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:35:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 4884 transitions. [2021-11-09 08:35:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 08:35:21,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:35:21,070 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:35:21,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:35:21,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 08:35:21,295 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:35:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:35:21,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2002402758, now seen corresponding path program 1 times [2021-11-09 08:35:21,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:35:21,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389770683] [2021-11-09 08:35:21,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:21,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:35:21,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 08:35:21,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433543847] [2021-11-09 08:35:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:35:21,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:35:21,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:35:21,421 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:35:21,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-09 08:35:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:35:23,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 142 conjunts are in the unsatisfiable core [2021-11-09 08:35:23,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:35:33,431 WARN L207 SmtUtils]: Spent 7.90 s on a formula simplification. DAG size of input: 37 DAG size of output: 13 [2021-11-09 08:35:33,432 INFO L354 Elim1Store]: treesize reduction 62, result has 23.5 percent of original size [2021-11-09 08:35:33,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 431 treesize of output 441 [2021-11-09 08:35:42,457 WARN L207 SmtUtils]: Spent 9.00 s on a formula simplification. DAG size of input: 37 DAG size of output: 13 [2021-11-09 08:35:42,458 INFO L354 Elim1Store]: treesize reduction 62, result has 23.5 percent of original size [2021-11-09 08:35:42,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 526 treesize of output 536 [2021-11-09 08:35:42,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:35:42,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389770683] [2021-11-09 08:35:42,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 08:35:42,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433543847] [2021-11-09 08:35:42,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-09 08:35:42,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:35:42,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-09 08:35:42,517 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-09 08:35:42,517 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-09 08:35:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,541 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,541 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,541 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,541 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,542 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,542 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,542 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,542 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,551 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,552 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:35:42,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:35:42,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:35:42,779 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:35:42,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:35:42,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:35:42 BoogieIcfgContainer [2021-11-09 08:35:42,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:35:42,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:35:42,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:35:42,845 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:35:42,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:33:32" (3/4) ... [2021-11-09 08:35:42,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 08:35:42,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:35:42,852 INFO L168 Benchmark]: Toolchain (without parser) took 160388.37 ms. Allocated memory was 127.9 MB in the beginning and 1.0 GB in the end (delta: 874.5 MB). Free memory was 84.2 MB in the beginning and 264.4 MB in the end (delta: -180.1 MB). Peak memory consumption was 693.0 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,852 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 101.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:35:42,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2822.34 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 84.0 MB in the beginning and 90.6 MB in the end (delta: -6.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 733.26 ms. Allocated memory is still 155.2 MB. Free memory was 90.6 MB in the beginning and 61.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 70.2 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,855 INFO L168 Benchmark]: Boogie Preprocessor took 834.82 ms. Allocated memory was 155.2 MB in the beginning and 299.9 MB in the end (delta: 144.7 MB). Free memory was 61.1 MB in the beginning and 153.4 MB in the end (delta: -92.3 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,856 INFO L168 Benchmark]: RCFGBuilder took 25464.74 ms. Allocated memory was 299.9 MB in the beginning and 790.6 MB in the end (delta: 490.7 MB). Free memory was 153.4 MB in the beginning and 600.4 MB in the end (delta: -447.0 MB). Peak memory consumption was 391.9 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,856 INFO L168 Benchmark]: TraceAbstraction took 130517.74 ms. Allocated memory was 790.6 MB in the beginning and 1.0 GB in the end (delta: 211.8 MB). Free memory was 599.3 MB in the beginning and 265.4 MB in the end (delta: 333.9 MB). Peak memory consumption was 546.8 MB. Max. memory is 16.1 GB. [2021-11-09 08:35:42,857 INFO L168 Benchmark]: Witness Printer took 6.39 ms. Allocated memory is still 1.0 GB. Free memory was 265.4 MB in the beginning and 264.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:35:42,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 101.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2822.34 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 84.0 MB in the beginning and 90.6 MB in the end (delta: -6.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 733.26 ms. Allocated memory is still 155.2 MB. Free memory was 90.6 MB in the beginning and 61.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 70.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 834.82 ms. Allocated memory was 155.2 MB in the beginning and 299.9 MB in the end (delta: 144.7 MB). Free memory was 61.1 MB in the beginning and 153.4 MB in the end (delta: -92.3 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 25464.74 ms. Allocated memory was 299.9 MB in the beginning and 790.6 MB in the end (delta: 490.7 MB). Free memory was 153.4 MB in the beginning and 600.4 MB in the end (delta: -447.0 MB). Peak memory consumption was 391.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 130517.74 ms. Allocated memory was 790.6 MB in the beginning and 1.0 GB in the end (delta: 211.8 MB). Free memory was 599.3 MB in the beginning and 265.4 MB in the end (delta: 333.9 MB). Peak memory consumption was 546.8 MB. Max. memory is 16.1 GB. * Witness Printer took 6.39 ms. Allocated memory is still 1.0 GB. Free memory was 265.4 MB in the beginning and 264.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7788. Possible FailurePath: [L6915-L6920] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7360] static __thread int tl_last_error = 0; [L7787-L7935] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7938-L7941] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7943-L7952] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7954-L7957] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7959-L7963] static _Bool s_common_library_initialized = 0 ; [L8450] struct aws_priority_queue queue; [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6789-L6791] _Bool container_is_bounded = aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size); [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6797-L6799] _Bool backpointers_list_is_bounded = aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)); [L6800] return container_is_bounded && backpointers_list_is_bounded; [L211] COND FALSE !(!cond) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] list->data [L211] COND FALSE !(!cond) [L6939] return &s_can_fail_allocator_static; [L6747] list->alloc = can_fail_allocator() [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] list->data [L211] COND FALSE !(!cond) [L6939] return &s_can_fail_allocator_static; [L6747] list->alloc = can_fail_allocator() [L6806] queue->pred = nondet_compare [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8220] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8458] EXPR queue.container.item_size [L261] return __VERIFIER_nondet_bool(); [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L211] COND FALSE !(!cond) [L6935] return malloc(size); [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L6949-L6951] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L8458] void *item = can_fail_malloc(queue.container.item_size); [L8460] queue.backpointers.data [L8460] COND FALSE !(queue.backpointers.data) [L8476] struct aws_priority_queue old_queue = queue; [L8479] item && ((((queue.container.item_size)) == 0) || ((item))) [L8479] EXPR queue.container.item_size [L8479] item && ((((queue.container.item_size)) == 0) || ((item))) [L211] COND FALSE !(!cond) [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8220] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8428] item && ((((queue->container.item_size)) == 0) || ((item))) [L8428] EXPR queue->container.item_size [L8428] item && ((((queue->container.item_size)) == 0) || ((item))) [L211] COND FALSE !(!cond) [L3169] EXPR list->length [L3169] !list->length || list->data [L211] COND FALSE !(!cond) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L3171] EXPR list->length [L3171] size_t len = list->length; [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 233]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3341 locations, 87 error locations. Started 1 CEGAR loops. OverallTime: 130.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 81.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 61936 SDtfs, 76833 SDslu, 152202 SDs, 0 SdLazy, 14098 SolverSat, 941 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 68.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1276 GetRequests, 1207 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3866occurred in iteration=13, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 25471 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.0s SsaConstructionTime, 9.5s SatisfiabilityAnalysisTime, 26.4s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1554 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1403 ConstructedInterpolants, 0 QuantifiedInterpolants, 2223 SizeOfPredicates, 44 NumberOfNonLiveVariables, 34017 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-09 08:35:43,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:35:45,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:35:45,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:35:45,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:35:45,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:35:45,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:35:45,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:35:45,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:35:45,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:35:45,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:35:45,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:35:45,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:35:45,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:35:45,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:35:45,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:35:45,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:35:45,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:35:45,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:35:45,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:35:45,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:35:45,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:35:45,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:35:45,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:35:45,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:35:45,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:35:45,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:35:45,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:35:45,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:35:45,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:35:45,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:35:45,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:35:45,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:35:45,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:35:45,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:35:45,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:35:45,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:35:45,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:35:45,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:35:45,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:35:45,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:35:45,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:35:46,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-09 08:35:46,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:35:46,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:35:46,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:35:46,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:35:46,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:35:46,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:35:46,057 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:35:46,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:35:46,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:35:46,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:35:46,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:35:46,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:35:46,059 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 08:35:46,059 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 08:35:46,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:35:46,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:35:46,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:35:46,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:35:46,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:35:46,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:35:46,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:35:46,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:35:46,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:35:46,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:35:46,063 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 08:35:46,063 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 08:35:46,063 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:35:46,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:35:46,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:35:46,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:35:46,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 08:35:46,065 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-09 08:35:46,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:35:46,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:35:46,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:35:46,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:35:46,556 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:35:46,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-09 08:35:46,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/cea1ad84b/aebcb6bcf13f44a09ffdd5e2dabaddc4/FLAG5a9cf1416 [2021-11-09 08:35:47,946 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:35:47,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-09 08:35:48,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/cea1ad84b/aebcb6bcf13f44a09ffdd5e2dabaddc4/FLAG5a9cf1416 [2021-11-09 08:35:48,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/data/cea1ad84b/aebcb6bcf13f44a09ffdd5e2dabaddc4 [2021-11-09 08:35:48,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:35:48,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:35:48,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:35:48,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:35:48,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:35:48,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:35:48" (1/1) ... [2021-11-09 08:35:48,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509130a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:48, skipping insertion in model container [2021-11-09 08:35:48,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:35:48" (1/1) ... [2021-11-09 08:35:48,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:35:48,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:35:48,689 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-09 08:35:48,697 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-09 08:35:48,725 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:35:48,731 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:35:49,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:49,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:35:50,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:35:50,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:35:50,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:35:50,498 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:35:50,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:35:50,500 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:35:50,501 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:35:50,502 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:35:50,502 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:35:50,757 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:35:50,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:50,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:35:51,038 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:35:51,056 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-09 08:35:51,067 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_1a52d160-75f7-4a83-92d6-20bf1b6c2667/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-09 08:35:51,070 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-09 08:35:51,075 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-09 08:35:51,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-09 08:35:51,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-09 08:35:51,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-09 08:35:51,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-09 08:35:51,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-09 08:35:51,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-09 08:35:51,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-09 08:35:51,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-09 08:35:51,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-09 08:35:51,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-09 08:35:51,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-09 08:35:51,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-09 08:35:51,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:35:52,035 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:35:52,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52 WrapperNode [2021-11-09 08:35:52,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:35:52,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:35:52,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:35:52,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:35:52,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:52,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:52,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:35:53,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:35:53,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:35:53,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:35:53,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:35:53,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:35:53,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:35:53,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:35:53,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (1/1) ... [2021-11-09 08:35:53,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:35:53,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:35:54,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:35:54,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:35:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:35:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 08:35:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:35:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-09 08:35:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-09 08:35:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 08:35:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:35:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-09 08:35:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:35:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-09 08:35:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:35:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-09 08:36:48,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:36:48,498 INFO L299 CfgBuilder]: Removed 2646 assume(true) statements. [2021-11-09 08:36:48,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:48 BoogieIcfgContainer [2021-11-09 08:36:48,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:36:48,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:36:48,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:36:48,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:36:48,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:35:48" (1/3) ... [2021-11-09 08:36:48,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:48, skipping insertion in model container [2021-11-09 08:36:48,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:35:52" (2/3) ... [2021-11-09 08:36:48,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:36:48, skipping insertion in model container [2021-11-09 08:36:48,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:36:48" (3/3) ... [2021-11-09 08:36:48,515 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2021-11-09 08:36:48,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:36:48,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-09 08:36:48,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:36:48,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:36:48,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-09 08:36:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:36:48,720 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:48,721 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] [2021-11-09 08:36:48,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:36:48,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash 462763660, now seen corresponding path program 1 times [2021-11-09 08:36:48,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:36:48,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375216409] [2021-11-09 08:36:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:48,754 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:36:48,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:36:48,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:36:48,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 08:36:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:36:53,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 08:36:53,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:36:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:54,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:36:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:36:54,354 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:36:54,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375216409] [2021-11-09 08:36:54,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375216409] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:36:54,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:36:54,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 08:36:54,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667472047] [2021-11-09 08:36:54,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:36:54,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:36:54,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:36:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:54,400 INFO L87 Difference]: Start difference. First operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:54,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:36:54,629 INFO L93 Difference]: Finished difference Result 6676 states and 9247 transitions. [2021-11-09 08:36:54,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:36:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:36:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:36:54,682 INFO L225 Difference]: With dead ends: 6676 [2021-11-09 08:36:54,682 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:36:54,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:36:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:36:54,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:36:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327485380116959) internal successors, (4313), 3335 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4313 transitions. [2021-11-09 08:36:54,930 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4313 transitions. Word has length 55 [2021-11-09 08:36:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:36:54,931 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4313 transitions. [2021-11-09 08:36:54,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:36:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4313 transitions. [2021-11-09 08:36:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:36:54,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:36:54,944 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] [2021-11-09 08:36:55,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:36:55,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:36:55,146 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:36:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:36:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash -349284918, now seen corresponding path program 1 times [2021-11-09 08:36:55,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:36:55,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605808248] [2021-11-09 08:36:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:36:55,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:36:55,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:36:55,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:36:55,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 08:36:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:36:59,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:36:59,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:37:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:00,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:37:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:00,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:37:00,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605808248] [2021-11-09 08:37:00,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605808248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:37:00,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:37:00,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-09 08:37:00,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762952776] [2021-11-09 08:37:00,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:37:00,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:37:00,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:37:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:37:00,645 INFO L87 Difference]: Start difference. First operand 3336 states and 4313 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:37:03,443 INFO L93 Difference]: Finished difference Result 6592 states and 8521 transitions. [2021-11-09 08:37:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:37:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:37:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:37:03,468 INFO L225 Difference]: With dead ends: 6592 [2021-11-09 08:37:03,468 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:37:03,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:37:03,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:37:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:37:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327177593105571) internal successors, (4312), 3335 states have internal predecessors, (4312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4312 transitions. [2021-11-09 08:37:03,592 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4312 transitions. Word has length 55 [2021-11-09 08:37:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:37:03,593 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4312 transitions. [2021-11-09 08:37:03,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4312 transitions. [2021-11-09 08:37:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-09 08:37:03,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:37:03,597 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 08:37:03,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:37:03,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:37:03,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:37:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:37:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1031328699, now seen corresponding path program 1 times [2021-11-09 08:37:03,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:37:03,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179272122] [2021-11-09 08:37:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:37:03,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:37:03,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:37:03,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:37:03,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-09 08:37:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:37:08,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:37:08,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:37:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:09,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:37:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:09,612 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:37:09,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179272122] [2021-11-09 08:37:09,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179272122] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:37:09,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:37:09,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-09 08:37:09,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355882401] [2021-11-09 08:37:09,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:37:09,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:37:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:37:09,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:37:09,615 INFO L87 Difference]: Start difference. First operand 3336 states and 4312 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:37:25,467 INFO L93 Difference]: Finished difference Result 9049 states and 11599 transitions. [2021-11-09 08:37:25,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:37:25,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 08:37:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:37:25,506 INFO L225 Difference]: With dead ends: 9049 [2021-11-09 08:37:25,507 INFO L226 Difference]: Without dead ends: 5761 [2021-11-09 08:37:25,513 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:37:25,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5761 states. [2021-11-09 08:37:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5761 to 3336. [2021-11-09 08:37:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3268698060941828) internal successors, (4311), 3335 states have internal predecessors, (4311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4311 transitions. [2021-11-09 08:37:25,678 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4311 transitions. Word has length 59 [2021-11-09 08:37:25,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:37:25,679 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4311 transitions. [2021-11-09 08:37:25,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4311 transitions. [2021-11-09 08:37:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-09 08:37:25,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:37:25,682 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:37:25,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:37:25,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:37:25,907 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:37:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:37:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash -321488865, now seen corresponding path program 1 times [2021-11-09 08:37:25,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:37:25,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998057043] [2021-11-09 08:37:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:37:25,921 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:37:25,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:37:25,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:37:25,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-09 08:37:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:37:30,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:37:30,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:37:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:31,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:37:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:31,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:37:31,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998057043] [2021-11-09 08:37:31,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998057043] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:37:31,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:37:31,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-09 08:37:31,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457428346] [2021-11-09 08:37:31,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:37:31,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:37:31,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:37:31,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:37:31,974 INFO L87 Difference]: Start difference. First operand 3336 states and 4311 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:37:35,683 INFO L93 Difference]: Finished difference Result 6593 states and 8520 transitions. [2021-11-09 08:37:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:37:35,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-09 08:37:35,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:37:35,709 INFO L225 Difference]: With dead ends: 6593 [2021-11-09 08:37:35,709 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:37:35,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:37:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:37:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:37:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3265620190827947) internal successors, (4310), 3335 states have internal predecessors, (4310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4310 transitions. [2021-11-09 08:37:35,841 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4310 transitions. Word has length 67 [2021-11-09 08:37:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:37:35,842 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4310 transitions. [2021-11-09 08:37:35,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4310 transitions. [2021-11-09 08:37:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 08:37:35,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:37:35,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:37:35,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:37:36,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:37:36,050 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:37:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:37:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1460829938, now seen corresponding path program 1 times [2021-11-09 08:37:36,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:37:36,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72944865] [2021-11-09 08:37:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:37:36,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:37:36,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:37:36,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:37:36,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-09 08:37:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:37:41,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:37:41,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:37:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:41,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:37:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:42,066 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:37:42,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72944865] [2021-11-09 08:37:42,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72944865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:37:42,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:37:42,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-09 08:37:42,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424136646] [2021-11-09 08:37:42,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:37:42,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:37:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:37:42,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:37:42,069 INFO L87 Difference]: Start difference. First operand 3336 states and 4310 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:37:53,586 INFO L93 Difference]: Finished difference Result 6609 states and 8542 transitions. [2021-11-09 08:37:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:37:53,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2021-11-09 08:37:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:37:53,608 INFO L225 Difference]: With dead ends: 6609 [2021-11-09 08:37:53,608 INFO L226 Difference]: Without dead ends: 3336 [2021-11-09 08:37:53,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:37:53,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-09 08:37:53,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-09 08:37:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3262542320714066) internal successors, (4309), 3335 states have internal predecessors, (4309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4309 transitions. [2021-11-09 08:37:53,727 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4309 transitions. Word has length 79 [2021-11-09 08:37:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:37:53,727 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4309 transitions. [2021-11-09 08:37:53,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:37:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4309 transitions. [2021-11-09 08:37:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 08:37:53,730 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:37:53,730 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:37:53,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:37:53,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:37:53,950 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:37:53,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:37:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1730269398, now seen corresponding path program 1 times [2021-11-09 08:37:53,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:37:53,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104094975] [2021-11-09 08:37:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:37:53,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:37:53,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:37:53,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:37:53,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-09 08:37:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:37:59,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:37:59,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:37:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:37:59,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:38:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:00,059 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:38:00,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104094975] [2021-11-09 08:38:00,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104094975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:38:00,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:38:00,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-09 08:38:00,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113235603] [2021-11-09 08:38:00,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:38:00,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:38:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:38:00,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:38:00,061 INFO L87 Difference]: Start difference. First operand 3336 states and 4309 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:02,611 INFO L93 Difference]: Finished difference Result 9539 states and 12277 transitions. [2021-11-09 08:38:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:38:02,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 87 [2021-11-09 08:38:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:38:02,646 INFO L225 Difference]: With dead ends: 9539 [2021-11-09 08:38:02,646 INFO L226 Difference]: Without dead ends: 6281 [2021-11-09 08:38:02,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:38:02,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-11-09 08:38:02,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 3450. [2021-11-09 08:38:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 3363 states have (on average 1.326494201605709) internal successors, (4461), 3449 states have internal predecessors, (4461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4461 transitions. [2021-11-09 08:38:02,812 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4461 transitions. Word has length 87 [2021-11-09 08:38:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:38:02,815 INFO L470 AbstractCegarLoop]: Abstraction has 3450 states and 4461 transitions. [2021-11-09 08:38:02,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:02,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4461 transitions. [2021-11-09 08:38:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 08:38:02,821 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:38:02,822 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:38:02,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:03,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:38:03,035 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:38:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash -832876120, now seen corresponding path program 1 times [2021-11-09 08:38:03,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:38:03,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051287156] [2021-11-09 08:38:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:03,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:38:03,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:38:03,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:38:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-09 08:38:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:08,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:38:08,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:09,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:38:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:09,964 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:38:09,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051287156] [2021-11-09 08:38:09,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051287156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:38:09,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:38:09,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-09 08:38:09,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964926102] [2021-11-09 08:38:09,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:38:09,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:38:09,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:38:09,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:38:09,967 INFO L87 Difference]: Start difference. First operand 3450 states and 4461 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:39:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:39:47,348 INFO L93 Difference]: Finished difference Result 9519 states and 12236 transitions. [2021-11-09 08:39:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:39:47,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 87 [2021-11-09 08:39:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:39:47,383 INFO L225 Difference]: With dead ends: 9519 [2021-11-09 08:39:47,383 INFO L226 Difference]: Without dead ends: 6144 [2021-11-09 08:39:47,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:39:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2021-11-09 08:39:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 3450. [2021-11-09 08:39:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 3363 states have (on average 1.320844484091585) internal successors, (4442), 3449 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:39:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4442 transitions. [2021-11-09 08:39:47,518 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4442 transitions. Word has length 87 [2021-11-09 08:39:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:39:47,519 INFO L470 AbstractCegarLoop]: Abstraction has 3450 states and 4442 transitions. [2021-11-09 08:39:47,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:39:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4442 transitions. [2021-11-09 08:39:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 08:39:47,520 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:39:47,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:39:47,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:39:47,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:39:47,735 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:39:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:39:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash -409229398, now seen corresponding path program 1 times [2021-11-09 08:39:47,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:39:47,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386879634] [2021-11-09 08:39:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:39:47,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:39:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:39:47,743 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:39:47,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-09 08:39:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:39:53,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:39:53,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:39:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:39:53,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:39:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:39:54,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:39:54,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386879634] [2021-11-09 08:39:54,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386879634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:39:54,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:39:54,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-09 08:39:54,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143225019] [2021-11-09 08:39:54,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:39:54,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:39:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:39:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:39:54,427 INFO L87 Difference]: Start difference. First operand 3450 states and 4442 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:42:22,756 INFO L93 Difference]: Finished difference Result 9538 states and 12217 transitions. [2021-11-09 08:42:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:42:22,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 87 [2021-11-09 08:42:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:42:22,773 INFO L225 Difference]: With dead ends: 9538 [2021-11-09 08:42:22,773 INFO L226 Difference]: Without dead ends: 6163 [2021-11-09 08:42:22,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:42:22,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6163 states. [2021-11-09 08:42:22,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6163 to 3488. [2021-11-09 08:42:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3488 states, 3401 states have (on average 1.3116730373419583) internal successors, (4461), 3487 states have internal predecessors, (4461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 4461 transitions. [2021-11-09 08:42:22,891 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 4461 transitions. Word has length 87 [2021-11-09 08:42:22,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:42:22,892 INFO L470 AbstractCegarLoop]: Abstraction has 3488 states and 4461 transitions. [2021-11-09 08:42:22,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:42:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 4461 transitions. [2021-11-09 08:42:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 08:42:22,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:42:22,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:22,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:42:23,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:42:23,119 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:42:23,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:23,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2040370732, now seen corresponding path program 1 times [2021-11-09 08:42:23,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:42:23,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547088873] [2021-11-09 08:42:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:23,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:42:23,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:42:23,124 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:42:23,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-09 08:42:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:27,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 08:42:27,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:42:29,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-09 08:42:29,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-09 08:42:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:29,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:42:32,943 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 08:42:32,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-09 08:42:33,001 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-09 08:42:33,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-09 08:42:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:42:33,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:42:33,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547088873] [2021-11-09 08:42:33,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547088873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:33,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:33,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-09 08:42:33,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358299600] [2021-11-09 08:42:33,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 08:42:33,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:42:33,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:42:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:42:33,591 INFO L87 Difference]: Start difference. First operand 3488 states and 4461 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:07,356 INFO L93 Difference]: Finished difference Result 14473 states and 18398 transitions. [2021-11-09 08:45:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:45:07,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 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 87 [2021-11-09 08:45:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:07,386 INFO L225 Difference]: With dead ends: 14473 [2021-11-09 08:45:07,387 INFO L226 Difference]: Without dead ends: 11100 [2021-11-09 08:45:07,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:45:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11100 states. [2021-11-09 08:45:07,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11100 to 3501. [2021-11-09 08:45:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 3414 states have (on average 1.310779144698301) internal successors, (4475), 3500 states have internal predecessors, (4475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4475 transitions. [2021-11-09 08:45:07,546 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4475 transitions. Word has length 87 [2021-11-09 08:45:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:07,547 INFO L470 AbstractCegarLoop]: Abstraction has 3501 states and 4475 transitions. [2021-11-09 08:45:07,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:07,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4475 transitions. [2021-11-09 08:45:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-09 08:45:07,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:07,549 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:07,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:07,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:45:07,761 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:45:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash 156640934, now seen corresponding path program 1 times [2021-11-09 08:45:07,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:45:07,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690762785] [2021-11-09 08:45:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:07,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:45:07,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:45:07,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:45:07,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-09 08:45:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:12,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:45:12,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:13,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:45:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:13,735 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:45:13,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690762785] [2021-11-09 08:45:13,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690762785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:13,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-09 08:45:13,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315342441] [2021-11-09 08:45:13,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:45:13,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:45:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:45:13,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:45:13,738 INFO L87 Difference]: Start difference. First operand 3501 states and 4475 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:16,278 INFO L93 Difference]: Finished difference Result 6911 states and 8838 transitions. [2021-11-09 08:45:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:45:16,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2021-11-09 08:45:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:16,291 INFO L225 Difference]: With dead ends: 6911 [2021-11-09 08:45:16,291 INFO L226 Difference]: Without dead ends: 3540 [2021-11-09 08:45:16,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:45:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2021-11-09 08:45:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 3525. [2021-11-09 08:45:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3438 states have (on average 1.3100639906922629) internal successors, (4504), 3524 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 4504 transitions. [2021-11-09 08:45:16,394 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 4504 transitions. Word has length 88 [2021-11-09 08:45:16,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:16,395 INFO L470 AbstractCegarLoop]: Abstraction has 3525 states and 4504 transitions. [2021-11-09 08:45:16,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 4504 transitions. [2021-11-09 08:45:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-09 08:45:16,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:16,397 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:16,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:16,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:45:16,619 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:45:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:16,620 INFO L85 PathProgramCache]: Analyzing trace with hash 297189544, now seen corresponding path program 1 times [2021-11-09 08:45:16,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:45:16,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862495991] [2021-11-09 08:45:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:16,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:45:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:45:16,624 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:45:16,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-09 08:45:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:22,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:45:22,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:22,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:45:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:22,839 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:45:22,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862495991] [2021-11-09 08:45:22,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862495991] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:45:22,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:45:22,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-09 08:45:22,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170793196] [2021-11-09 08:45:22,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:45:22,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:45:22,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:45:22,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:45:22,841 INFO L87 Difference]: Start difference. First operand 3525 states and 4504 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:27,151 INFO L93 Difference]: Finished difference Result 6908 states and 8834 transitions. [2021-11-09 08:45:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:45:27,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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 88 [2021-11-09 08:45:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:27,160 INFO L225 Difference]: With dead ends: 6908 [2021-11-09 08:45:27,160 INFO L226 Difference]: Without dead ends: 3507 [2021-11-09 08:45:27,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:45:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2021-11-09 08:45:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3501. [2021-11-09 08:45:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 3414 states have (on average 1.309900410076157) internal successors, (4472), 3500 states have internal predecessors, (4472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4472 transitions. [2021-11-09 08:45:27,260 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4472 transitions. Word has length 88 [2021-11-09 08:45:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:27,260 INFO L470 AbstractCegarLoop]: Abstraction has 3501 states and 4472 transitions. [2021-11-09 08:45:27,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4472 transitions. [2021-11-09 08:45:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-09 08:45:27,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:27,262 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:45:27,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:27,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:45:27,479 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-09 08:45:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2142844222, now seen corresponding path program 1 times [2021-11-09 08:45:27,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:45:27,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380103186] [2021-11-09 08:45:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:27,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:45:27,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:45:27,486 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:45:27,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a52d160-75f7-4a83-92d6-20bf1b6c2667/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process