./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:00:07,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:00:07,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:00:07,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:00:07,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:00:07,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:00:07,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:00:07,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:00:07,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:00:07,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:00:07,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:00:07,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:00:07,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:00:07,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:00:07,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:00:07,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:00:07,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:00:07,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:00:07,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:00:07,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:00:07,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:00:07,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:00:07,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:00:07,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:00:07,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:00:07,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:00:07,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:00:07,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:00:07,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:00:07,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:00:07,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:00:07,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:00:07,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:00:07,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:00:07,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:00:07,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:00:07,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:00:07,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:00:07,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:00:07,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:00:07,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:00:07,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:00:07,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:00:07,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:00:07,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:00:07,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:00:07,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:00:07,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:00:07,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:00:07,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:00:07,614 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:00:07,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:00:07,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:00:07,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:00:07,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:00:07,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:00:07,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:00:07,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:00:07,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:00:07,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:00:07,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:00:07,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:00:07,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:00:07,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:00:07,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:00:07,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:00:07,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:00:07,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:00:07,617 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_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-12-07 01:00:07,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:00:07,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:00:07,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:00:07,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:00:07,809 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:00:07,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-12-07 01:00:07,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/937523d00/210289bc695845c08cff3ee092ae129d/FLAG5514ea350 [2021-12-07 01:00:08,365 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:00:08,365 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-12-07 01:00:08,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/937523d00/210289bc695845c08cff3ee092ae129d/FLAG5514ea350 [2021-12-07 01:00:08,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/937523d00/210289bc695845c08cff3ee092ae129d [2021-12-07 01:00:08,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:00:08,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:00:08,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:00:08,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:00:08,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:00:08,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:08" (1/1) ... [2021-12-07 01:00:08,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a65e963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:08, skipping insertion in model container [2021-12-07 01:00:08,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:08" (1/1) ... [2021-12-07 01:00:08,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:00:08,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:00:08,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-12-07 01:00:08,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-12-07 01:00:09,408 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,409 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,409 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,410 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,411 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,422 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,423 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,424 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,425 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,434 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,435 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,436 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,566 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:00:09,567 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:00:09,568 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:00:09,568 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:00:09,569 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:00:09,570 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:00:09,570 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:00:09,571 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:00:09,571 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:00:09,572 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:00:09,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:00:09,629 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:00:09,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-12-07 01:00:09,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-12-07 01:00:09,670 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,671 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,671 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,672 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,672 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,678 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,679 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,680 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,681 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,681 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,682 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,682 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:09,695 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:00:09,696 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:00:09,697 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:00:09,697 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:00:09,698 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:00:09,699 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:00:09,699 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:00:09,699 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:00:09,700 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:00:09,700 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:00:09,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:00:09,832 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:00:09,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09 WrapperNode [2021-12-07 01:00:09,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:00:09,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:00:09,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:00:09,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:00:09,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,905 INFO L137 Inliner]: procedures = 592, calls = 609, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 85 [2021-12-07 01:00:09,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:00:09,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:00:09,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:00:09,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:00:09,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:00:09,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:00:09,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:00:09,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:00:09,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (1/1) ... [2021-12-07 01:00:09,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:00:09,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:00:09,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:00:09,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:00:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:00:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-07 01:00:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:00:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:00:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2021-12-07 01:00:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2021-12-07 01:00:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-07 01:00:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-07 01:00:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:00:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:00:10,140 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:00:10,141 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:00:10,299 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:00:10,304 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:00:10,304 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:00:10,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:10 BoogieIcfgContainer [2021-12-07 01:00:10,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:00:10,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:00:10,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:00:10,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:00:10,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:00:08" (1/3) ... [2021-12-07 01:00:10,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b963a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:10, skipping insertion in model container [2021-12-07 01:00:10,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:09" (2/3) ... [2021-12-07 01:00:10,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b963a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:10, skipping insertion in model container [2021-12-07 01:00:10,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:10" (3/3) ... [2021-12-07 01:00:10,312 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-12-07 01:00:10,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:00:10,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:00:10,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:00:10,357 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 [2021-12-07 01:00:10,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:00:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-07 01:00:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 01:00:10,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:10,376 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:10,376 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:10,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2021-12-07 01:00:10,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:10,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433462642] [2021-12-07 01:00:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:10,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:00:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:00:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:00:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:00:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:00:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 01:00:10,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:10,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433462642] [2021-12-07 01:00:10,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433462642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:10,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:10,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:00:10,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185670961] [2021-12-07 01:00:10,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:10,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:00:10,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:00:10,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:00:10,742 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:00:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:10,764 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2021-12-07 01:00:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:00:10,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-12-07 01:00:10,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:10,772 INFO L225 Difference]: With dead ends: 117 [2021-12-07 01:00:10,772 INFO L226 Difference]: Without dead ends: 52 [2021-12-07 01:00:10,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:00:10,778 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:10,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:00:10,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-07 01:00:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-07 01:00:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2021-12-07 01:00:10,820 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2021-12-07 01:00:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:10,820 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2021-12-07 01:00:10,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:00:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2021-12-07 01:00:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 01:00:10,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:10,823 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:10,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:00:10,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2021-12-07 01:00:10,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:10,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482584360] [2021-12-07 01:00:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:10,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:00:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:00:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-07 01:00:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:00:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-07 01:00:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:11,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:00:11,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482584360] [2021-12-07 01:00:11,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482584360] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:11,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793213114] [2021-12-07 01:00:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:11,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:00:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:00:11,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:00:11,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:00:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:11,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-07 01:00:11,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-07 01:00:11,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:11,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793213114] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:11,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:00:11,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 14 [2021-12-07 01:00:11,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753116664] [2021-12-07 01:00:11,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 01:00:11,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:00:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 01:00:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:00:11,789 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-07 01:00:11,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:11,954 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2021-12-07 01:00:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:00:11,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 36 [2021-12-07 01:00:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:11,956 INFO L225 Difference]: With dead ends: 58 [2021-12-07 01:00:11,957 INFO L226 Difference]: Without dead ends: 56 [2021-12-07 01:00:11,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:00:11,958 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:11,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 502 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:00:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-12-07 01:00:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-12-07 01:00:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2021-12-07 01:00:11,970 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2021-12-07 01:00:11,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:11,972 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2021-12-07 01:00:11,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-07 01:00:11,972 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2021-12-07 01:00:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-07 01:00:11,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:11,974 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:11,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:12,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:00:12,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:12,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:12,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2021-12-07 01:00:12,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:00:12,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106630051] [2021-12-07 01:00:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:12,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:00:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:00:12,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:00:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:00:12,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:00:12,272 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 01:00:12,272 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:00:12,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:00:12,277 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-07 01:00:12,279 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:00:12,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:00:12 BoogieIcfgContainer [2021-12-07 01:00:12,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:00:12,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:00:12,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:00:12,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:00:12,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:10" (3/4) ... [2021-12-07 01:00:12,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:00:12,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:00:12,307 INFO L158 Benchmark]: Toolchain (without parser) took 3649.29ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 86.6MB in the beginning and 78.2MB in the end (delta: 8.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,307 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 71.3MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:00:12,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1171.54ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 59.6MB in the end (delta: 26.7MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 55.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,308 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,308 INFO L158 Benchmark]: RCFGBuilder took 372.57ms. Allocated memory is still 117.4MB. Free memory was 53.3MB in the beginning and 74.4MB in the end (delta: -21.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,309 INFO L158 Benchmark]: TraceAbstraction took 1995.66ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 74.4MB in the beginning and 79.2MB in the end (delta: -4.8MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2021-12-07 01:00:12,309 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 155.2MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:00:12,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 71.3MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1171.54ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 59.6MB in the end (delta: 26.7MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 55.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.57ms. Allocated memory is still 117.4MB. Free memory was 53.3MB in the beginning and 74.4MB in the end (delta: -21.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1995.66ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 74.4MB in the beginning and 79.2MB in the end (delta: -4.8MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 155.2MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * 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: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5919] CALL memset_override_0_harness() [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L5909] CALL assume_abort_if_not(c == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5909] RET assume_abort_if_not(c == 0) VAL [c=0, d1={6:0}, d2={5:0}] [L5911] unsigned size = __VERIFIER_nondet_uint(); [L5912] CALL assume_abort_if_not((size & 0x7) == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5912] RET assume_abort_if_not((size & 0x7) == 0) VAL [c=0, d1={6:0}, d2={5:0}, size=0] [L5913] CALL assume_abort_if_not(size < 160) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5913] RET assume_abort_if_not(size < 160) VAL [c=0, d1={6:0}, d2={5:0}, size=0] [L5914] CALL memset_impl(d1, c, size) [L5870] CALL assume_abort_if_not((((n) == 0) || (s))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5870] RET assume_abort_if_not((((n) == 0) || (s))) VAL [c=0, n=0, s={6:0}] [L5871] COND FALSE !(n > 0) VAL [c=0, n=0, s={6:0}] [L5876] return s; VAL [c=0, n=0, s={6:0}] [L5914] RET memset_impl(d1, c, size) [L5915] CALL memset_override_0_impl(d2, c, size) [L5881] CALL assume_abort_if_not((((n) == 0) || (dst))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={5:0}, n=0] [L5883] CALL __VERIFIER_assert(c == 0) VAL [\old(cond)=1] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5883] RET __VERIFIER_assert(c == 0) VAL [c=0, dst={5:0}, n=0] [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; VAL [c=0, dst={5:0}, n=0, num_uint64s=0] [L5886] CALL __VERIFIER_assert(rem == 0) VAL [\old(cond)=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L223] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 577 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 449 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 128 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 13 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 124/160 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 [2021-12-07 01:00:12,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:00:13,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:00:13,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:00:13,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:00:13,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:00:13,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:00:13,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:00:13,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:00:13,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:00:13,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:00:13,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:00:13,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:00:13,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:00:13,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:00:13,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:00:13,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:00:13,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:00:13,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:00:13,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:00:13,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:00:13,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:00:13,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:00:13,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:00:13,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:00:13,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:00:13,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:00:13,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:00:13,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:00:13,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:00:13,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:00:13,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:00:13,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:00:13,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:00:13,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:00:13,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:00:13,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:00:13,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:00:13,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:00:13,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:00:13,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:00:13,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:00:13,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-07 01:00:13,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:00:13,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:00:13,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:00:13,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:00:13,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:00:13,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:00:13,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:00:13,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:00:13,916 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:00:13,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 01:00:13,917 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:00:13,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:00:13,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:00:13,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:00:13,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:00:13,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 01:00:13,920 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_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-12-07 01:00:14,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:00:14,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:00:14,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:00:14,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:00:14,158 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:00:14,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-12-07 01:00:14,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/535daeea5/c2d7dc0a4a6347bab8ebb9ba282ed7cf/FLAG028f0ff99 [2021-12-07 01:00:14,738 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:00:14,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-12-07 01:00:14,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/535daeea5/c2d7dc0a4a6347bab8ebb9ba282ed7cf/FLAG028f0ff99 [2021-12-07 01:00:15,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/data/535daeea5/c2d7dc0a4a6347bab8ebb9ba282ed7cf [2021-12-07 01:00:15,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:00:15,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:00:15,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:00:15,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:00:15,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:00:15,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:15" (1/1) ... [2021-12-07 01:00:15,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfd0f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:15, skipping insertion in model container [2021-12-07 01:00:15,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:15" (1/1) ... [2021-12-07 01:00:15,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:00:15,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:00:15,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-12-07 01:00:15,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-12-07 01:00:15,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,879 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,880 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,881 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,893 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,894 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,895 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,895 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,897 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,898 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:15,899 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,029 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:00:16,030 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:00:16,031 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:00:16,032 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:00:16,033 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:00:16,033 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:00:16,034 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:00:16,035 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:00:16,035 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:00:16,036 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:00:16,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:00:16,103 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-07 01:00:16,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:00:16,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-12-07 01:00:16,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-12-07 01:00:16,167 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,168 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,169 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,175 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,176 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,177 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,177 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,178 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,179 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:00:16,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:00:16,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:00:16,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:00:16,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:00:16,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:00:16,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:00:16,205 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:00:16,206 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:00:16,206 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:00:16,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:00:16,233 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:00:16,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-12-07 01:00:16,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-12-07 01:00:16,271 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,272 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,272 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,272 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,273 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,278 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,279 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,280 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,280 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,281 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,281 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,282 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,282 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-07 01:00:16,295 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-07 01:00:16,296 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-07 01:00:16,296 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-07 01:00:16,297 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-07 01:00:16,298 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-07 01:00:16,298 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-07 01:00:16,298 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-07 01:00:16,299 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-07 01:00:16,299 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-07 01:00:16,299 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-07 01:00:16,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:00:16,469 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:00:16,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16 WrapperNode [2021-12-07 01:00:16,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:00:16,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:00:16,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:00:16,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:00:16,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,544 INFO L137 Inliner]: procedures = 611, calls = 609, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 85 [2021-12-07 01:00:16,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:00:16,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:00:16,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:00:16,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:00:16,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:00:16,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:00:16,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:00:16,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:00:16,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (1/1) ... [2021-12-07 01:00:16,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:00:16,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:00:16,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:00:16,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:00:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:00:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 01:00:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-07 01:00:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-07 01:00:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:00:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:00:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:00:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2021-12-07 01:00:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2021-12-07 01:00:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-07 01:00:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-07 01:00:16,760 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:00:16,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:00:16,992 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:00:16,998 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:00:16,998 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:00:16,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:16 BoogieIcfgContainer [2021-12-07 01:00:16,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:00:17,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:00:17,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:00:17,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:00:17,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:00:15" (1/3) ... [2021-12-07 01:00:17,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af247f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:17, skipping insertion in model container [2021-12-07 01:00:17,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:16" (2/3) ... [2021-12-07 01:00:17,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af247f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:17, skipping insertion in model container [2021-12-07 01:00:17,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:16" (3/3) ... [2021-12-07 01:00:17,005 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-12-07 01:00:17,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:00:17,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:00:17,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:00:17,052 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 [2021-12-07 01:00:17,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:00:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-07 01:00:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 01:00:17,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:17,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:17,070 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:17,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2021-12-07 01:00:17,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:17,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323367329] [2021-12-07 01:00:17,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:17,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:17,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:17,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:17,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 01:00:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:17,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 01:00:17,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-07 01:00:17,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:00:17,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:17,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323367329] [2021-12-07 01:00:17,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323367329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:17,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:17,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:00:17,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054674656] [2021-12-07 01:00:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:17,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:00:17,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:17,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:00:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:00:17,290 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 01:00:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:17,310 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2021-12-07 01:00:17,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:00:17,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2021-12-07 01:00:17,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:17,318 INFO L225 Difference]: With dead ends: 117 [2021-12-07 01:00:17,318 INFO L226 Difference]: Without dead ends: 52 [2021-12-07 01:00:17,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:00:17,323 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:17,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:00:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-07 01:00:17,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-07 01:00:17,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2021-12-07 01:00:17,354 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2021-12-07 01:00:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:17,354 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2021-12-07 01:00:17,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 01:00:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2021-12-07 01:00:17,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 01:00:17,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:17,356 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:17,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:17,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:17,558 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:17,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2021-12-07 01:00:17,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:17,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088744706] [2021-12-07 01:00:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:17,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:17,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:17,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:17,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 01:00:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:17,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:00:17,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:17,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:17,964 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:17,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088744706] [2021-12-07 01:00:17,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088744706] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:17,965 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:17,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-12-07 01:00:17,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517300680] [2021-12-07 01:00:17,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:17,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:00:17,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:00:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:00:17,968 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-07 01:00:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:18,101 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2021-12-07 01:00:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:00:18,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 36 [2021-12-07 01:00:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:18,103 INFO L225 Difference]: With dead ends: 58 [2021-12-07 01:00:18,104 INFO L226 Difference]: Without dead ends: 56 [2021-12-07 01:00:18,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:00:18,106 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 46 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:18,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 262 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:00:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-12-07 01:00:18,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-12-07 01:00:18,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:18,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2021-12-07 01:00:18,119 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2021-12-07 01:00:18,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:18,121 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2021-12-07 01:00:18,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-07 01:00:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2021-12-07 01:00:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-07 01:00:18,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:18,123 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:18,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:18,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:18,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2021-12-07 01:00:18,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505785192] [2021-12-07 01:00:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:18,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:18,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:18,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:18,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 01:00:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:18,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:00:18,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:18,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:00:18,861 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:18,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505785192] [2021-12-07 01:00:18,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505785192] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:18,862 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:18,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-12-07 01:00:18,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055846624] [2021-12-07 01:00:18,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:18,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 01:00:18,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:18,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 01:00:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:00:18,864 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-07 01:00:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:19,043 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2021-12-07 01:00:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:00:19,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 42 [2021-12-07 01:00:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:19,044 INFO L225 Difference]: With dead ends: 62 [2021-12-07 01:00:19,044 INFO L226 Difference]: Without dead ends: 60 [2021-12-07 01:00:19,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:00:19,046 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 13 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:19,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 503 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2021-12-07 01:00:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-07 01:00:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-12-07 01:00:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2021-12-07 01:00:19,054 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 42 [2021-12-07 01:00:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:19,054 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2021-12-07 01:00:19,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-07 01:00:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2021-12-07 01:00:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-07 01:00:19,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:19,055 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:19,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:19,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:19,257 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:19,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:19,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2021-12-07 01:00:19,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:19,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498303908] [2021-12-07 01:00:19,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:19,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:19,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:19,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:19,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 01:00:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:19,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:00:19,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-07 01:00:19,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:00:19,517 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:19,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498303908] [2021-12-07 01:00:19,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498303908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:00:19,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:00:19,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:00:19,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779681432] [2021-12-07 01:00:19,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:19,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:00:19,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:19,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:00:19,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:00:19,519 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-07 01:00:19,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:19,614 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2021-12-07 01:00:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:00:19,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2021-12-07 01:00:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:19,615 INFO L225 Difference]: With dead ends: 66 [2021-12-07 01:00:19,615 INFO L226 Difference]: Without dead ends: 64 [2021-12-07 01:00:19,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:00:19,616 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:19,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 256 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:00:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-07 01:00:19,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-07 01:00:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2021-12-07 01:00:19,627 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 51 [2021-12-07 01:00:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:19,627 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2021-12-07 01:00:19,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-07 01:00:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2021-12-07 01:00:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-07 01:00:19,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:19,629 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:19,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-07 01:00:19,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:19,831 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:19,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2021-12-07 01:00:19,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:19,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263263354] [2021-12-07 01:00:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:19,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:19,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:19,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:19,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-07 01:00:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:19,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:00:19,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:00:20,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 01:00:20,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263263354] [2021-12-07 01:00:20,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263263354] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:20,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:00:20,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2021-12-07 01:00:20,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910650180] [2021-12-07 01:00:20,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:20,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:00:20,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:20,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:00:20,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:00:20,234 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-07 01:00:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:20,307 INFO L93 Difference]: Finished difference Result 107 states and 126 transitions. [2021-12-07 01:00:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:00:20,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 68 [2021-12-07 01:00:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:20,309 INFO L225 Difference]: With dead ends: 107 [2021-12-07 01:00:20,309 INFO L226 Difference]: Without dead ends: 79 [2021-12-07 01:00:20,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:00:20,310 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 30 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:20,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:00:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-12-07 01:00:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2021-12-07 01:00:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-12-07 01:00:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2021-12-07 01:00:20,323 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 68 [2021-12-07 01:00:20,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:20,323 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2021-12-07 01:00:20,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-07 01:00:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2021-12-07 01:00:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 01:00:20,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:20,325 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:20,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:20,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:20,527 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1524731977, now seen corresponding path program 1 times [2021-12-07 01:00:20,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896153124] [2021-12-07 01:00:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:20,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:20,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:20,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:20,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-07 01:00:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:20,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 01:00:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 38 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:00:20,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 01:00:21,020 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:21,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896153124] [2021-12-07 01:00:21,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896153124] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:21,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:00:21,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-07 01:00:21,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721818890] [2021-12-07 01:00:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:21,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:00:21,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:00:21,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:00:21,022 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 01:00:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:21,051 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2021-12-07 01:00:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:00:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2021-12-07 01:00:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:21,053 INFO L225 Difference]: With dead ends: 131 [2021-12-07 01:00:21,053 INFO L226 Difference]: Without dead ends: 78 [2021-12-07 01:00:21,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:00:21,055 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:21,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:00:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-07 01:00:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-12-07 01:00:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-12-07 01:00:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2021-12-07 01:00:21,067 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 69 [2021-12-07 01:00:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:21,067 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2021-12-07 01:00:21,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 01:00:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2021-12-07 01:00:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 01:00:21,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:21,070 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:21,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-07 01:00:21,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:21,271 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:21,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:21,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2021-12-07 01:00:21,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:21,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789041128] [2021-12-07 01:00:21,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:21,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:21,275 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:21,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-07 01:00:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:21,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:00:21,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:00:21,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-07 01:00:21,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789041128] [2021-12-07 01:00:21,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789041128] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:21,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:00:21,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2021-12-07 01:00:21,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819251341] [2021-12-07 01:00:21,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:00:21,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:00:21,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:21,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:00:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:00:21,750 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-07 01:00:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:21,835 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2021-12-07 01:00:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:00:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 72 [2021-12-07 01:00:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:21,836 INFO L225 Difference]: With dead ends: 100 [2021-12-07 01:00:21,836 INFO L226 Difference]: Without dead ends: 65 [2021-12-07 01:00:21,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:00:21,837 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:21,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 272 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:00:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-07 01:00:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-07 01:00:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 44 states have internal predecessors, (47), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-12-07 01:00:21,844 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 72 [2021-12-07 01:00:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:21,844 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-12-07 01:00:21,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-07 01:00:21,844 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2021-12-07 01:00:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 01:00:21,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:21,845 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:21,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-07 01:00:22,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:22,047 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1069315495, now seen corresponding path program 1 times [2021-12-07 01:00:22,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:22,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325368954] [2021-12-07 01:00:22,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:22,051 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:22,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:22,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:22,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-07 01:00:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:00:22,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:00:22,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-07 01:00:22,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:22,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325368954] [2021-12-07 01:00:22,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325368954] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:22,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:22,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-12-07 01:00:22,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743930533] [2021-12-07 01:00:22,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:22,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 01:00:22,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:22,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 01:00:22,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:00:22,710 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:22,848 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2021-12-07 01:00:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:00:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 71 [2021-12-07 01:00:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:22,849 INFO L225 Difference]: With dead ends: 122 [2021-12-07 01:00:22,850 INFO L226 Difference]: Without dead ends: 69 [2021-12-07 01:00:22,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:00:22,851 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:22,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 491 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 15 Unchecked, 0.1s Time] [2021-12-07 01:00:22,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-07 01:00:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-07 01:00:22,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2021-12-07 01:00:22,859 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 71 [2021-12-07 01:00:22,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:22,859 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2021-12-07 01:00:22,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 11 states have internal predecessors, (46), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:22,860 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2021-12-07 01:00:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 01:00:22,861 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:22,861 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:22,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-07 01:00:23,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:23,063 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:23,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash 511671837, now seen corresponding path program 2 times [2021-12-07 01:00:23,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:23,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786341098] [2021-12-07 01:00:23,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:00:23,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:23,071 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:23,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-07 01:00:23,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:00:23,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:00:23,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 01:00:23,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:00:23,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-07 01:00:24,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786341098] [2021-12-07 01:00:24,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786341098] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:24,082 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:24,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2021-12-07 01:00:24,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254708035] [2021-12-07 01:00:24,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:24,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-07 01:00:24,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-07 01:00:24,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-12-07 01:00:24,084 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:24,783 INFO L93 Difference]: Finished difference Result 130 states and 149 transitions. [2021-12-07 01:00:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 01:00:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 75 [2021-12-07 01:00:24,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:24,785 INFO L225 Difference]: With dead ends: 130 [2021-12-07 01:00:24,785 INFO L226 Difference]: Without dead ends: 77 [2021-12-07 01:00:24,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-07 01:00:24,786 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 6 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:24,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 507 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2021-12-07 01:00:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-07 01:00:24,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-07 01:00:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.0727272727272728) internal successors, (59), 56 states have internal predecessors, (59), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:00:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2021-12-07 01:00:24,796 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 75 [2021-12-07 01:00:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:24,796 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-12-07 01:00:24,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2021-12-07 01:00:24,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-07 01:00:24,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:24,798 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:24,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-07 01:00:24,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:25,000 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1085153371, now seen corresponding path program 3 times [2021-12-07 01:00:25,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:25,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701610017] [2021-12-07 01:00:25,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 01:00:25,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:25,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:25,007 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:25,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-07 01:00:25,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 01:00:25,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:00:25,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:00:25,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-07 01:00:25,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-07 01:00:25,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:25,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701610017] [2021-12-07 01:00:25,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701610017] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:25,603 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:25,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-12-07 01:00:25,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037687458] [2021-12-07 01:00:25,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:25,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-07 01:00:25,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-07 01:00:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-12-07 01:00:25,604 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:00:26,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:26,416 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2021-12-07 01:00:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:00:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 83 [2021-12-07 01:00:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:26,419 INFO L225 Difference]: With dead ends: 113 [2021-12-07 01:00:26,419 INFO L226 Difference]: Without dead ends: 85 [2021-12-07 01:00:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2021-12-07 01:00:26,420 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:26,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 445 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 111 Invalid, 0 Unknown, 16 Unchecked, 0.6s Time] [2021-12-07 01:00:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-07 01:00:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2021-12-07 01:00:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 60 states have internal predecessors, (64), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-07 01:00:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2021-12-07 01:00:26,426 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 83 [2021-12-07 01:00:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:26,426 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2021-12-07 01:00:26,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 8 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:00:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2021-12-07 01:00:26,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-07 01:00:26,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:26,427 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:26,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-07 01:00:26,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:26,629 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:26,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2075883641, now seen corresponding path program 1 times [2021-12-07 01:00:26,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:26,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328719746] [2021-12-07 01:00:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:00:26,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:26,636 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:26,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-07 01:00:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:00:26,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-07 01:00:26,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-07 01:00:27,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 9 proven. 61 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-07 01:00:28,510 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:28,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328719746] [2021-12-07 01:00:28,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328719746] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:00:28,510 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:28,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-12-07 01:00:28,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992269668] [2021-12-07 01:00:28,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:28,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-07 01:00:28,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:28,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-07 01:00:28,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2021-12-07 01:00:28,512 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:00:28,773 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2021-12-07 01:00:28,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:00:28,774 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 85 [2021-12-07 01:00:28,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:00:28,775 INFO L225 Difference]: With dead ends: 142 [2021-12-07 01:00:28,775 INFO L226 Difference]: Without dead ends: 84 [2021-12-07 01:00:28,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2021-12-07 01:00:28,776 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 6 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:00:28,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 762 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2021-12-07 01:00:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-07 01:00:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-12-07 01:00:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 62 states have internal predecessors, (66), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-07 01:00:28,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2021-12-07 01:00:28,782 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 85 [2021-12-07 01:00:28,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:00:28,782 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-12-07 01:00:28,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.88) internal successors, (72), 23 states have internal predecessors, (72), 6 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2021-12-07 01:00:28,783 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2021-12-07 01:00:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-07 01:00:28,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:00:28,783 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:00:28,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-07 01:00:28,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:00:28,985 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:00:28,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:00:28,986 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 2 times [2021-12-07 01:00:28,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:00:28,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418432384] [2021-12-07 01:00:28,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:00:28,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:00:28,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:00:28,991 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:00:28,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-07 01:00:29,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:00:29,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:00:29,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 94 conjunts are in the unsatisfiable core [2021-12-07 01:00:29,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:29,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 16 [2021-12-07 01:00:30,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-12-07 01:00:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 01:00:30,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-12-07 01:00:30,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:30,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2021-12-07 01:00:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2021-12-07 01:00:31,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:31,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2021-12-07 01:00:32,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2021-12-07 01:00:32,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:32,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 93 [2021-12-07 01:00:35,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:35,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:35,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 173 [2021-12-07 01:00:40,903 INFO L354 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2021-12-07 01:00:40,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2021-12-07 01:00:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-07 01:00:41,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:00:41,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:00:41,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418432384] [2021-12-07 01:00:41,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418432384] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:41,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1671558343] [2021-12-07 01:00:41,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:00:41,761 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-07 01:00:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-07 01:00:41,762 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-07 01:00:41,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-12-07 01:00:42,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:00:42,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:00:42,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-07 01:00:42,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:00:42,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 16 [2021-12-07 01:00:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:43,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-12-07 01:00:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:44,178 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:44,187 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-12-07 01:00:44,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2021-12-07 01:00:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:44,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:44,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:44,766 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:44,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2021-12-07 01:00:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:45,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:45,373 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:45,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-12-07 01:00:46,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:46,076 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:46,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 72 [2021-12-07 01:00:46,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:46,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:46,840 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:46,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2021-12-07 01:00:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:47,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:47,706 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:47,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 98 [2021-12-07 01:00:48,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:48,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:48,672 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 01:00:48,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 102 [2021-12-07 01:00:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:00:54,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:00:54,791 INFO L354 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2021-12-07 01:00:54,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 57 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 183 [2021-12-07 01:01:03,537 INFO L354 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2021-12-07 01:01:03,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 29 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 34 case distinctions, treesize of input 134 treesize of output 64 [2021-12-07 01:01:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-07 01:01:03,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:01:03,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1671558343] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:01:03,599 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:01:03,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37] total 72 [2021-12-07 01:01:03,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880093466] [2021-12-07 01:01:03,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:01:03,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-12-07 01:01:03,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:01:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-12-07 01:01:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=5497, Unknown=0, NotChecked=0, Total=5852 [2021-12-07 01:01:03,602 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2021-12-07 01:01:27,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:41,519 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2021-12-07 01:01:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-07 01:01:41,520 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) Word has length 87 [2021-12-07 01:01:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:41,521 INFO L225 Difference]: With dead ends: 165 [2021-12-07 01:01:41,521 INFO L226 Difference]: Without dead ends: 161 [2021-12-07 01:01:41,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 97 SyntacticMatches, 18 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4046 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=854, Invalid=10918, Unknown=0, NotChecked=0, Total=11772 [2021-12-07 01:01:41,524 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 181 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 372 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:41,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 1581 Invalid, 2861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2300 Invalid, 0 Unknown, 372 Unchecked, 31.8s Time] [2021-12-07 01:01:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-07 01:01:41,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 151. [2021-12-07 01:01:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 108 states have (on average 1.0833333333333333) internal successors, (117), 109 states have internal predecessors, (117), 27 states have call successors, (27), 18 states have call predecessors, (27), 15 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-12-07 01:01:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 167 transitions. [2021-12-07 01:01:41,542 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 167 transitions. Word has length 87 [2021-12-07 01:01:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:41,543 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 167 transitions. [2021-12-07 01:01:41,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 68 states have (on average 1.6323529411764706) internal successors, (111), 67 states have internal predecessors, (111), 12 states have call successors, (21), 7 states have call predecessors, (21), 10 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2021-12-07 01:01:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 167 transitions. [2021-12-07 01:01:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-07 01:01:41,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:41,544 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:41,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-12-07 01:01:41,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-07 01:01:41,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:01:41,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:01:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1360942848, now seen corresponding path program 1 times [2021-12-07 01:01:41,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:01:41,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849232276] [2021-12-07 01:01:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:01:41,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:01:41,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:01:41,951 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:01:41,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-07 01:01:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:01:42,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:01:42,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:01:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-12-07 01:01:42,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:01:42,420 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:01:42,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849232276] [2021-12-07 01:01:42,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849232276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:01:42,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:01:42,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:01:42,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019865309] [2021-12-07 01:01:42,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:01:42,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:01:42,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:01:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:01:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:01:42,421 INFO L87 Difference]: Start difference. First operand 151 states and 167 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-07 01:01:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:42,521 INFO L93 Difference]: Finished difference Result 191 states and 206 transitions. [2021-12-07 01:01:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:01:42,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2021-12-07 01:01:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:42,522 INFO L225 Difference]: With dead ends: 191 [2021-12-07 01:01:42,522 INFO L226 Difference]: Without dead ends: 147 [2021-12-07 01:01:42,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:01:42,523 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:42,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 151 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-12-07 01:01:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-07 01:01:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-12-07 01:01:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 105 states have (on average 1.0476190476190477) internal successors, (110), 106 states have internal predecessors, (110), 26 states have call successors, (26), 18 states have call predecessors, (26), 15 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-07 01:01:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-12-07 01:01:42,536 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 89 [2021-12-07 01:01:42,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:42,537 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-12-07 01:01:42,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-07 01:01:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-12-07 01:01:42,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-07 01:01:42,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:42,538 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:42,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-07 01:01:42,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:01:42,739 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:01:42,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash -250047413, now seen corresponding path program 3 times [2021-12-07 01:01:42,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:01:42,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549890193] [2021-12-07 01:01:42,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 01:01:42,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:01:42,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:01:42,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:01:42,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-07 01:01:43,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-12-07 01:01:43,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:01:43,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-07 01:01:43,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:01:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-07 01:01:44,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:01:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 9 proven. 84 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-07 01:01:46,176 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:01:46,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549890193] [2021-12-07 01:01:46,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549890193] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:01:46,176 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:01:46,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 38 [2021-12-07 01:01:46,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826504500] [2021-12-07 01:01:46,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:01:46,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-07 01:01:46,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:01:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-07 01:01:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2021-12-07 01:01:46,178 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2021-12-07 01:01:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:54,073 INFO L93 Difference]: Finished difference Result 221 states and 252 transitions. [2021-12-07 01:01:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-07 01:01:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 89 [2021-12-07 01:01:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:54,077 INFO L225 Difference]: With dead ends: 221 [2021-12-07 01:01:54,077 INFO L226 Difference]: Without dead ends: 169 [2021-12-07 01:01:54,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=658, Invalid=2648, Unknown=0, NotChecked=0, Total=3306 [2021-12-07 01:01:54,079 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 441 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:54,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 973 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1012 Invalid, 0 Unknown, 69 Unchecked, 2.2s Time] [2021-12-07 01:01:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-12-07 01:01:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-12-07 01:01:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 127 states have (on average 1.047244094488189) internal successors, (133), 128 states have internal predecessors, (133), 26 states have call successors, (26), 18 states have call predecessors, (26), 15 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-07 01:01:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 181 transitions. [2021-12-07 01:01:54,097 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 181 transitions. Word has length 89 [2021-12-07 01:01:54,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:54,098 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 181 transitions. [2021-12-07 01:01:54,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 2.388888888888889) internal successors, (86), 37 states have internal predecessors, (86), 8 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2021-12-07 01:01:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 181 transitions. [2021-12-07 01:01:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-07 01:01:54,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:54,099 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:54,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-07 01:01:54,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:01:54,300 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:01:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash -59588295, now seen corresponding path program 4 times [2021-12-07 01:01:54,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:01:54,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657200514] [2021-12-07 01:01:54,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 01:01:54,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:01:54,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:01:54,306 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:01:54,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-07 01:01:54,543 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 01:01:54,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:01:54,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-07 01:01:54,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:01:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 38 proven. 269 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-07 01:01:56,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:02:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 9 proven. 269 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-07 01:02:00,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:02:00,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657200514] [2021-12-07 01:02:00,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657200514] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:02:00,447 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:02:00,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 56 [2021-12-07 01:02:00,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676654730] [2021-12-07 01:02:00,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:02:00,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-12-07 01:02:00,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:02:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-12-07 01:02:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-12-07 01:02:00,450 INFO L87 Difference]: Start difference. First operand 169 states and 181 transitions. Second operand has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2021-12-07 01:02:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:02:04,702 INFO L93 Difference]: Finished difference Result 231 states and 255 transitions. [2021-12-07 01:02:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-07 01:02:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) Word has length 103 [2021-12-07 01:02:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:02:04,704 INFO L225 Difference]: With dead ends: 231 [2021-12-07 01:02:04,704 INFO L226 Difference]: Without dead ends: 195 [2021-12-07 01:02:04,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=769, Invalid=3391, Unknown=0, NotChecked=0, Total=4160 [2021-12-07 01:02:04,705 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 659 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 156 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:02:04,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 2032 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1364 Invalid, 0 Unknown, 156 Unchecked, 3.4s Time] [2021-12-07 01:02:04,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-12-07 01:02:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 171. [2021-12-07 01:02:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 129 states have (on average 1.0465116279069768) internal successors, (135), 130 states have internal predecessors, (135), 26 states have call successors, (26), 18 states have call predecessors, (26), 15 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-07 01:02:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 183 transitions. [2021-12-07 01:02:04,722 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 183 transitions. Word has length 103 [2021-12-07 01:02:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:02:04,722 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 183 transitions. [2021-12-07 01:02:04,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 2.090909090909091) internal successors, (115), 53 states have internal predecessors, (115), 10 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 11 states have call predecessors, (19), 10 states have call successors, (19) [2021-12-07 01:02:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 183 transitions. [2021-12-07 01:02:04,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-07 01:02:04,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:02:04,723 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:02:04,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-07 01:02:04,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:02:04,924 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:02:04,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:02:04,924 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2021-12-07 01:02:04,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:02:04,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365225002] [2021-12-07 01:02:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:02:04,925 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:02:04,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:02:04,926 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:02:04,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-07 01:02:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:02:05,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 57 conjunts are in the unsatisfiable core [2021-12-07 01:02:05,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:02:06,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:06,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2021-12-07 01:02:11,179 INFO L354 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2021-12-07 01:02:11,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2021-12-07 01:02:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 01:02:11,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:02:11,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:02:11,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365225002] [2021-12-07 01:02:11,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365225002] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:02:11,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1662877777] [2021-12-07 01:02:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:02:11,711 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-07 01:02:11,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-07 01:02:11,712 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-07 01:02:11,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-12-07 01:02:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:02:12,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 52 conjunts are in the unsatisfiable core [2021-12-07 01:02:12,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:02:13,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:13,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:13,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2021-12-07 01:02:17,195 INFO L354 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2021-12-07 01:02:17,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2021-12-07 01:02:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-07 01:02:17,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:02:17,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1662877777] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:02:17,247 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:02:17,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 42 [2021-12-07 01:02:17,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547449463] [2021-12-07 01:02:17,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:02:17,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-07 01:02:17,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:02:17,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-07 01:02:17,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1931, Unknown=0, NotChecked=0, Total=2162 [2021-12-07 01:02:17,250 INFO L87 Difference]: Start difference. First operand 171 states and 183 transitions. Second operand has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:02:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:02:30,881 INFO L93 Difference]: Finished difference Result 174 states and 185 transitions. [2021-12-07 01:02:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-07 01:02:30,881 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) Word has length 108 [2021-12-07 01:02:30,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:02:30,882 INFO L225 Difference]: With dead ends: 174 [2021-12-07 01:02:30,882 INFO L226 Difference]: Without dead ends: 106 [2021-12-07 01:02:30,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 159 SyntacticMatches, 23 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=311, Invalid=2445, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:02:30,883 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 140 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:02:30,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 872 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 861 Invalid, 0 Unknown, 96 Unchecked, 12.8s Time] [2021-12-07 01:02:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-12-07 01:02:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-12-07 01:02:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 84 states have (on average 1.0476190476190477) internal successors, (88), 85 states have internal predecessors, (88), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 01:02:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2021-12-07 01:02:30,894 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 108 [2021-12-07 01:02:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:02:30,894 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2021-12-07 01:02:30,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 37 states have internal predecessors, (82), 9 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:02:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2021-12-07 01:02:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-07 01:02:30,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:02:30,895 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:02:30,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-07 01:02:31,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-12-07 01:02:31,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt [2021-12-07 01:02:31,296 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:02:31,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:02:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 5 times [2021-12-07 01:02:31,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:02:31,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184977271] [2021-12-07 01:02:31,300 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 01:02:31,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:02:31,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:02:31,302 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:02:31,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-07 01:02:34,336 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-12-07 01:02:34,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:02:34,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 157 conjunts are in the unsatisfiable core [2021-12-07 01:02:34,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:02:34,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-12-07 01:02:34,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:34,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-12-07 01:02:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-12-07 01:02:35,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:35,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 53 [2021-12-07 01:02:36,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2021-12-07 01:02:36,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:36,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2021-12-07 01:02:37,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 95 [2021-12-07 01:02:37,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:37,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2021-12-07 01:02:38,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 114 [2021-12-07 01:02:38,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:38,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2021-12-07 01:02:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:39,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 140 [2021-12-07 01:02:40,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:40,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 154 [2021-12-07 01:02:41,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:41,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 168 [2021-12-07 01:02:42,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:42,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 178 [2021-12-07 01:02:43,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:43,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 191 [2021-12-07 01:02:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:44,690 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:02:44,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 164 treesize of output 205 [2021-12-07 01:02:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:53,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:53,769 INFO L354 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2021-12-07 01:02:53,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 148 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 128 case distinctions, treesize of input 222 treesize of output 294 [2021-12-07 01:02:56,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,593 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:02:56,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:02:56,684 INFO L354 Elim1Store]: treesize reduction 216, result has 25.3 percent of original size [2021-12-07 01:02:56,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 128 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 284 case distinctions, treesize of input 300 treesize of output 396 [2021-12-07 01:03:06,488 INFO L354 Elim1Store]: treesize reduction 770, result has 0.9 percent of original size [2021-12-07 01:03:06,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 120 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 239 treesize of output 109 [2021-12-07 01:03:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 38 proven. 284 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-07 01:03:06,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:03:07,936 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:03:07,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184977271] [2021-12-07 01:03:07,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184977271] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:03:07,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1472387566] [2021-12-07 01:03:07,936 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 01:03:07,936 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-07 01:03:07,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-07 01:03:07,937 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-07 01:03:07,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a51ff33-9f89-4cb4-b8f7-77f9c708cca2/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process